STATOR CURRENT HARMONIC SUPPRESSION METHOD OF PERMANENT MAGNET SYNCHRONOUS WIND GENERATOR BASED ON QROGI

Lai Jidong; Zheng Weiwei; Su Jianhui; Zhou Chenguang; Zhang Junjun; Li Yongqiang

doi:10.19912/j.0254-0096.tynxb.2022-0923

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (3) : 10-17. DOI: 10.19912/j.0254-0096.tynxb.2022-0923

STATOR CURRENT HARMONIC SUPPRESSION METHOD OF PERMANENT MAGNET SYNCHRONOUS WIND GENERATOR BASED ON QROGI

Lai Jidong¹, Zheng Weiwei¹, Su Jianhui¹, Zhou Chenguang¹, Zhang Junjun², Li Yongqiang¹

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Abstract

To reduce low order harmonic components of stator current in a permanent magnet synchronous wind generator driving system, a suppression method for current harmonics is proposed in this paper on the basis of quasi reduced order generalized integrator （QROGI）. The QROGI controller is introduced to the current loop of motor control system to suppress harmonic current using its high gain at certain AC frequency. In the rotating coordinate system, a harmonic current component is represented as an AC quantity on the direct axis and quadrature axis respectively, which is controlled by the superposition of QROGI controller in the current inner loop. This superimposed current loop controller is theoretically analyzed in detail and its each parameter is designed as well, where the design process and quantitative calculation method are offered step by step. The hardware-in-the-loop experimental platform is set up respectively and the corresponding results show that the stator harmonic current can be suppressed effectively by the proposed method.

Key words

permanent magnet synchronous wind generator / harmonic suppression / current control / quasi reduced order generalized integrator （QROGI） / parameter design

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Lai Jidong, Zheng Weiwei, Su Jianhui, Zhou Chenguang, Zhang Junjun, Li Yongqiang. STATOR CURRENT HARMONIC SUPPRESSION METHOD OF PERMANENT MAGNET SYNCHRONOUS WIND GENERATOR BASED ON QROGI[J]. Acta Energiae Solaris Sinica. 2024, 45(3): 10-17 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0923

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