微电网
计算机科学
频率调节
储能
电力系统
控制(管理)
功率(物理)
物理
人工智能
量子力学
作者
Huibin Wang,Lingjun Meng,Shuying Cheng,Haoqian Cui,Haixin Wang,Junyou Yang
摘要
The continuous access of renewable energy and distributed generation threatens the frequency security of microgrid. The frequency regulation capability of microgrid is greatly reduced. To improve the frequency stability of the microgrid based on energy storage, it is very important to adopt an appropriate frequency regulation method, which needs further research. Firstly, the principle of the virtual synchronous generator (VSG) is described, and the virtual power frequency and the virtual excitation controller are introduced. Thereafter, in order to improve the shortcomings of the traditional droop control, the frequency response is introduced to improve the droop control. Finally, the frequency regulation methods based on VSG, droop control, and improved droop control are simulated and compared. The results show that the frequency response link effectively improves the system stability. Among the three frequency regulation methods, the VSG performs the best frequency regulation speed as well as stability.
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