Frequency regulation strategy of a virtual synchronous generator-based microgrid considering the black start process

被引：0
|
作者：
Fu H. [1 ]
Liu G. [1 ]
Qi C. [2 ]
Xu Y. [1 ]
机构：
[1] Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao
[2] Baoding Power Supply Company, Baoding
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2020年 / 48卷 / 14期
基金：
中国国家自然科学基金;
关键词：
Double threshold-full adaptive frequency control; Microgrid black start; Microgrid inverter; Negative inertia; Virtual synchronous generator;
D O I：
10.19783/j.cnki.pspc.191062
中图分类号：
学科分类号：
摘要：
Considering the secondary oscillation period when a Virtual Synchronous Generator (VSG) is applied to microgrid frequency modulation, a double threshold-full adaptive frequency control strategy is proposed. The control strategy combines the adaptive model and the characteristics of negative inertia, establishes inertia of the new function model, and weakens the effect of damping. It simplifies the control structure while eliminating the secondary oscillation period of the frequency transient process. In order to solve the problem that the existing single control strategy is not suitable for the black start of a microgrid, a zero start and boost link is introduced on the premise of not affecting the start speed of the microgrid. This extends the application scope of this control strategy to the black start process of a microgrid. Simulation and experiment validate the correctness and effectiveness of the proposed method. © 2020, Power System Protection and Control Press. All right reserved.
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页码：59 / 68
页数：9
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