Claims:1. A method of operating a motor in a solar panel system, comprising:
determining, using a processor 102 for a motor control, Photovoltaic Current (IPV), Photovoltaic Voltage (VPV), and Photovoltaic Output Power (PPV); and
computing, using said processor 102, a threshold value (P_threshold) of power corresponding to irradiation power, said P_threshold being computed such that:
when said power is below said P_threshold, motor 105 is operated using a first technique of maximum power point tracking (MPPT-1) that uses a constant reference value of MPP point,
whereas when said power is above said P_threshold, said processor 102 switches from MPPT-1 to a second technique of maximum power point tracking (MPPT-2) where real MPP point is tracked and said motor is operated at optimum power of solar panel 109.

2. The method of claim 1, wherein said processor switches from MPPT-1 to MPPT-2 such that no variation in frequency is observed at low power.

3. The method of claim 1, wherein said method further comprising the steps of:
computing, using said processor 102, time (Td) based on a combination of sampling time of load system and behavior of switching between MPPT-1 and MPPT-2.
waiting for said time (Td) before enabling said processor 102 to switch between MPPT-1 and MPPT-2.

4. The method of claim 1, wherein, at MPPT-1, there is minimum oscillation around the MPP point, and wherein at MPPT-2, maximum power is extracted from the solar panel 109.

5. A solar panel based system comprising:
a processor 102 for motor control of said solar panel, said processor 102 being configured to, based on any or a combination of Photovoltaic Current (IPV), Photovoltaic Voltage (VPV), and Photovoltaic Output Power (PPV), compute a threshold value (P_threshold) of power corresponding to irradiation power, said P_threshold being computed such that:

when said power is below said P_threshold, motor 105 is operated using a first technique of maximum power point tracking (MPPT-1) that uses a constant reference value of MPP point,
whereas when said power is above said P_threshold, said processor 102 switches from MPPT-1 to a second technique of maximum power point tracking (MPPT-2) where real MPP point is tracked and said motor is operated at optimum power of solar panel 109.

6. The system of claim 5, wherein said processor 102 forms part of a drive system 103 of said solar panel based system, said drive system 103 further comprising a three phase inverter and a three phase rectifier.

7. The system of claim 6, wherein said drive system 103 is operatively coupled with an input grid 104 on one side, and said motor 105 on the other side.

8. The system of claim 7, wherein said motor 105 is an induction motor, and wherein said processor 102 is a digital signal processor (DSP) 102.

9. The system of claim 6, wherein said drive system 103 is operatively coupled with one or more current sensors configured to assist in determining said IPV, and further operatively coupled with a pump 108.
, Description: TECHNICAL FIELD
[0001] The present disclosure relates to a maximum power point tracking (hereinafter “MPPT”) system and a method for tracking a maximum power point of a photovoltaic device (hereinafter “PV device”) for solar drives and solar pump controllers.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[0003] A photovoltaic device converts solar radiation to electricity. When the PV device provides electricity to a load, an output power of the PV device is determined by a power consumption of the load. If the power consumption of the load is lower than a maximum power point, the PV device cannot be working at the maximum power point.
[0004] In certain light intensity and ambient temperature, the output power of the PV array output voltage changes with changes only when a certain output voltage, in order to achieve maximum output power. Improve the overall efficiency of the photovoltaic power generation system, an important way is to adjust the operating point of the PV array, so that is always working in the vicinity of the maximum power point, namely to achieve maximum power point tracking MPPT (Maximum Power Point Tracking). In the case of variable weather conditions, the maximum power point of photovoltaic power generation system real-time tracking has become one of the hot research scholars.
[0005] Currently, conventional MPPT method comprising: a constant voltage method, a perturbation and observation method, incremental conductance, fuzzy control, and neural networks. Wherein the constant voltage is based on parameters associated with the external environment, the tracking result is not satisfactory. Incremental admittance relatively complex, high requirements on the control system. Neural network tracking is better, but the sample acquisition process more difficult and not easy to achieve the desired results. Fuzzy control method can respond quickly to changes in the external environment, but need to "expertise" as a basis, but the actual "expertise" is not complete, so there are limitations. When a sudden change in the external environment or a partial shadow, easy to make these algorithms search for local optimization, search efficiency. More specifically, variations and oscillation in motor frequency and hence motor power is observed when irradiance is varying continuously or under cloudy atmosphere.
[0006] Whereas there is certainly nothing wrong with conventional tracking method, nonetheless, there still exists a need to provide an efficient, effective, reliable, improved, cost effective and reliable system and method that utilizes multiple MPPT methods to provide the system stability for both low and high irradiation operation of solar drive and hence maximizing the output.
[0007] All publications herein are incorporated by reference to the same extent as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference. Where a definition or use of a term in an incorporated reference is inconsistent or contrary to the definition of that term provided herein, the definition of that term provided herein applies and the definition of that term in the reference does not apply.
[0008] In some embodiments, the numbers expressing quantities of ingredients, properties such as concentration, reaction conditions, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term “about”. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
[0009] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[00010] The recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
[00011] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.

