A Decentralized Strategy for Frequency-based Load as Regulation

2019 4th Asia Conference on Power and Electrical Engineering

能源学;电工学

Li, Yaping^1 ; Huang, Mingyu^2 ; Mao, Wenbo^1 ; Yin, Liang^2

China Electric Power Research Institute, Nanjing

210003, China^1

State Grid Ningxia Electric Power Co.Ltd., Yinchuan

750001, China^2

关键词: DC Block;    Demand side resources;    Frequency changes;    Frequency regulations;    Operating parameters;    Physical model;    Power balance;    Primary frequency regulation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/486/1/012136/pdf
DOI  :  10.1088/1757-899X/486/1/012136

来源: IOP

【 摘 要 】

In order to keep frequency stable after UHV DC block fault, demand side resources are needed. Among these, frequency-based load can automatically monitor the frequency change without affecting the user's power consumption experience and can quickly adjust the operating parameters to reduce its own power consumption. Thus, frequency-based load can play a role similar to the primary frequency regulation. In this paper, several physical models of typical frequency-based loads were established and the frequency regulation characteristics are analyzed. Based on this, a decentralized strategy of frequency-based load was proposed. The simulation results show that the grouping decentralized strategy can effectively avoid the "over-control" or "under-control" phenomenon, which helps to quickly maintain the power balance and frequency stability of the grid.