计及保护信息的电力系统暂态稳定裕度解析算法

doi:10.19595/j.cnki.1000-6753.tces.190116

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摘要电力系统暂态稳定裕度与故障因素息息相关,保护动作信息包含故障类型、故障位置以及故障持续时间等有效信息。该文提出一种计及保护信息的暂态稳定裕度解析算法。首先,计算不对称短路的附加阻抗,建立含附加阻抗的多机系统网络简化模型。然后,将转子运动方程等效为单机无穷大母线系统形式,提出发电机聚合功角的分段模型,在此基础上,推导暂态稳定裕度解析表达式。利用在线获取的保护动作信息,快速计算故障后系统的暂态稳定裕度,并通过求取暂态稳定裕度的偏导,分别分析不对称故障下故障位置和故障持续时间对暂态稳定裕度的影响。最后,在四机两区系统和新英格兰系统中进行仿真分析,仿真结果证明了该方法的准确性和有效性。

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	唐俊刺

关键词 ：暂态稳定裕度, 不对称故障, 功角分段模型, 解析法, 保护信息

Abstract：The transient stability margin of power system is closely related to the fault factors. The protection information includes effective information such as fault type, fault location and fault duration. This paper proposes an analytical method for calculating transient stability margin considering protection information. Firstly, the additional impedance of unbalanced fault is calculated, and the simplified model of multi-machine system network with additional impedance is established. Then, the rotor motion equation is equivalent to the one-machine infinite-bus system, and the piecewise models of generator aggregate power angles are further put forward. On this basis, the analytical expression of transient stability margin is derived. The transient stability margin of power system after fault can be quickly calculated by the protection information obtained online. And the effects of fault location and fault duration on the stability margin under unbalanced fault are analyzed by calculating the partial derivative of the stability margin expression. Finally, the simulations are carried out in the four-machine two-area system and the New England system, respectively. The accuracy and effectiveness of the proposed method are verified by the simulation results.

Key words： Transient stability margin unbalanced fault the piecewise models of generator angles analytical method protection information

收稿日期: 2019-01-28 出版日期: 2020-02-12

PACS:

TM712

基金资助:国家自然科学基金（51637005）、中央高校基本科研业务费专项资金（2018MS006）和国家电网公司科技项目（SGTYHT/17-JS-199）资助

通讯作者: 王彤女,1985年生,博士,副教授,研究方向为新能源电力系统稳定分析与控制,暂态稳定分析、评估与紧急控制。E-mail：hdwangtong@126.com

作者简介: 刘九良男,1994年生,硕士研究生,研究方向为暂态稳定分析、评估与紧急控制。E-mail：1207762256@qq.com

引用本文:

刘九良, 王彤, 朱劭璇, 王增平, 唐俊刺. 计及保护信息的电力系统暂态稳定裕度解析算法[J]. 电工技术学报, 2020, 35(3): 542-552. Liu Jiuliang, Wang Tong, Zhu Shaoxuan, Wang Zengping, Tang Junci. An Analytic Method for Power System Transient Stability Margin Considering Protection Information. Transactions of China Electrotechnical Society, 2020, 35(3): 542-552.

