A Novel H∞ Robust Control Strategy for Voltage Source Inverter in Microgrid
| Autor: | Jie zhang, Hongtao Shi, Yifan Li, Jian Zhou, Zhongnan Jiang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Economics and Econometrics
Renewable Energy Sustainability and the Environment Computer science H∞ robust control Energy Engineering and Power Technology mixed sensitivity General Works Fuel Technology Control theory voltage stability adaptive virtual impedance group parameter perturbation Microgrid Robust control Voltage source inverter |
| Zdroj: | Frontiers in Energy Research, Vol 9 (2021) |
| DOI: | 10.3389/fenrg.2021.731432/full |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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