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Internal-Model-Principle-Based Specific Harmonics Repetitive Controller for Grid-Connected PWM Inverters

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  • Wenzhou Lu
  • Jinfei Shen
  • Yunhu Yang

Abstract

This paper analyzes the general properties of IMP-based controller and presents an internal-model-principle-based (IMP-based) specific harmonics repetitive control (SHRC) scheme. The proposed SHRC is effective for specific order harmonics, with and . Using the properties of exponential function, SHRC can also be rewritten into the format of multiple resonant controllers in parallel, where the control gain of SHRC is multiple of that of conventional RC (CRC). Therefore, including SHRC in a stable closed-loop feedback control system, asymptotic disturbance eliminating, or reference tracking for any periodic signal only including these specific harmonic components at times faster error convergence rate compared with CRC can be achieved. Application examples of SHRC controlled three-phase/single-phase grid-connected PWM inverters demonstrate the effectiveness and advantages of the proposed SHRC scheme.

Suggested Citation

  • Wenzhou Lu & Jinfei Shen & Yunhu Yang, 2016. "Internal-Model-Principle-Based Specific Harmonics Repetitive Controller for Grid-Connected PWM Inverters," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-10, August.
    • Handle: RePEc:hin:jnlmpe:9640403
    DOI: 10.1155/2016/9640403
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