Description:FIELD OF INVENTION

The invention resides in renewable energy innovation, specifically in advancing wind turbine technology. Introducing gearless wind turbine systems with Permanent Magnet Synchronous Generator (PMSG) technology aims to enhance reliability and efficiency while reducing maintenance costs. This innovation holds significant promise for offshore wind energy applications, offering a sustainable and economically viable solution to meet growing energy demands.

OBJECTIVES OF THE INVENTION

This invention aimsto enhance the efficiency and reliability of wind turbine systems while reducing maintenance costs. By introducing gearless wind turbine technology with Permanent Magnet Synchronous Generator (PMSG), the invention seeks to overcome the limitations of traditional gearbox-based designs. This innovation aims to optimize wind energy generation, particularly in offshore applications, by streamlining operations and minimizing downtime, thereby advancing sustainability in renewable energy production.

BACKGROUND OF THE INVENTION

Extensive research and industry reports highlight significant issues associated with traditional wind turbine gearboxes. These include high maintenance costs, frequent breakdowns, and reliability concerns, particularly in offshore wind farms. Offshore installations present unique challenges due to the harsh marine environment and limited accessibility for maintenance operations. The need for specialized equipment and skilled personnel further exacerbates the logistical and financial challenges associated with gearbox maintenance.

In response to these limitations, researchers and industry stakeholders have explored alternative solutions to improve the efficiency and reliability of wind turbine systems. One such solution is the development of gearless wind turbine technology. Gearless turbines eliminate the need for gearboxes, thus reducing the complexity of the system and mitigating the associated maintenance challenges.Additionally, gearless wind turbines often incorporate Permanent Magnet Synchronous Generator(PMSG) systems, which offer several advantages over traditional generator designs. PMSG systems feature permanent magnets in the rotor, eliminating the need for a separate excitation power source. This simplifies the design and reduces maintenance requirements while improving overall efficiency.
The integration of gearless technology with PMSG systems has garnered significant attention in the renewable energy sector. Studies and pilot projects have demonstrated the potential of these innovative systems to enhance overall reliability, reduce operational costs, and improve energy efficiency. Gearless turbines exhibit increased durability and require less frequent maintenance, making them well-suited for remote and offshore installations where accessibility and maintenance costs are significant concerns.The evolution towards direct-drive wind turbine systems with PMGs represents a significant advancement in wind energy technology, addressing longstanding challenges associated with gearbox-based designs and paving the way for more reliable and efficient renewable energy generation as disclosed in CN103795081B.The turbine generates mechanical energy, which is then converted into electrical energy by the generator. This electrical energy is distributed into multiple isolated supplies, each serving different power stages or subsystems within the overall system. Each power stage utilizes the electrical power according to its specific function or requirement. This setup allows for efficient utilization of the generated energy across different applications or loads within the system as mentioned in S8106526B2.For instance, CN103939290A discloses wind turbine control apparatus leverages a neural network to optimize the rotor’s angular speed dynamically. This approach enhances power generation efficiency across a wide range of wind velocities, reflecting advancements in wind turbine technology aimed at maximizing renewable energy output.US10424935B2 the described system and methods leverage advanced control technologies to optimize the operation of power generation facilities, particularly solar farms, in contributing to the stability and reliability of power transmission systems. This integration represents a significant advancement in managing and maximizing the benefits of renewable energy within modern electrical grids.
Accordingly, there is an urgent need and demand for efficient and reliable wind turbine systems while reducing maintenance costs. The present invention to overcome these problems observedin the prior art and discloses PowerQualityEnhancementforaGridConnectedWindTurbineEnergySystemwithPMSG anddevoid of the above-mentioned drawbacks.

SUMMARY OF THE INVENTION

The invention introduces a groundbreaking advancement in wind turbine technology by eliminating traditional gearboxes and introducing gearless wind turbine systems with Permanent Magnet Synchronous Generator (PMSG) technology. This innovative approach addresses significant challenges associated with maintenance, reliability, and efficiency in wind energy generation. By removing gearboxes, the invention reduces complexity, maintenance costs, and downtime, particularly in offshore wind farms where accessibility for maintenance operations is limited.

The integration of gearless technology with PMSG systems enhances system durability and efficiency. PMSG systems feature permanent magnets in the rotor, simplifying design and reducing maintenance requirements. This enables gearless turbines to operate with increased reliability and lower maintenance needs, making them ideal for remote and offshore installations. Additionally, gearless turbines align with industry trends towards variable-speed wind energy conversion systems, offering better energy capture and improved power quality.