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[1] Zweigle G C, Venkatasubramanian V M.Transient instability mitigation for complex contingencies with computationally constrained cost-based control[J]. IEEE Transactions on Smart Grid, 2016, 7(4): 1961-1969.
[2] 王振浩, 张明泽, 杜虹锦, 等. 考虑柔性直流落点约束的最优主动解列断面搜索算法[J]. 电工技术学报, 2017, 32(17): 57-66.
Wang Zhenhao, Zhang Mingze, Du Hongjin, et al.A searching algorithm for optimal controlled islanding surfaces considering VSC-HVDC terminal constraint[J]. Transactions of China Electrotechnical Society, 2017, 32(17): 57-66.
[3] 顾雪平, 李少岩, 周光奇, 等. 计及特级负荷恢复的网架重构分时段全局优化方法[J]. 电工技术学报, 2017, 32(7): 138-149.
Gu Xueping, Li Shaoyan, Zhou Guangqi, et al.Global optimization by multi-time-stage coordination for network reconfiguration considering vital load restoration[J]. Transactions of China Electrotechnical Society, 2017, 32(7): 138-149.
[4] 姜涛, 张明宇, 崔晓丹, 等. 电力系统静态电压稳定域边界快速搜索的优化模型[J]. 电工技术学报, 2018, 33(17): 4167-4179.
Jiang Tao, Zhang Mingyu, Cui Xiaodan, et al.A novel optimization model to explore static voltage stability region boundary in bulk power systems[J]. Transactions of China Electrotechnical Society, 2018, 33(17): 4167-4179.
[5] 韦肖燕, 李欣然, 钱军, 等. 采用储能电源辅助的暂态稳定紧急控制方法[J]. 电工技术学报, 2017, 32(18): 292-306.
Wei Xiaoyan, Li Xinran, Qian Jun, et al.Power system transient stability emergency control method assisted by energy storage[J]. Transactions of China Electrotechnical Society, 2017, 32(18): 292-306.
[6] Wang Songyan, Yu Jilai, Zhang Wei.Transient stability assessment using individual machine equal area criterion part II: stability margin[J]. IEEE Access, 2018, 6: 38693-38705.
[7] 陈厚合, 王长江, 姜涛, 等. 基于投影能量函数和Pin-SVM的电力系统暂态稳定评估[J]. 电工技术学报, 2017, 32(11): 67-76.
Chen Houhe, Wang Changjiang, Jiang Tao, et al.Transient stability assessment in bulk power grid using projection energy function and support vector machine with pinball loss[J]. Transactions of China Electrotechnical Society, 2017, 32(11): 67-76.
[8] 胡臻, 李欣然, 刘光晔, 等. 基于稳定影响度指标的电压稳定脆弱点分析[J]. 电工技术学报, 2017, 32(7): 150-157.
Hu Zhen, Li Xinran, Liu Guangye, et al.Analysis of voltage fragility area based on the stability influence index[J]. Transactions of China Electrotechnical Society, 2017, 32(7): 150-157.
[9] Sun Qiuye, Huang Bonan, Li Dashuang, et al.Optimal placement of energy storage devices in microgrids via structure preserving energy function[J]. IEEE Transactions on Industrial Informatics, 2017, 12(3): 1166-1179.
[10] Siddiqui S A, Verma K, Niazi K R, et al.Real-time monitoring of post-fault scenario for determining generator coherency and transient stability through ANN[J]. IEEE Transactions on Industry Applications, 2017, 54(1): 685-692.
[11] 朱蜀, 刘开培, 秦亮, 等. 电力电子化电力系统暂态稳定性分析综述[J]. 中国电机工程学报, 2017, 37(14): 3948-3962, 4273.
Zhu Shu, Liu Kaipei, Qin Liang, et al.Analysis of transient stability of power electronics dominated power system: an overview[J]. Proceedings of the CSEE, 2017, 37(14): 3948-3962, 4273.
[12] 杨帅, 王双杰. 含有分布式电源电网的故障特性影响因素分析[J]. 电气技术, 2015, 16(4): 22-25.
Yang Shuai, Wang Shuangjie.Analysis of the influence factors of fault characteristics of the power network with distributed generations[J]. Electrical Engineering, 2015, 16(4): 22-25.
[13] Ju Ping, Li Hongyu, Gan Chun, et al.Analytical assessment for transient stability under stochastic continuous disturbances[J]. IEEE Transactions on Power Systems, 2018, 33(2): 2004-2014.
