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  1. Analysis of the Influence of Renewable Generator Frequency Endurance Capability on Low-Frequency Load Shedding: A Hunan Case Study.Yang-Wu Shen, Ding Wang, Hao Chen, Jian Zuo, Min Xu & Wei Cao - 2020 - Complexity 2020:1-9.
    With the rapid development of renewable generators such as distributed photovoltaic and profound changes of the power structure, this paper analyzes the frequency characteristics of the power system with high penetration of renewable generations in the process of low-frequency load shedding and discusses the influence of the distributed renewable generator frequency endurance capabilities on the implementation effect of low-frequency load shedding in detail. Finally, the influences of the distributed renewable generator frequency endurance capability and the capacities of the distributed renewable (...)
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  • Harmonic Modeling and Experimental Validation of the Converters of DFIG-Based Wind Generation System.Yang-Wu Shen, Ding Wang, Xiang-Tian Deng, Qing Li & Jian Zuo - 2019 - Complexity 2019:1-13.
    The double-fed induction wind generator- based wind generation system contains power electronic converters and filter capacitor and inductor, which will bring about high-frequency harmonics under the influence of controllers. Aiming at this problem, this paper studies the relation between the output current and the harmonic source at grid-side and rotor-side converters based on their control features in the DFIG system. Furthermore, the harmonic equivalent models of these two converters are built, and the influence of different factors on harmonic features is (...)
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  • Investigation of Var Compensation Schemes in Unbalanced Distribution Systems.Yinuo Huang, Licheng Wang & Kai Wang - 2019 - Complexity 2019:1-13.
    Distributed rooftop photovoltaic generators prospered distributed generation in recent years. Certain randomness of rooftop PV connection may lead to significant PV power imbalance across three phases, especially in low-voltage distribution systems. Due to interphase line coupling, traditional Var compensation methods which typically have competent voltage regulation performance may become less effective in such PV imbalance scenarios. In this paper, the limitation of traditional Var compensation methods in voltage regulation with unbalanced PV power integration is demonstrated and comprehensively analyzed. After describing (...)
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