The invention's significance extends beyond individual projects to the broader transition towards sustainable energy systems. As the world seeks to reduce reliance on fossil fuels and mitigate climate change, innovations in wind energy technology are crucial. The invention plays a pivotal role in accelerating this transition by providing a sustainable and cost-effective solution for wind energy generation.

In summary, the invention represents a paradigm shift in wind turbine technology,offering a promising solution to enhance reliability, reduce maintenance costs, and improve energy efficiency in wind power generation. By leveraging gearless technology with PMSG systems, the invention contributes to the advancement of renewable energy solutions and the realization of a cleaner, more sustainable energy future.

DETAILED DESCRIPTION OF THE INVENTION

The invention comprises a comprehensive system for wind energy generation, centered around gearless wind turbine technology integrated with Permanent Magnet Synchronous Generator (PMSG) systems. The core of this innovative system lies in the elimination of traditional gearboxes,thereby simplifying the turbine design,reducingmaintenance requirements, and enhancing overall reliability. Gearless turbines are inherently lighter and more durable, making them particularly well-suited for offshore and remote installations where maintenance access is limited.
The integration of Permanent Magnet Synchronous Generator (PMSG) technology further enhances the efficiency and performance of the wind turbine system. PMSG systems feature permanent magnets in the rotor, eliminating the need for separate excitation power sources and simplifying the overall design. These systems offer improved energy conversion efficiency, reduced maintenance needs, and increased durability, particularly in harsh operating environments. By leveraging PMSG technology, the invention maximizes energy production while minimizing operational costs and environmental impact.

One of the key features of the invention is its ability to operate at variable speeds, allowing for optimal energy capture across a range of wind speeds. Variable speed operation improves energy capture, enhances power quality, and reduces mechanical stress on turbine components compared to fixed speed systems. By aligning with industry trends towards variable speed operation, the invention ensures efficient and sustainable energy production.

Moreover, the invention's design and capabilities are particularly well-suited for offshore wind farm applications, where maintenance accessibility and operational reliability are critical. By reducing maintenance requirements and downtime, the invention offers significant cost savings and operational efficiencies for offshore wind projects. The integration of gearless technology with PMSG systems enhances the viability and sustainability of offshore wind energy generation, contributing to the growth of the renewable energy sector.

Overall, the detailed description of the invention highlights its innovative design, technological advancements, and potential impact on the renewable energy sector. By integrating gearless wind turbine technology with PMSG systems, the invention offers a sustainable and cost-effective solution for wind energy generation, paving the way towards a cleaner, more sustainable energy future.
The global energy landscape is undergoing a transformative shift towards renewable resources, with wind power emerging as a cornerstone of clean energy production. In response to environmental concerns and the need to reduce dependence on fossil fuels, wind turbine systems have proliferated across the globe, tapping into the vast potential of wind energy. This expansion is fueled by advancements in technology, coupled with declining costs, making wind power an increasingly viable and competitive option for meeting electricity demand.
Central to the evolution of wind energy are variable speed wind turbine systems, which have supplanted fixed speed counterparts as the industry standard. These variable speed systems offer numerous advantages, including enhanced energy capture, improved power quality, and reduced mechanical stress on turbine components. By optimizing turbine operation to match varying wind speeds, variable speed systems maximize efficiency and output, making them indispensable in the pursuit of sustainable energy solutions.
A significant milestone in wind turbine technology is the widespread adoption of Permanent Magnet Synchronous Generators (PMSG).Theseinnovative generators leverage permanent magnets in the rotor to induce excitation fields, resulting in higher efficiency and reliability, particularly in low-speed direct drive configurations. However, challenges remain, such as limited control over rotor flux and efficiency peaking at specific wind speeds, underscoring the ongoing quest for technological refinement.
In parallel, advancements in power electronics have revolutionized wind turbine design, enabling the integration of full-scale power conversion systems. These systems, exemplified by variable speed turbines with full-scale power converters, facilitate seamless grid integration and enhance overall system performance. By effectively managing both active and reactive power, wind turbines contribute to grid stability and power quality, bolstering the reliability of renewable energy sources.Moreover, the transition towards gearless wind turbine designs, complemented by gearless generator technologies, promises to further revolutionize the industry. By eliminating the need forcomplex gearbox systems, gearless turbines reduce maintenance costs and downtime while enhancing reliability, particularly in offshore applications where accessibility and maintenance pose significant challenges.
In this context, this invention delves into the intricate interplay between wind characteristics, active and reactive power control, and the adoption of innovative technologies such as PMSG and gearless systems in wind turbine design. Through comprehensive analysis and simulation, the study seeks to elucidate the potential of these advancements to drive continued growth and sustainability in the wind energy sector, paving the way for a cleaner and more resilient energy future on a global scale.
The operation of a gearless wind turbine system is mainly of a without gear system, in which the electrical energy produced from the wind from the turbine is of AC, which can be converted into Direct current by placing the converter in series with the system. Now the DC power that can be stored in the battery can be converted into AC by using an Inverter and can be stepped up as per requirements.
A DC brushless motor operates on the principle of electromagnetic induction to generate rotational motion. Comprising a stationary stator with three-phase coils and a rotating rotor equipped with permanent magnets, the motor's commutation process is managed electronically by an Electronic Speed Controller (ESC). In some cases, Hall Effect sensors detect the rotor's position, providing feedback to the ESC. The ESC determines the optimal commutation sequence, energizing specific stator windings to create magnetic fields that interact with the rotor's magnets, inducing rotation. This continuous adjustment of magnetic fields ensures a smooth and efficient rotation of the rotor. The motor's speed is controlled by the ESC, varying the timing and duration of signals sent to the stator windings. DC brushless motors offer advantages such as higher efficiency, longer lifespan, reduced maintenance, and quiet operation, making them prevalent in applications requiring precise control and reliability, including electric vehicles, robotics, and cooling fans.

