MAXIMUM POWER POINT TRACKING CONTROL FOR WIND TURBINE CONSIDERING DYNAMIC PROCESS

Wang Xiaohu; Dong Jian; Liu Weichao; Zhang Linzhong; Han Xinyue

doi:10.19912/j.0254-0096.tynxb.2024-0618

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (8) : 96-103. DOI: 10.19912/j.0254-0096.tynxb.2024-0618

MAXIMUM POWER POINT TRACKING CONTROL FOR WIND TURBINE CONSIDERING DYNAMIC PROCESS

Wang Xiaohu, Dong Jian, Liu Weichao, Zhang Linzhong, Han Xinyue

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Abstract

In order to improve the wind energy capture capability during the dynamic operation of wind turbines, a compound control strategy of torque error feedforward and pitch angle follow-up is proposed, and a maximum power point tracking （MPPT） controller considering the dynamic process is designed. The unscented Kalman filter is used to estimate the aerodynamic torque of the rotor, and the Newton-Raphson iteration method is used to estimate the wind speed and tip speed ratio. The difference between the estimated aerodynamic torque and the steady-state optimal torque is used as the feedforward signal to control the electromagnetic torque of the generator, and the gain scheduling of the feedforward parameter generator speed is performed.The estimated value of the tip speed ratio is used to adjust the pitch angle, so that the pitch angle reaches the optimal value under the current tip speed ratio state, and the wind energy capture capability under the non-optimal tip speed ratio state is improved. The simulation results show that the control strategy can effectively improve the dynamic response of wind turbine MPPT and the amount of wind energy capture capability.

Key words

wind turbine / controller / pitch angle / maximum power point tracking / inertial response time / torque error feedforward

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Wang Xiaohu, Dong Jian, Liu Weichao, Zhang Linzhong, Han Xinyue. MAXIMUM POWER POINT TRACKING CONTROL FOR WIND TURBINE CONSIDERING DYNAMIC PROCESS[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 96-103 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0618

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