考虑安全性和经济性的连锁故障预防控制策略

doi:10.12204/j.issn.1000-7229.2022.05.011

电力建设 ›› 2022, Vol. 43 ›› Issue (5): 100-108.doi: 10.12204/j.issn.1000-7229.2022.05.011

考虑安全性和经济性的连锁故障预防控制策略

邓慧琼¹^,²(), 罗杰¹^,²^,³(), 王晓铭¹^,²(), 刘昊¹^,²(), 李培强¹^,²(), 李晨晨¹^,²()

1.福建工程学院电子电气与物理学院,福州市 350108
2.智能电网仿真分析与综合控制福建省高校工程研究中心(福建工程学院),福州市 350108
3.国网永安市供电公司,福建省永安市 366000

收稿日期:2021-12-02 出版日期:2022-05-01 发布日期:2022-04-29
通讯作者: 邓慧琼 E-mail:1123233466@qq.com;550461238@qq.com;3417370895@qq.com;414299642@qq.com;lpqcs@hnu.edu.cn;1409469958@qq.com
作者简介:罗杰(1994),男,硕士研究生,主要研究方向为电力系统安全分析与控制,E-mail: 550461238@qq.com。
王晓铭(1998),男,硕士研究生,主要研究方向为电网连锁故障分析,E-mail: 3417370895@qq.com。
刘昊(1995),男,硕士研究生,主要研究方向为电力系统扰动定位,E-mail: 414299642@qq.com。
李培强(1975),男,教授,博士,主要研究方向为电力系统运行与控制及负荷建模,E-mail: lpqcs@hnu.edu.cn。
李晨晨(1995),女,硕士研究生,主要研究方向为电力系统安全分析与控制,E-mail: 1409469958@qq.com。
基金资助:
福建省自然科学基金资助项目(2018J01622)

Preventive Control Strategy of Cascading Failure Considering Security and Economy

DENG Huiqiong¹^,²(), LUO Jie¹^,²^,³(), WANG Xiaoming¹^,²(), LIU Hao¹^,²(), LI Peiqiang¹^,²(), LI Chenchen¹^,²()

1. School of Electronic, Electrical Engineering and Physics, Fujian University of Technology, Fuzhou 350108, China
2. Fujian University Engineering Research Center for Simulation Analysis and Integrated Control of Smart Grid(Fujian University of Technology), Fuzhou 350108, China
3. State Grid Yong’an Electric Power Company, Yong’an 366000, Fujian Province, China

Received:2021-12-02 Online:2022-05-01 Published:2022-04-29
Contact: DENG Huiqiong E-mail:1123233466@qq.com;550461238@qq.com;3417370895@qq.com;414299642@qq.com;lpqcs@hnu.edu.cn;1409469958@qq.com
Supported by:
National Natural Science Foundation of Fujian Province(2018J01622)

摘要/Abstract

摘要：

为阻止源头性故障引发连锁故障的安全问题,文章提出一种考虑安全性和经济性的连锁故障预防控制策略。首先,根据继电保护的动作特性给出一种判别连锁故障的数学形式。其次,以电网安全裕度和发电运行成本分别评价系统的安全性和经济性,以支路脆弱性评估方法选取初始故障,构建了针对不同初始故障作用下的连锁故障预防控制模型。该模型是一种双层优化的数学模型,内层模型采用粒子群算法求解出电网安全裕度;外层模型采用改进的多目标粒子群算法求解出最小化发电成本和最大化电网安全裕度。最后,利用模糊集理论对计算出的Pareto集合进行评估,确定最优发电机出力策略。以IEEE 39节点系统和IEEE 118节点系统为例进行仿真研究,验证了所提方法的可行性。

关键词: 电力系统, 连锁故障, 安全性, 经济性, 预防控制

Abstract:

To prevent the security problem of cascading failures caused by source faults, this paper proposes a preventative control strategy of cascading failure considering security and the economy. Firstly, according to the action characteristics of the relay protection, a mathematical form is given to discriminate the cascading failure. Secondly, the security and economy of the system are evaluated in terms of power grid security margin and operating cost of power generation, respectively. The initial failure is selected by the branch vulnerability assessment method to construct a preventive control model of cascading failure for different initial failures actions. The model is a two-layer optimization mathematical model. The inner model is solved by the particle swarm optimization algorithm to get the power grid security margin. The outer model is solved by the improved multi-objective particle swarm optimization algorithm to minimize generation cost and maximize power grid security margin. Finally, the calculated Pareto set is evaluated using fuzzy set theory to determine the optimal output strategy of generators. Simulation studies are conducted with the IEEE 39-bus system and IEEE 118-bus system to verify the feasibility of the proposed method in this paper.

Key words: power system, cascading failure, security, economy, preventive control

中图分类号:

TM711

邓慧琼, 罗杰, 王晓铭, 刘昊, 李培强, 李晨晨. 考虑安全性和经济性的连锁故障预防控制策略[J]. 电力建设, 2022, 43(5): 100-108.

DENG Huiqiong, LUO Jie, WANG Xiaoming, LIU Hao, LI Peiqiang, LI Chenchen. Preventive Control Strategy of Cascading Failure Considering Security and Economy[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(5): 100-108.

图/表 12

图1 电网对于连锁故障的安全裕度

Fig.1 Security margin of the power grid for cascading failure

图2 算法流程

Fig.2 Flowchart of the algorithm

表1 IEEE 39节点的聚类中心

Table 1 Cluster center of IEEE 39 bus

表2 IEEE 39节点的脆弱支路

Table 2 Vulnerable branches of IEEE 39 bus system

图3 IEEE 39节点的POF

Fig.3 POF from IEEE 39 bus system

表3 IEEE 39节点的预防控制优化结果

Table 3 Optimization results of preventive control in IEEE 39 bus system MW

表4 预防控制前后对比结果

Table 4 Comparison results before and after preventive control pu

表5 IEEE 118节点的聚类中心

Table 5 Cluster center of IEEE 118 bus system

表6 IEEE 118节点的脆弱支路

Table 6 Vulnerable branches of IEEE 118 bus system

图4 IEEE 118节点的POF

Fig.4 POF from IEEE 118 bus system

表7 IEEE 118节点的预防控制优化结果

Table 7 Optimization results of preventive control in IEEE 118 bus system MW

表8 预防控制前后对比结果

Table 8 Comparison results before and after preventive control pu

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考虑安全性和经济性的连锁故障预防控制策略

Preventive Control Strategy of Cascading Failure Considering Security and Economy

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