DESC:TECHNICAL FIELD OF THE INVENTION
The present disclosure generally relates to power system. More particularly it relates to a system which notifies the responsible person in case of detection of any fault in the system without any manual intervention and further helps us to identify the reason of the fault (e.g. Phase / Earth fault in cable or overhead network or transformer), which leads to proper and faster decision making for restoration of supply. Basically, a system which is capable of providing real time mobile application notification for any power system disturbance / events obtained from numerical protective relays.

BACKGROUND OF THE INVENTION
An electric power system may include one or all of the following components: generating electricity, transmitting electricity, and distributing electricity. Electricity can be generated at power plants such as coal-fired thermal power plants, nuclear power plants, etc. In order to increase efficiency, the voltage of the generated electricity is increased to a very high level (such as 400/220 kV) and transmitted through power lines. Power lines can transmit electricity over long distances, for example, through state power lines or across international borders, until it reaches its wholesale consumer, which can be a company that owns a local distribution network. Power lines can terminate at a transmission substation where a very high voltage level can be reduced to an intermediate voltage (such as 132 kV). From the transmission substation, smaller power lines. (Such as auxiliary transmission lines) transmit intermediate voltage to the distribution substations.

Conventional power systems exist to provide electrical power. In such a power system, faults may occur that are dangerous to users of the system, and that cause damage to the system that may be expensive and/or time-consuming to correct. For example, a power system that experiences a current short-circuit, such as an arc current, may cause a fire or explosion, or otherwise damage itself and related equipment and operators. In particular, very high voltage power systems, such as those that include a high-voltage power transformer, may experience such faults. When faults are quickly and accurately detected, they may be eliminated by corrective measures, such as an activation of a circuit breaker and, if necessary, subsequent repair of the power system. In this way, damage from the fault may be minimized.

One or more energy companies can manage the electricity system, including fault management, maintenance, and updates related to the electricity system. However, managing the power system is often inefficient and expensive. For example, an energy company that manages a local distribution network can manage in the event of network failures that may occur in power supply circuits or in circuits called side circuits, which are branches from power supply circuits. Management of the local distribution network is often based on telephone calls from consumers when a break occurs, or based on field workers who check the local distribution network on the ground.

In case of any event related to power system, an alarm is generated in the local station level and in the SCADA control center. For the manned station, the person present at the station identifies the event and communicates to the control room. For the unmanned station, the central control room informs the operating staff after getting SCADA notification. The operating staff moves to the respective station and identifies the event and communicates the same to the control room. Control room informs the concerned departments who finally decide the action plan based to the information obtained both from control room and operating staff. In case of any confusion, the concerned departments directly communicate with the operation staff and get correct information & communicate the same to the control engineer. Necessary action is being taken accordingly for restoration of power supply through SCADA operation or through operating staff whichever is convenient. It takes longer time to restore the supply because of delay in communication from control room personnel to the concerned departments and also getting the correct information due to human intervention involved in the system.

Accordingly, there is a dire need to provide a monitoring system which provides instant and authentic information in case of occurrence of any fault in the power system and a system which is capable of providing real time mobile application notification for any power system disturbance / events obtained from numerical protective relays.

SUMMARY OF THE INVENTION
The following disclosure presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. This summary is not an extensive overview of the present invention. It is not intended to identify the key/critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concept of the invention in a simplified form as a prelude to a more detailed description of the invention presented later.

An object of the present invention is to overcome the problems associated with the prior arts.

Another object of the present invention is to provide a monitoring system which provides instant and authentic information in case of occurrence of any fault in the power system.

Another object of the present invention is to provide a system which is capable of providing real time mobile application notification for any power system disturbance / events obtained from numerical protective relays.

Another object of the present invention is to provide a monitoring system which provides instant decision making for restoration of the power supply in a power system in case of occurrence of any fault event.

Another object of the present invention is to provide a monitoring system which provides the Sequence of Events (SOE) which helps in analyzing the reason of disturbance / fault.

Another object of the present invention is to provide a monitoring system for avoiding ambiguity in getting correct protection event in case of any power system disturbance and getting protection events on the go in mobility platform.

