A novel controller for a voltage controlled voltage source inverter to mitigation voltage fluctuations measured at the point of common coupling

Shokri, Abdollah; Shareef, Hussain; Mohamed, Azah; Farhoodnea, Masoud; Zayandehroodi, Hadi

doi:10.1016/j.measurement.2014.09.042

Cited by 2 publications

(1 citation statement)

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“…The island operation mode is more prone to various power quality problems such as voltage deviation, threephase imbalance voltage Chen et al, 2021;Xu et al, 2019), and harmonic problem (Zhai et al, 2020;Yi et al, 2014;Wang, et al, 2019). The voltage deviation is mainly caused by the load change in the system (Shokri et al, 2015). The three-phase asymmetric load connected to the microgrid is the main cause of the three-phase voltage imbalance, which leads to increased system losses and malfunctions in the operation of electrical equipment (Shi et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

A Novel H∞ Robust Control Strategy for Voltage Source Inverter in Microgrid

et al. 2021

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The voltage control performance of the voltage source inverter (VSI) in a microgrid may change under different load conditions. However, in the case of traditional control strategies, the robustness of VSI is insufficient. In response to the above problems, a novel robust control scheme for VSI in the microgrid based on H∞ hybrid sensitivity is proposed in this study. The grid-side interference during the VSI operation is taken as the variable, and the sensitivity function is designed to build a H∞ robust voltage controller for VSI. In addition, an adaptive virtual impedance group is designed to further improve the voltage control robustness under a variety of operation conditions. Finally, comparative simulation experiments are carried out to verify the anti-interference ability of the proposed control strategy under different working conditions.

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