Virtual Synchronous Motor Control Strategy for Interfacing Converter in Hybrid AC/DC Micro-grid

被引：0
|
作者：
Li F. [1 ]
Qin W. [1 ]
Ren C. [1 ]
Wang Q. [1 ]
Han X. [1 ]
Wang J. [2 ]
机构：
[1] Shanxi Key Laboratory of Power System Operation and Control, Taiyuan University of Technology, Taiyuan, 030024, Shanxi Province
[2] Electric Power Research Institute, State Grid Shanxi Electric Power Company, Taiyuan, 030001, Shanxi Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 13期
基金：
中国国家自然科学基金;
关键词：
Hybrid AC/DC micro-grid; Interfacing converter between AC bus and DC bus; Small-signal model; Virtual synchronous motor;
D O I：
10.13334/j.0258-8013.pcsee.181156
中图分类号：
学科分类号：
摘要：
To solve the problems of small inertia and damping for interfacing converter between AC bus and DC bus with droop control in hybrid AC/DC micro-grid, a virtual synchronous motor control strategy for the interfacing converter was proposed. The dynamic characteristic of frequency, which was similar to the synchronous motors, was combined with the steady-state characteristics of droop control for the interfacing converter. Anti-disturbance characteristics of AC frequency and DC voltage were improved. Based on the analysis of instantaneous power balance characteristics in hybrid AC/DC micro-grid, the control strategy was designed, in which inertia was provided by using the absorbing-releasing characteristics of various sources and loads in AC and DC sub-grids. In order to design the control parameters, small-signal model was built and effects of critical parameters, including rotating inertia, damping coefficient and DC droop coefficient, on stability and dynamic response of frequency and DC voltage during active power changing were analyzed. The effectiveness and functions were verified based on Matlab/Simulink and dSPACE platform. © 2019 Chin. Soc. for Elec. Eng.
引用
收藏
页码：3776 / 3787
页数：11
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