SUMMARY
[00012] The present disclosure relates to a maximum power point tracking (hereinafter “MPPT”) system and a method for tracking a maximum power point of a photovoltaic device (hereinafter “PV device”) for solar drives and solar pump controllers.
[00013] Embodiments of the present disclosure provide an efficient, effective, reliable, and improved system and method that utilizes multiple MPPT methods to provide the system stability for both low and high irradiation operation of solar drive and hence maximizing the output.
[00014] Accordingly, an aspect of the present disclosure relates to a method of operating a motor in a solar panel system
[00015] At step 202, the processor 102 monitors Photovoltaic Current (IPV), Photovoltaic Voltage (VPV), and Photovoltaic Output Power (PPV) using a processor for a motor control.
[00016] At step 204, the processor computes a threshold value (P_threshold) of power corresponding to irradiation power.
[00017] At step 206, the threshold value (P_threshold) is computed such that when said power is below said P_threshold, motor is operated using a first technique of maximum power point tracking (MPPT-1) that uses a constant reference value of MPP point (as recited in step 208).
[00018] At step 206, when said power is above said P_threshold, said processor switches from MPPT-1 to a second technique of maximum power point tracking (MPPT-2) where real MPP point is tracked and said motor is operated at optimum power of solar panel (as recited in step 210).
[00019] In an aspect, said processor switches from MPPT-1 to MPPT-2 such that no variation in frequency is observed at low power.
[00020] In an aspect, said method further includes the steps of computing time (Td) based on a combination of sampling time of load system and behavior of switching between MPPT-1 and MPPT-2 using said processor, and waiting for said time (Td) before enabling said processor to switch between MPPT-1 and MPPT-2.
[00021] Another aspect of the present disclosure relates to solar panel based system. The solar panel based system includes a processor for motor control of said solar panel, said processor being configured to, based on any or a combination of Photovoltaic Current (IPV), Photovoltaic Voltage (VPV), and Photovoltaic Output Power (PPV), compute a threshold value (P_threshold) of power corresponding to irradiation power. In an aspect, when said power is below said P_threshold, motor is operated using a first technique of maximum power point tracking (MPPT-1) that uses a constant reference value of MPP point. In another aspect, when said power is above said P_threshold, said processor switches from MPPT-1 to a second technique of maximum power point tracking (MPPT-2) where real MPP point is tracked and said motor is operated at optimum power of solar panel.
[00022] In an aspect, the processor forms part of a drive system of said solar panel based system. In another aspect, the drive system further includes a three phase inverter and a three phase rectifier.
[00023] In an aspect, the drive system is operatively coupled with an input grid on one side, and said motor on the other side.
[00024] In an aspect, the motor is an induction motor. In another aspect, the processor is a digital signal processor (DSP).
[00025] In an aspect, the drive system is operatively coupled with one or more current sensors configured to assist in determining said IPV, and further operatively coupled with a pump.
[00026] In contrast to the convention tracking mechanism, the system and method according to the present disclosure are operating based on the equivalent irradiance level decided by the PV current increases the MPPT efficiency and also the stability i.e. oscillations and hence power loss during low irradiance are reduced and hence the water output will be continuous and no hunting or oscillations with the pump and thus pump life will also be increased.
[00027] Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[00028] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. The diagrams are for illustration only, which thus is not a limitation of the present disclosure, and wherein:
[00029] FIG. 1 illustrates an exemplary solar water pumping system, in accordance with an exemplary embodiment of the present disclosure.
[00030] FIG. 2 illustrates a flowchart showing exemplary switching between MPPT-1 and MPPT-2, in accordance with another exemplary embodiment of the present disclosure.
[00031] FIG. 3 illustrates an exemplary switching scheme for MPPT-1 and MPPT-2, in accordance with another exemplary embodiment of the present disclosure.

