Optimal Selective Harmonic Control for Power Harmonics Mitigation

Keliang Zhou, Yongheng Yang, Frede Blaabjerg, Danwei Wang

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38 Citationer (Scopus)
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This paper proposes an Internal Model Principle (IMP) based optimal Selective Harmonic Controller (SHC) for power converters to mitigate power harmonics. According to the harmonics distribution caused by power converters, a universal recursive SHC module is developed to deal with a featured group of power harmonics. The proposed optimal SHC is of hybrid structure: all recursive SHC modules with weighted gains are connected in parallel. It bridges the real “nk+-m order RC” and the complex “parallel structure RC”. Compared to other IMP based control solutions, it offers an optimal trade-off among the cost, the complexity and the performance: high accuracy, fast transient response, easy-implementation, cost-effective, and also easy-to-design. The analysis and synthesis of the optimal SHC system are addressed. The proposed SHC offers power convert-ers a tailor-made optimal control solution for compensating selected harmonic frequencies. Application examples of grid-connected inverters confirm the effectiveness of the proposed control scheme.
TidsskriftIEEE Transactions on Industrial Electronics
Udgave nummer2
Sider (fra-til)1220-1230
Antal sider11
StatusUdgivet - feb. 2015

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