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所属单位：自动化学院

发表刊物：Conf Proc IEEE Appl Power Electron Conf Expo APEC

摘要：When a grid-connected inverter is connected to a weak grid, the system may be instable. An adaptive active damper can be connected to the point of common coupling (PCC), which can automatically regulate a virtual resistor to the critical value to stabilize the system. Furthermore, a harmonic-current-reference compensation method is adopted to make the active damper more accurately simulate the virtual resistor in a wide frequency range. This paper investigates the harmonic-current-reference compensation for the stationary α-β frame, synchronous d-q frame, and decoupled synchronous d-q frame-controlled three-phase adaptive active damper. With the proposed method, the active damper controls the active and reactive power directly and improves the stability of the grid-connected inverters under weak grid at the same time. Simulation tests on the system of a 10-kVA three-phase grid-connected inverter and a 3-kVA active damper is carried out to verify the effectiveness of the proposed control scheme of the active damper. © 2019 IEEE.

是否译文：否

发表时间：2019-05-24

合写作者：Lin, Zhiheng

通讯作者：阮新波