WIDE AREA DAMPING CONTROL DESIGN METHOD OF DFIG BASED ON POTENTIAL ENERGY-SLIDING MODE

Liu Cheng; Diao Shuo; Hao Wenbo; Li Shouchao

doi:10.19912/j.0254-0096.tynxb.2022-0600

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (8) : 453-459. DOI: 10.19912/j.0254-0096.tynxb.2022-0600

WIDE AREA DAMPING CONTROL DESIGN METHOD OF DFIG BASED ON POTENTIAL ENERGY-SLIDING MODE

Liu Cheng¹, Diao Shuo¹, Hao Wenbo², Li Shouchao¹

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Abstract

In order to solve the nonlinear power oscillation problem in doubly-fed induction generators when they are integrated into power systems, a power oscillation damping controller featuring nonlinearity and robustness is proposed to reduce the power oscillation . Firstly, the energy function model of the power system containing wind power is constructed by factoring in the characteristics of the doubly-fed induction generator. Secondly, the sliding mode surface is created based on the constructed stable flow form. In this phase, a few errors and external disturbances in the modeling and simulation process are estimated with the use of an extended state observer. Finally, the power oscillation damping controller of the doubly-fed induction generator is designed based on three factors： the extended state observer, the sliding-mode variable structure control theory, and the energy function. The proposed method effectiveness is verified through the four-machine two-area test system.

Key words

wind turbines / DFIG / system stability / renewable energy resources / sliding mode control / energy function / power oscillation

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Liu Cheng, Diao Shuo, Hao Wenbo, Li Shouchao. WIDE AREA DAMPING CONTROL DESIGN METHOD OF DFIG BASED ON POTENTIAL ENERGY-SLIDING MODE[J]. Acta Energiae Solaris Sinica. 2023, 44(8): 453-459 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0600

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