Wide-area measurement and early warning system for wide-band oscillations in “double-high” power systems
MA Ningning1, XIE Xiaorong1, TANG Jian2, CHEN Lei1
1. State Key Lab of Control and Simulation of Power Systems and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China; 2. State Grid East Inner Mongolia Electric Power Supply Co., Ltd., Hohhot 010010, China
Abstract：The wide-band oscillation problem caused by the high penetration of renewable energy sources and the high proportion of power electronic equipment, “double-high” systems, seriously affects normal power equipment operation and power system stability. Such systems require on-line monitoring and analyses of the multi-mode and time-varying wide-band oscillation frequency. Traditional wide-area measurement systems (WAMS) can monitor low-frequency oscillations in power grids in real-time. However, they cannot monitor wide-band electromagnetic oscillations. This paper presents a wide-area measurement and early warning system (WAMWS) for monitoring wide-band oscillations in “double-high” power systems. This system has all the functions in the existing WAMS while monitoring wide-band oscillations in “double-high” power systems. The warning system provides wide-band state estimates, oscillation source identification, and security and stability evaluations of the wide-band oscillations. The effectiveness of this system for monitoring wide-band oscillations is verified in simulations. Finally, this paper considers applications of WAMWS.
马宁宁, 谢小荣, 唐健, 陈垒. “双高”电力系统宽频振荡广域监测与预警系统[J]. 清华大学学报（自然科学版）, 2021, 61(5): 457-464.
MA Ningning, XIE Xiaorong, TANG Jian, CHEN Lei. Wide-area measurement and early warning system for wide-band oscillations in “double-high” power systems. Journal of Tsinghua University(Science and Technology), 2021, 61(5): 457-464.
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2021, Vol. 61 