Yet another object of the present invention is to provide a monitoring system for fault detection with reduced human intervention.

Yet another object of the present invention is to provide a monitoring system for fault detection which leads to customer satisfaction as well as reduce the revenue loss due to less outage duration.

In accordance with the purposes of the invention, the present invention as embodied and broadly described herein provides a system for monitoring and notifying the fault ocurrence in a power system for instant identification of the accurate reason for the fault occurrence in the system for faster decision making so that the power supply can be properly restored without any delay. It employs a process for decision making in case of any power system disturbance and restoration of the supply.

Accordingly, an aspect of the present invention is to provide a monitoring system for power system which discloses the use of an IEC 61850 compatible numerical relays and communication network for delivering the information to the server. The monitoring system further comprises of software for interpreting the IEC61850 data, segregating the individual event and sending it to next level for further processing and application gateway software for sending the events to the push notification server hosted by Google (android push notification service) where the two software are hosted in different servers and connected through firewall. This monitoring system of the present disclosure discloses use of a mobile application for receiving push notification messages from android push notification server and displaying the detected fault events in a chronological order.

In one implementation of the present invention, a system for monitoring and notifying the fault occurrence in a power system comprises a relay network comprising plurality of numerical relays, a numerical relay interface software module in communication with the plurality of numerical relays, an application gateway software in communication with the numerical relay interface software module, a mobile application wherein the numeric relay interface software module interprets data packets received from the individual numeric relay in the relay network, segregates individual events and transmits the segregated individual events to the application gateway software and the application gateway software collects, stores and posts the segregated events to an android push notification server.

In one implementation of the present invention, the mobile application receives push notification messages from the android push notification server and displays the detected fault events in a chronological order.

In one implementation of the present invention, the numerical relay interface software module and the application gateway software are connected through a firewall and the mobile application is located at the power substation or generating station with single or multiple users.

Other aspects, advantages, and salient features of the invention will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the invention.

BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
The above and other aspects, features and advantages of the embodiments of the present disclosure will be more apparent in the following description taken in conjunction with the accompanying drawings, in which:

Figure 1 illustrates a schematic view of the system for protection and monitoring of the power System, in accordance with an embodiment of the present disclosure.

Persons skilled in the art will appreciate that elements in the figures are illustrated for simplicity and clarity and may not have been drawn to scale. For example, the dimensions of some of the elements in the figure may be exaggerated relative to other elements to help to improve understanding of various exemplary embodiments of the present disclosure. Throughout the drawings, it should be noted that like reference numbers are used to depict the same or similar elements, features, and structures.

DETAILED DESCRIPTION OF THE PRESENT INVENTION
The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding, but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.

It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, a reference to "a component surface" includes a reference to one or more of such surfaces.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments belong. Further, the meaning of terms or words used in the specification and the claims should not be limited to the literal or commonly employed sense, but should be construed in accordance with the spirit of the disclosure to most properly describe the present disclosure.

The terminology used herein is for the purpose of describing particular various embodiments only and is not intended to be limiting of various embodiments. As used herein, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising" used herein specify the presence of stated features, integers, steps, operations, members, components, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, members, components, and/or groups thereof. Also, Expressions such as "at least one of," when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.

The present disclosure provides a system for monitoring and notifying the fault ocurrence in a power system for instant identification of the accurate type of the fault occurrence in the system for faster decision making so that the power supply can be properly restored without any delay. It employs a process for decision making in case of any power system disturbance and restoration of the supply. The system further discloses the use of an IEC 61850 compatible numerical relays and communication network for delivering the information to the server. The system discloses instant mobile notification directly from the Protective relay for any protection events in the substation or generating station. The purpose is faster and correct decision making in case of any disturbance in the network.

Figure 1 shows the schematic drawing of the system for protection and monitoring of the power System in which an IEC 61850 compatible numerical relays and communication network for delivering the information to the server are shown which further comprises of software for interpreting the IEC61850 data, segregating the individual event and sending it to next level for further processing. Further, the figure shows application gateway software for sending the events to the push notification server where both the software are hosted in different servers and connected through firewall. The figure also shows users with mobility application for receiving the push notification messages from android push notification server and displaying the events in a chronological order.