DETAILED DESCRIPTION
[00032] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.
[00033] If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[00034] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[00035] Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. These exemplary embodiments are provided only for illustrative purposes and so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those of ordinary skill in the art. The invention disclosed may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Various modifications will be readily apparent to persons skilled in the art. The general principles defined herein may be applied to other embodiments and applications without departing from the scope of the invention. Moreover, all statements herein reciting embodiments of the invention, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure). Also, the terminology and phraseology used is for the purpose of describing exemplary embodiments and should not be considered limiting. Thus, the present invention is to be accorded the widest scope encompassing numerous alternatives, modifications and equivalents consistent with the principles and features disclosed. For purpose of clarity, details relating to technical material that is known in the technical fields related to the invention have not been described in detail so as not to unnecessarily obscure the present invention.
[00036] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the "invention" may in some cases refer to certain specific embodiments only. In other cases it will be recognized that references to the "invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims.
[00037] All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
[00038] Various terms as used herein are shown below. To the extent a term used in a claim is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
[00039] The present disclosure relates to a maximum power point tracking (hereinafter “MPPT”) system and a method for tracking a maximum power point of a photovoltaic device (hereinafter “PV device”) for solar drives and solar pump controllers.
[00040] Embodiments of the present disclosure provide an efficient, effective, reliable, and improved system and method that utilizes multiple MPPT methods to provide the system stability for both low and high irradiation operation of solar drive and hence maximizing the output.
[00041] Accordingly, an aspect of the present disclosure relates to a method of operating a motor in a solar panel system. The method includes the steps of determining Photovoltaic Current (IPV), Photovoltaic Voltage (VPV), and Photovoltaic Output Power (PPV) using a processor for a motor control, computing a threshold value (P_threshold) of power corresponding to irradiation power using said processor.
[00042] In an aspect, the threshold value (P_threshold) is computed such that when said power is below said P_threshold, motor is operated using a first technique of maximum power point tracking (MPPT-1) that uses a constant reference value of MPP point. In another aspect, when said power is above said P_threshold, said processor switches from MPPT-1 to a second technique of maximum power point tracking (MPPT-2) where real MPP point is tracked and said motor is operated at optimum power of solar panel.
[00043] In an aspect, said processor switches from MPPT-1 to MPPT-2 such that no variation in frequency is observed at low power.
[00044] In an aspect, said method further includes the steps of computing time (Td) based on a combination of sampling time of load system and behavior of switching between MPPT-1 and MPPT-2 using said processor, and waiting for said time (Td) before enabling said processor to switch between MPPT-1 and MPPT-2.
[00045] Another aspect of the present disclosure relates to solar panel based system. The solar panel based system includes a processor for motor control of said solar panel, said processor being configured to, based on any or a combination of Photovoltaic Current (IPV), Photovoltaic Voltage (VPV), and Photovoltaic Output Power (PPV), compute a threshold value (P_threshold) of power corresponding to irradiation power. In an aspect, when said power is below said P_threshold, motor is operated using a first technique of maximum power point tracking (MPPT-1) that uses a constant reference value of MPP point. In another aspect, when said power is above said P_threshold, said processor switches from MPPT-1 to a second technique of maximum power point tracking (MPPT-2) where real MPP point is tracked and said motor is operated at optimum power of solar panel.
[00046] In an aspect, the processor forms part of a drive system of said solar panel based system. In another aspect, the drive system further includes a three phase inverter and a three phase rectifier.
[00047] In an aspect, the drive system is operatively coupled with an input grid on one side, and said motor on the other side.
[00048] In an aspect, the motor is an induction motor. In another aspect, the processor is a digital signal processor (DSP).