BRIEF DESCRIPTION OF DRAWING

Figure 1 Block Diagram of the Overall Structure of the present Invention

Figure 2 Hardware Implementation

DETAILED DESCRIPTION OF THE DRAWING

From Figure 1,the wind turbine(1a,2a) in the invention generates electrical energy, while the solar panel is not involved. To ensure a stable electrical output, a rectifier-inverter set (1c,2c) is utilized where a bridge rectifier is used to convert the alternating current (AC) produced by the wind turbine into direct current (DC). This rectified DC voltage is then regulated and synchronized by a control system, which may include a wind turbine controller or similar device.Subsequently, the synchronized DC voltage is directed to a battery for storage. This battery acts as an energy reservoir, storing the generated electricity for later use. The stored DC voltage can then be routed to an inverter, which converts it into alternating current (AC) voltage. This AC voltage is suitable for powering AC loads, providing electricity for various applications.Filters(1b,1d and 2b,2d) are placed before and after the bridge rectifier-inverter set to reduce the harmonics present in the signal. Proper filters and control methods should be integrated according to the generator types and power electronics topologies. The output of the filter (1d,2d) is fed to the grid(1f,2f) at the desired voltage level via transformer(1e,2e).

Figure 2, depicts the hardware model of the invention, which includes the wind turbine connected to a charge controller. The output of the charge controller is likely linked to a control system, such as a wind turbine controller or voltage regulator, which synchronises and regulates the DC voltage produced bythe wind turbine. The synchronized DC voltage is then stored in a 12V battery for later use. Finally, the battery output is connected to an inverter for converting the stored DC voltage into AC voltage, which can be utilized to power AC loads.
3 Claims & 2 Figures , Claims:The scope of the invention is defined by the following claims:

1. A hybrid wind turbine system, comprising:

a) Permanent Magnet Synchronous Generator based wind turbine (1a) featuring a rotor with one or more blades revolving around a generally horizontal axis, coupled to a generator for electricity generation. The wind turbine efficiently captures wind energy to produce electrical power. A tower structure supporting the wind turbine, constructed with a solid surface and possessing a generally hollow interior for cable routing and component installation.
b) A bridge rectifier inverter set(1c) module is integrated to provide the necessary interface to convert the alternating current (AC) produced by the wind turbine into direct current (DC). It synchronises and regulates the DC voltage produced by a wind turbine.
c) Filters(1b,1d) are integrated before and after the bridge-rectifier inverter set to reduce harmonics present in the signal. Proper filters and control methods should be integrated according to the generator types and power electronics topologies.
d) The output of the filter (1d) is fed to the grid(1f) at the desired voltage level via transformer(1e).

2. The hybrid wind turbine system as claimed in claim 1, wherein the tower structure is designed with a solid surface for structural support and stability. The hollow interior facilitates the installation of electrical wiring and components, enhancing the overall efficiency and functionality of the system.

3. The hybrid wind turbine system as claimed in claim 1, wherein the wind turbine incorporates a non-synchronous power generating capability. This capability enables the wind turbine to generate power independently of grid frequency, improving reliability and efficiency in varying wind conditions.