POWER CONTROL OF VARIABLE SPEED WIND TURBINE BASED ON TRIPLE-STEP METHOD

Wang Zeli; Song Xupeng; Yang Yun; Gao Xin; Liu Chang; Ma Miaomiao

doi:10.19912/j.0254-0096.tynxb.2024-2150

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (4) : 278-285. DOI: 10.19912/j.0254-0096.tynxb.2024-2150

POWER CONTROL OF VARIABLE SPEED WIND TURBINE BASED ON TRIPLE-STEP METHOD

Wang Zeli¹, Song Xupeng¹, Yang Yun², Gao Xin², Liu Chang², Ma Miaomiao³

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Abstract

When the wind turbine power system works above the rated wind speed,the disturbance of wind speed can cause the output power fluctuation, which can influence the stability of the grid. In order to solve this actual problem, a nonlinear controller based on the systematic triple-step method is designed for the power control problem of variable speed wind turbines （VSWT） above the rated wind speed. The controller includes steady-state-like control, feedforward control based on reference dynamics and state-dependent feedback control. The controller gains are parameter-varying and state-dependent. Then, based on ISS theory, the robustness of the closed-loop system is analyzed and the selection principle of the parameters of the triple-step nonlinear controller is given. The triple-step control strategy is applied to the power control of the horizontal axis VSWT. The simulation results show that the triple-step nonlinear control strategy can accommodate the wide-range wind speed variations, achieve stable power output, and exhibit an excellent suppression capability for wind speed turbulence.

Key words

nonlinear control systems / robust stability / power control / triple-step method / VSWT

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Wang Zeli, Song Xupeng, Yang Yun, Gao Xin, Liu Chang, Ma Miaomiao. POWER CONTROL OF VARIABLE SPEED WIND TURBINE BASED ON TRIPLE-STEP METHOD[J]. Acta Energiae Solaris Sinica. 2026, 47(4): 278-285 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2150

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