[00049] In an aspect, the drive system is operatively coupled with one or more current sensors configured to assist in determining said IPV, and further operatively coupled with a pump.
[00050] In contrast to the convention tracking mechanism, the system and method according to the present disclosure are operating based on the equivalent irradiance level decided by the PV current increases the MPPT efficiency and also the stability i.e. oscillations and hence power loss during low irradiance are reduced and hence the water output will be continuous and no hunting or oscillations with the pump and thus pump life will also be increased.
[00051] Embodiment of the present disclosure relates to multiple MPPT methods that are used to provide the system stability for both low and high irradiation operation of solar drive and hence maximizing the output. Here for low irradiance the constant reference method is switched in and for high irradiance modified Perturb and Observe (P&O) method is switched in. According to the present disclosure, a current threshold is detected i.e. solar (PV) current is measured and its threshold is decided based on the irradiance and if the current threshold is below the equivalent irradiance level method-1 i.e. constant voltage reference is switched wherein constant VMPP i.e. voltage at maximum power of panel is compared with PV voltage and motor is rotating at that particular frequency and if the said current threshold level is above the equivalent irradiance level, method-2 is switched on which will see the direction of change in power and change in voltage and accordingly generate the VMPP voltage reference and the motor will rotate at the provided frequency based on VMPP generated.
[00052] In an exemplary embodiment, the method-1 and method-2 operates based on an equivalent irradiance level decided by the PV current increases the MPPT efficiency and also the stability i.e. oscillations and hence power loss during low irradiance are reduced and hence the water output will be continuous and no hunting or oscillations with the pump and thus pump life will also be increased.
[00053] FIG. 1 illustrates an exemplary solar water pumping system, in accordance with an exemplary embodiment of the present disclosure. In an embodiment, FIG. 1 shows the solar water pumping system wherein IPV and VPV are PV current and voltage respectively.
[00054] In an exemplary emboidments, for the sake of understanding, below reference numerals/nomenclatures are used in FIG. 1 for associated feature/elements:
100= Three phase inverter
101= Three phase rectifier
102= DSP for motor control, wherein control and MPPT operation is taking place.
103= Drive system
104= Input grid
105= Induction motor
106,107=Current sensors-motor
108 = Pump load
109 = Solar panel
110-Switching pulses for three phase inverter
IPV= PV current sensor
VPV=Voltage sensor
[00055] In an exemplary embodiment, the present disclosure provides a solar panel based system. The solar panel based system includes a processor 102 for motor control of said solar panel 109, said processor 102 being configured to, based on any or a combination of Photovoltaic Current (IPV), Photovoltaic Voltage (VPV), and Photovoltaic Output Power (PPV), compute a threshold value (P_threshold) of power corresponding to irradiation power. In an aspect, when said power is below said P_threshold, motor 105 is operated using a first technique of maximum power point tracking (MPPT-1) that uses a constant reference value of MPP point. In another aspect, when said power is above said P_threshold, said processor switches from MPPT-1 to a second technique of maximum power point tracking (MPPT-2) where real MPP point is tracked and said motor is operated at optimum power of solar panel 109.
[00056] In an aspect, the processor 102 forms part of a drive system of said solar panel based system. In another aspect, the drive system further includes a three phase inverter and a three phase rectifier.
[00057] In an aspect, the drive system is operatively coupled with an input grid on one side, and said motor 105 on the other side.
[00058] In an aspect, the motor is an induction motor. In another aspect, the processor is a digital signal processor (DSP).
[00059] In an aspect, the drive system is operatively coupled with one or more current sensors configured to assist in determining said IPV, and further operatively coupled with a pump.
[00060] In contrast to the convention tracking mechanism, the system and method according to the present disclosure are operating based on the equivalent irradiance level decided by the PV current increases the MPPT efficiency and also the stability i.e. oscillations and hence power loss during low irradiance are reduced and hence the water output will be continuous and no hunting or oscillations with the pump and thus pump life will also be increased.
[00061] FIG. 2 illustrates a flowchart showing exemplary switching between MPPT-1 and MPPT-2, in accordance with another exemplary embodiment of the present disclosure. In an embodiment, FIG. 2 flow chart explains the operative algorithm.
