International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
Efficiency Enhancement of Permanent Magnet Synchronous Generator Wind Turbine Through Maximum Power Point Tracking using SIMULINK/MATLAB Asso Prof. Varaprasad KSB1, Durgasai Jeeru2, B.Devi3,V.Shanmukhi⁴,B.Vasanth⁵, B.Govardhan ⁶ 1Head of Deparment,Dept. of EEE, Visakha Institute of Engineering and Technology, Andhra Pradesh,India
2Student, Dept. of EEE, Visakha Institute of Engineering & Technology, A.P, India
3Student, Dept. of EEE, Visakha Institute of Engineering & Technology, A.P, India
4Student, Dept. of EEE, Visakha Institute of Engineering & Technology, A.P, India 5Student, Dept. of EEE, Visakha Institute of Engineering & Technology, A.P, India 6Student, Dept. of EEE, Visakha Institute of Engineering & Technology, A.P, India
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Abstract - The Renewable energy sources (RESs) more
Even abundance of wind power ,the output power is unstable in wind turbine due to the variation of wind speed. To overcome this challenge, the maximum power point tracking (MPPT) algorithm is mainly employed to enhance the efficiency of WECS. By this algorithm to maintain the output power of wind turbine at the maximum power point (MPP) irrespective of the wind speed variation.
utilized because of its abundant availability everywhere. The Wind Energy is gaining interest because of technology enhancement and significant power cost reduction. In order to enhance the efficiency of a wind energy conversion system (WECS), the maximum power point tracking (MPPT) algorithm is usually employed. This paper presents to extract the maximum available power under a sudden wind speed change condition, which is applied in a permanent magnet synchronous generator (PMSG)-based WECS and in order to eliminate the dependence on the characteristic curve of wind turbine, a conventional perturbation and observation (P&O) method has been proposed. This method perturbs a control variable in a certain step size, and then observes the changes of output power until the MPP can be obtained. Since the P&O method does not require the wind speed sensor as well as the prior information on wind turbine, it is known to be a reliable and flexible method. Beside theoretical analyses, the simulation results are provided to prove the effectiveness of the proposed MPPT algorithm.
Until now, various MPPT algorithms have been proposed for the purpose of tracking the MPP in a WECS. To achieve the maximum power of wind turbine at a given wind speed, according to characteristic curve the torque of a permanent magnet synchronous generator (PMSG) is controlled. The main drawback is the difficulty in determining the optimal power-speed curve of wind turbine which significantly varies by each wind turbine. Moreover, the optimal curve would be varied as the operating environment is changed. A perturbation and observation (P&O) method has been proposed due to independent of wind turbine design and information. This method perturbs a control variable in a certain step size, and then observes the changes of output power until the MPP can be obtained. Since the P&O method does not require the wind speed sensor as well as the prior information on wind turbine, it is known to be a reliable and flexible method. However, the main limitation of this algorithm is its poor MPP tracking performance under the rapid variation of wind speed.
Key Words: Maximum Power Point Tracking (MPPT), Permanent Magnet Synchronous Generator (PMSG), Torque Observer, Wind Energy Conversion System (WECS), Hill Climb Search (HCS) , Perturbation and Observation (P&O).
1.INTRODUCTION In recent years, renewable energy resources are attracting great attention due to the scarcity of fossil energy and the requirement of restricting carbon dioxide emission in worldwide. Among renewable energy resources, wind energy is considered as one of the most potential and promising resources. In a wind energy conversion system (WECS), the kinetic energy of wind is transformed into the mechanical energy via a wind turbine, and then, this energy is converted into the electrical energy by using a generator.
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This paper proposes an MPPT algorithm for a WECS only to eliminate the need of wind speed sensor and wind turbine parameters. The proposed algorithm uses the instantaneous power of wind turbine and the rotor speed of generator as inputs to produce an optimal rotor speed as the output, which enables to obtain the MPP of wind turbine at a given wind speed. The output power of wind turbine can be generally obtained by measuring the mechanical torque and angular speed of shaft.
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