High-Performance Fractional Order PIMR-Type Repetitive Control for a Grid-Tied Inverter

Jun Yu, Qiangsong Zhao, Hengyi Li, Xuebin Yue and Shengjun Wen
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Jun Yu: Zhongyuan-Petersburg Aviation College, Zhongyuan University of Technology, Zhengzhou 450007, China
Qiangsong Zhao: School of Electronic and Information, Zhongyuan University of Technology, Zhengzhou 450007, China
Hengyi Li: Deparment of Electronic and Computer Engineering, Ritsumeikan University, Kusatsu 525-0058, Shiga, Japan
Xuebin Yue: Deparment of Electronic and Computer Engineering, Ritsumeikan University, Kusatsu 525-0058, Shiga, Japan
Shengjun Wen: Zhongyuan-Petersburg Aviation College, Zhongyuan University of Technology, Zhengzhou 450007, China

Energies, 2022, vol. 15, issue 11, 1-15

Abstract: Low switching frequency is usually used in high-power wind grid-tied inverter systems to reduce power loss caused by on–off switching activity. Proportional integral multi-resonant type repetitive control (PIMR-type RC) can track reference grid current signals and suppress harmonic signals of grid-tied inverter system. A low switching frequency will result in a low sampling rate of control system. However, integer-order phase-lead compensation will lead to a poor compensation accuracy of PIMR-type RC with a low sampling rate, leading to poor tracking and suppressing performance of PIMR-type RC, and even result in system instability. To solve these problems, a high-performance fractional-order phase-lead compensation PIMR-type RC (FO-PIMR-RC) scheme is proposed in this paper. Fractional-order phase-lead compensation is adopted to compensate accurately the phase lag caused by controlled plant and PIMR-type RC and approximately realized by a finite impulse response (FIR) filter. Stability analysis and harmonic suppression performance are provided, and the parameter optimization design is implemented. Simulation and experimental results prove the desirable performance of the proposed control scheme.

Keywords: low phase resolution; grid-tied inverter; PIMR-type RC; finite impulse response; fractional phase-lead compensation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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