[14] 沈超, 方勇杰. 计及发电功率随机性的暂态稳定裕度概率分布计算[J]. 电力系统自动化, 2013, 37(19): 41-48.
Shen Chao, Fang Yongjie.Calculation of transient stability margin distribution under random power injection conditions[J]. Automation of Electric Power Systems, 2013, 37(19): 41-48.
[15] 崔凯, 房大中, 钟德成. 电力系统暂态稳定性概率评估方法研究[J]. 电网技术, 2005, 29(1): 44-49.
Cui Kai,Fang Dazhong,Zhong Decheng.Study on probabilistic assessment method for power system transient stability[J]. Power System Technology, 2005, 29(1): 44-49.
[16] 周海强, 鞠平, 薛禹胜, 等. 基于拟哈密顿理论的随机电力系统暂态稳定性分析[J]. 电力系统自动化, 2016, 40(19): 9-14.
Zhou Haiqiang, Ju Ping, Xue Yusheng, et al.Transient stability analysis of stochastic power system based on quasi-hamiltonian system theory[J]. Automation of Electric Power Systems, 2016, 40(19): 9-14.
[17] 汪小明, 刘涤尘, 黄涌, 等. 基于能量函数法的电网暂态稳定性分析[J]. 电网技术, 2011, 35(8): 114-118.
Wang Xiaoming, Liu Dichen, Wu Jun, et al.Energy function-based power system transient stability analysis[J]. Power System Technology, 2011, 35(8): 114-118.
[18] 任先成, 李威, 薛禹胜, 等. 互联电网失稳模式演化现象及其影响因素分析[J]. 电力系统自动化, 2013, 37(21): 9-16.
Ren Xiancheng, Li Wei, Xue Yusheng, et al.Unstable modes evolution and its influencing factors analysis in interconnected power grids[J]. Automation of Electric Power Systems, 2013, 37(21): 9-16.
[19] Xue Yusheng.The mechanisms of unstable modes evolving with fault clearing time[C]//Proceedings of the 16th Symposium on Electrical Power Engineering, Kaohsiung, Taiwan, China, 1995: 522-527.
[20] 刘强, 薛禹胜, 董朝阳, 等. 线路故障位置对暂态稳定性的异常影响及其机理[J]. 电力系统自动化, 2007, 31(18): 1-5.
Liu Qiang, Xue Yusheng, Dong Zhaoyang, et al.Abnormal effects of line fault location on transient stability and its mechanism[J]. Automation of Electric Power Systems, 2007, 31(18): 1-5.
[21] 陈长胜, 马世英, 郑超, 等. 基于暂态偏差能量的紧急控制效果超前评估方法[J]. 中国电机工程学报, 2018, 38(17): 5118-5125, 5308.
Chen Changsheng, Ma Shiying, Zheng Chao, et al.The advance evaluation of emergency control based on transient deviation energy[J]. Proceedings of the CSEE, 2018, 38(17): 5118-5125, 5308.
[22] 李庚银. 电力系统分析基础[M]. 北京: 机械工业出版社, 2011.
[23] 薛禹胜. 运动稳定性量化理论[M]. 南京: 江苏科学出版社, 1999.
[24] 姜宪国, 王增平, 李琛. 基于稀疏PMU布点的广域保护全网时间同步方案[J]. 电力自动化设备, 2012, 32(9): 122-127.
Jiang Xianguo, Wang Zengping, Li Chen.Whole-network time synchronization of wide-area protection based on sparse PMU placement[J]. Electric Power Automation Equipment, 2012, 32(9): 122-127.
[25] 孔令号, 焦彦军, 戴志辉. 基于灰色关联度的站域保护原理[J]. 电网技术, 2014, 38(8): 2274-2279.
Kong Linghao, Jiao Yanjun, Dai Zhihui.A new substation area protection principle based on gray correlation degree[J]. Power System Technology, 2014, 38(8): 2274-2279.
[26] 殷志良. 基于IEC 61850的变电站过程总线通信的研究[D]. 北京: 华北电力大学, 2005.
[27] 林富洪, 王增平, 曾惠敏. 基于测距函数相位特性的T型高压线路故障定位原理[J]. 中国电机工程学报, 2011, 31(13): 107-113.
Lin Fuhong, Wang Zengping, Zeng Huimin.A novel fault location algorithm based on phase characteristics of fault location function for three-terminal transmission lines[J]. Proceedings of the CSEE, 2011, 31(13): 107-113.
[28] 王增平, 林富洪. 基于同步相量测量的N端输电线路故障测距新算法[J]. 电网技术, 2010, 34(5): 154-160.
Wang Zengping, Lin Fuhong.A new fault location algorithm for N-terminal transmission lines based on synchronized phasor measurement[J]. Power System Technology, 2010, 34(5): 154-160.
[29] 常鲜戎, 赵书强. 电力系统暂态过程[M]. 北京: 机械工业出版社, 2010.