NDLI: Research on the dynamic frequency characteristic of large-scale power grid considering the action of power system splitting and load shedding

Content Provider	IEEE Xplore Digital Library
Author	Xu Xialing Xi Jianghui Li Yong Xu Youping Bi Ruyu Liu Hui Lin Tao Ye Jing
Copyright Year	2014
Description	Author affiliation: Central China Branch of Electr. Power Dispatching Center, Wuhan, China (Xu Xialing; Xi Jianghui; Li Yong; Xu Youping; Bi Ruyu; Liu Hui; Lin Tao; Ye Jing)
Abstract	The dynamic frequency characteristic of power system is a significant index for power system operation, and research on the dynamic frequency characteristic of power system is the basis of many important design works such as the design of under frequency load shedding scheme. With the AC and DC ultra-high voltage (UHV) networking and the expanding of the scale of power grid, the economy of power system has been greatly improved, while the ability of resisting disturbance being weakened. Since the frequency deviation has great impact on many aspects of power system, it is of great urgency and necessity to analysis and control the dynamic frequency characteristic of large-scale power grid after disturbance. Based on the analysis of the dynamic frequency characteristic of large-scale power grid, this paper firstly studies the factors which influence the dynamic frequency characteristic of multi-machine power system, and the method of parameter aggregation of dynamic frequency characteristics. Secondly, this paper analyzes the effect of the action of power system splitting on power system dynamic frequency characteristic, and the adaptability of power system under frequency load shedding(UFLS) after the action of power system splitting. Finally, based on a regional power grid as the test case, the correctness and effectiveness of the proposed parameter aggregation method of power system dynamic frequency characteristic is verified by comparing the theoretical calculation value of the dynamic frequency characteristic after specific disturbance with the simulation result of power system simulation software under the same circumstance. On the basis of the previous researches, the foundation for the further study on optimization of under frequency load shedding scheme is proposed.
Starting Page	103
Ending Page	108
File Size	692444
Page Count	6
File Format	PDF
ISBN	9781479950324
DOI	10.1109/POWERCON.2014.6993533
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system dynamics Generators Power system stability Time-frequency analysis Frequency modulation Stability criteria large-scale power grid dynamic frequency characteristic power system splitting power system load shedding
Content Type	Text
Resource Type	Article

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