[00062] Referring now to FIG. 2, the processor 102 can execute the mathematical calculation for PPV, IPV, VPV and obtain the values of P_Threshold and Td time. The P_Threshold value is the value of power corresponding to the low irradiation power and is decided based on the value below which there is power enough to operate motor MPPT-1 wherein a constant reference value of MPP point is taken and motor is operated. Once enough irradiation is avalailable and power is above the P_Threshold value the system switches to MPPT-2 method wherein the real MPP point is tracked and motor is operated at optimum power of the solar panel.
[00063] In an exemplary embodiment, this switching of methods i.e. MPPT-1 and 2 enables smooth operation of the system and no variation is frequency is observed at low power specifically. Here Td value is derived based on the sampling time of the load system and behavior of switching of MPPTmethods. Here, MPPT-1 is a constant MPP reference value and MPPT-2 is real MPPT reference point methods.
[00064] An aspect of the present disclosure relates to a method of operating a motor in a solar panel system. The method includes the steps of determining Photovoltaic Current (IPV), Photovoltaic Voltage (VPV), and Photovoltaic Output Power (PPV) using a processor for a motor control, computing a threshold value (P_threshold) of power corresponding to irradiation power using said processor.
[00065] In an aspect, the threshold value (P_threshold) is computed such that when said power is below said P_threshold, motor is operated using a first technique of maximum power point tracking (MPPT-1) that uses a constant reference value of MPP point. In another aspect, when said power is above said P_threshold, said processor switches from MPPT-1 to a second technique of maximum power point tracking (MPPT-2) where real MPP point is tracked and said motor is operated at optimum power of solar panel.
[00066] In an aspect, said processor switches from MPPT-1 to MPPT-2 such that no variation in frequency is observed at low power.
[00067] In an aspect, said method further includes the steps of computing time (Td) based on a combination of sampling time of load system and behavior of switching between MPPT-1 and MPPT-2 using said processor, and waiting for said time (Td) before enabling said processor to switch between MPPT-1 and MPPT-2.
[00068] FIG. 3 illustrates an exemplary switching scheme for MPPT-1 and MPPT-2, in accordance with another exemplary embodiment of the present disclosure. As shown in FIG. 3, either of 111 and 112 executes based on the value of P_Threshold which is decided by irradiation value converted to its equivalent power.
[00069] In an exemplary embodiment, for low irradiation i.e. low value of PV power MPPT-1 which is constant MPPT reference is executed so that there is minimum oscillation around the MPP point and when power is enough and above P_Threshold value MPPT-2 is executed and thus maximum power is extracted from solar panel. Thus two methods are taking in place as per the varying irradiation condition and the switching isn’t abrupt it switched after the delay time Td which can be decided based on load and system dynamics
[00070] The foregoing description of the specific embodiments will so fully reveal the general nature of the invention that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.
[00071] It should be apparent to those skilled in the art that many more modifications besides those already described are possible without departing from the inventive concepts herein. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms “comprises” and “comprising” should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refers to at least one of something selected from the group consisting of A, B, C ….and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc. The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the scope of the appended claims.
[00072] While embodiments of the present disclosure have been illustrated and described, it will be clear that the disclosure is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled in the art, without departing from the scope of the disclosure, as described in the claims.
[00073] In the description of the present specification, reference to the term "one embodiment," "an embodiments", "an example", "an instance", or "some examples" and the description is meant in connection with the embodiment or example described The particular feature, structure, material, or characteristic included in the present invention, at least one embodiment or example. In the present specification, the term of the above schematic representation is not necessarily for the same embodiment or example. Furthermore, the particular features structures, materials, or characteristics described in any one or more embodiments or examples in proper manner. Moreover, those skilled in the art can be described in the specification of different embodiments or examples are joined and combinations thereof.
[00074] All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
[00075] Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
[00076] The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.
[00077] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.