In one implementation, the present invention discloses IEC 61850 compatible numerical relays and communication network for delivering the information to the server. IEC 61850 is the international standard for communication in substations. It enables integration of all protection, control, measurement and monitoring functions and additionally provides the means for high-speed substation protection applications.

In one implementation, the present invention discloses Software for interpreting the IEC 61850 data, segregating the individual event and sending it to next level for further processing and application gateway software for sending the events to the push notification server hosted by Google (android push notification service) where both the software are hosted in different servers and connected through firewall.

In one implementation, the monitoring system of the present disclosure discloses use of a mobile application for receiving push notification messages from android push notification server and displaying the detected fault events in a chronological order.

In one implementation of the present invention, a system for monitoring and notifying the fault occurrence in a power system comprises a relay network comprising plurality of numerical relays, a numerical relay interface software module in communication with the plurality of numerical relays, an application gateway software in communication with the numerical relay interface software module, a mobile application wherein the numeric relay interface software module interprets data packets received from the individual numeric relay in the relay network, segregates individual events and transmits the segregated individual events to the application gateway software and the application gateway software collects, stores and posts the segregated events to an android push notification server.

In one implementation of the present invention, the mobile application receives push notification messages from the android push notification server and displays the detected fault events in a chronological order.

In one implementation of the present invention, the numerical relay interface software module and the application gateway software are connected through a firewall and the mobile application is located at the power substation or generating station with single or multiple users.

Stages of Development:
In stage 1, a software prototype was developed and a trial was carried out on table top using two number of different relays and recived the correct message with correct time stamp almost instantly. Further, repeatability was also checked and it was found that no missed case and there was a very little variation in the response time.

In stage 2, the newly developed system was connected to a live 220/132/33 KV substation for ten numerical relays and even with these increased number of relays, no noticeable delay was found and all the evens were registered correctly.

In the present disclosure, the protection events come from IEC 61850 compatible numerical relays through the communication network to the IEC 61850 processing software. Prior to this step the software connects individual relays for getting the notification, the software then interprets the IEC 61850 data packets and segregates individual events. These events are pushed through web service to the application gateway software, which collects, stores and post the events to the Google Push Notification Server. Further, the mobile application available with end user, receives the push notification from Google server and instantly display the events with time stamp.

The system disclosed in the present disclosure is operating with numerical relays present in an EHV substation. There are 163 relays altogether in different voltage levels at the substation. These relays are connected to the communication network (). The IEC 61850 processing server can connect all the relays through the communication network. The application gateway server is connected to the IEC 61850 processing server through firewall since the application gateway server is connected to internet through enterprise IT network.

Those skilled in the art will recognize other use cases, improvements, and modification to the embodiments of the present disclosure. All such improvements and other use-cases are considered within the scope of the concepts disclosed herein.
,CLAIMS:1. A system for monitoring and notifying the fault occurrence in a power system, said system comprising:
a relay network comprising plurality of numerical relays;
a numerical relay interface software module in communication with the plurality of numerical relays;
an application gateway software in communication with the numerical relay interface software module;
a mobile application;
wherein the numeric relay interface software module interprets data packets received from the individual numeric relay in the relay network, segregates individual events and transmits the segregated individual events to the application gateway software; and
the application gateway software collects, stores and posts the segregated events to an android push notification server;
wherein the mobile application receives push notification messages from the android push notification server and displays the detected fault events in a chronological order.

2. The system as claimed in claim 1, wherein the plurality of numerical relays are IEC 61850 compatible numerical relays.

3. The system as claimed in claim 1, wherein the numerical relay interface software module and the application gateway software are hosted in two different servers.

4. The system as claimed in claim 3, wherein the numerical relay interface software module and the application gateway software are connected through a firewall.

5. The system as claimed in claim 1, wherein the mobile application is located at the power substation or generating station with single or multiple users.