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Frequency Characteristics of Southwest Power Grid and Scheme of Over-Frequency Generator Tripping

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Shaorong Cai; Yuxuan Tao; Li Shen; Zhenlin Ni; Jianliang Gao; Wenju Liang
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Abstract:

Based on the single machine model, the key factors affecting the frequency response of the system are studied, the expressions of the initial frequency change rate and th...Show More

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Abstract:

Based on the single machine model, the key factors affecting the frequency response of the system are studied, the expressions of the initial frequency change rate and the maximum frequency deviation after large disturbance are derived, and the mechanism of improving the frequency stability of conventional units and new energy frequency response, DC frequency modulation, load frequency response, emergency control and other factors is analyzed. According to the frequency response characteristics of Southwest Power Grid, the over-frequency generator tripping scheme is designed from the aspects of high frequency generator tripping object, starting threshold, generator tripping capacity, etc., and the coordination principle of high cycle generator tripping, generator overspeed protection and low frequency load shedding is proposed. The effectiveness of the proposed scheme is verified by practical examples.
Published in: 2021 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia)
Date of Conference: 18-21 July 2021
Date Added to IEEE Xplore: 02 December 2021
ISBN Information:
DOI: 10.1109/ICPSAsia52756.2021.9621515
Conference Location: Chengdu, China
References is not available for this document.
Contents

I. Introduction

The frequency stability of power system reflects the balance of active power in the system. It is the basic condition for the safe and stable operation of the system, and the abnormal frequency will bring serious consequences to the safe operation of the generating unit and the power system and the users. Therefore, in order to ensure the security, stability and economic operation of power grid, it is necessary to deeply study the frequency characteristics of power grid, master the variation law of power grid frequency, and provide scientific basis for the formulation of power grid frequency control scheme [1] –[3].

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1.
ZHANG Donghui, HONG Chao, ZHOU Baorong et al., "Asynchronous interconnection system scheme for Yunnan Power Grid and the main grid of China Southern Power Grid [J]", Southern Power System Technology, vol. 8, no. 6, pp. 1-6, 2014.
Google Scholar
2.
WANG Yizhen, MA Shiying, WANG Qing et al., "Present status and developing trend of research on over frequency in isolated power grid [J]", Power System Technology, vol. 36, no. 12, pp. 165-169, 2012.
Google Scholar
3.
ZHANG Jianming, BI Tianshu, LIU Hui et al., "Review of frequency stability for islanded power system [J]", Power System Protection and Control, vol. 39, no. 11, pp. 149-154, 2011.
Google Scholar
4.
YANG Fan, ZHANG Zhiqiang and ZHAO Shuqiang, "Research on frequency stability control measures of the isolated grid operation of regional grid with small capacity[J]", Modern Electric Power, vol. 30, no. 5, pp. 64-68, 2013.
Google Scholar
5.
TENG Yufei, ZHANG Hua, TANG Fan et al., "Over-frequency and over-voltage risk of isolated small power grid in remote area and its suppression strategy[J]", Power System Protection and Control, vol. 43, no. 1, pp. 129-136, 2015.
Google Scholar
6.
ZHANG Zhiqiang, XU Youping, YUAN Rongxiang et al., "Frequency characteristics of power grid at sending end of split large-scale interconnected regional power grid and corresponding over-frequency generator-tripping scheme[J]", Power System Technology, vol. 39, no. 1, pp. 288-293, 2015.
Google Scholar
7.
ZHAO Qiang, ZHANG Li, WANG Qi et al., "Impact of load frequency characteristics on frequency stability of power system[J]", Power System Technology, vol. 35, no. 3, pp. 69-73, 2011.
Google Scholar
8.
JIN Na, LIU Wenying, CAO Yinli et al., "Influence on the grid frequency characteristic by the parameters of primary frequency modulation of large capacity generator units[J]", Power System Protection and Control, vol. 40, no. 1, pp. 91-95, 2012.
Google Scholar
9.
DENG Qian, LI Xingyuan and WEI Wei, "Optimization of over-speed protection controller for steam turbine and its influence on frequency of power grid[J]", Power System Technology, vol. 34, no. 12, pp. 50-56, 2010.
Google Scholar
10.
ZHANG Zhiqiang, XU Youping, YUAN Rongxiang et al., "Optimization of Over-frequency Generator-tripping Scheme in Sichuan Power Grid Adaptable to Multi-UHVDC Transmission Project[J]", Automation of Electric Power Systems, vol. 40, no. 2, pp. 141-145, 2016.
Google Scholar

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