Direct Harmonic Voltage Control Strategy of Shunt Active Power Filters Suitable for Microgrid Applications

The application of shunt active power filters (S-APFs) is considered to be the most popular approach for harmonic compensation due to its high simplicity, ease of installation and efficient control. Its functionality mainly depends upon the rapidness and precision of its internally built control algorithms. A S-APF is generally operated in the current controlled mode (CCM) with the detection of harmonic load current. Its operation may not be appropriate for the distributed power generation system (DPGS) due to the wide dispersion of nonlinear loads. Despite the fact that the voltage detection based resistive-APF (R-APF) appears to be more appropriate for use in the DPGS, the R-APF experiences poor performance in terms of mitigating harmonics and parameter tuning. Therefore, this paper introduces a direct harmonic voltage detection based control approach for the S-APF that does not need a remote harmonic load current since it only requires a local point of common coupling (PCC) voltage for the detection of harmonics. The complete design procedure of the proposed control approach is presented. In addition, experimental results are given in detail to validate the performance and superiority of the proposed method over the conventional R-APF control. Thus, the outcomes of this study approve the predominance of the discussed strategy.

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Cite this article

[IEEE Style]

H. M. Munir, J. Zou, C. Xie, K. Li, T. Younas, J. M. Guerrero, "Direct Harmonic Voltage Control Strategy of Shunt Active Power Filters Suitable for Microgrid Applications," Journal of Power Electronics, vol. 19, no. 1, pp. 265-277, 2019. DOI: 10.6113/JPE.2019.19.1.265.

[ACM Style]

Hafiz Mudassir Munir, Jianxiao Zou, Chuan Xie, Kay Li, Talha Younas, and Josep M. Guerrero. 2019. Direct Harmonic Voltage Control Strategy of Shunt Active Power Filters Suitable for Microgrid Applications. Journal of Power Electronics, 19, 1, (2019), 265-277. DOI: 10.6113/JPE.2019.19.1.265.