RESEARCH ON DYNAMIC PERFORMANCE OF 2DOF DIFFERENTIAL EVOLUTION CONTROL FOR SVC

Zhang Lufeng; Ma Jiaqing; He Zhiqin; Wu Qinmu; Chen Changsheng; Qin Tao

doi:10.19912/j.0254-0096.tynxb.2023-1458

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (1) : 472-479. DOI: 10.19912/j.0254-0096.tynxb.2023-1458

RESEARCH ON DYNAMIC PERFORMANCE OF 2DOF DIFFERENTIAL EVOLUTION CONTROL FOR SVC

Zhang Lufeng, Ma Jiaqing, He Zhiqin, Wu Qinmu, Chen Changsheng, Qin Tao

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Abstract

In order to improve the dynamic performance of the static var compensator in the rectification process of the wind turbine and the ability to suppress the harmonics of the power grid, the controller in the system rectification process is improved. Firstly, the DC side of the static var compensator is connected in parallel with the DC side of the rectified wind power system. Then, on the voltage outer loop, the fractional order PID controller is designed based on the fractional calculus theory, and the differential evolution algorithm is used to adjust its parameters. On the current inner loop, a two-degree-of-freedom PID controller is used to improve the stability and anti-interference ability of the current. On this basis, the model is built on the Matlab / Simulink simulation platform. The simulation results show that the proposed method is not only stable, but also compared with the traditional PI controller, fractional order PID controller and fractional order PID controller based on differential evolution optimization algorithm. The response speed and overshoot are significantly reduced, and the dynamic response performance is better. After entering the steady state, the total harmonic distortion factor and ripple coefficient are significantly reduced, and the harmonic suppression ability of the power grid is improved.

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wind turbines / static var compensators / differential evolution algorithm / fractional calculus / two degree of freedom PID controller

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Zhang Lufeng, Ma Jiaqing, He Zhiqin, Wu Qinmu, Chen Changsheng, Qin Tao. RESEARCH ON DYNAMIC PERFORMANCE OF 2DOF DIFFERENTIAL EVOLUTION CONTROL FOR SVC[J]. Acta Energiae Solaris Sinica. 2025, 46(1): 472-479 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1458

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