基于改进鲸鱼优化算法的分布式电源接入配电网继电保护的整定优化研究
CSTR:
作者:
作者单位:

(国网山西省电力公司运城供电公司,山西 运城 044000)

通讯作者:

樊群才(1970—),男,硕士,高级工程师,主要从事继电保护专业管理、继电保护整定计算方面的研究;E?mail:lwl20120724@126.com

中图分类号:

TM732

基金项目:

国网山西省电力公司科技项目(5205M02000xb)


Research on relay protection setting optimization of distribution network connected with distributed power supply based on improved whale optimization algorithm
Author:
Affiliation:

(Yuncheng Power Supply Company,State Grid Shanxi Electric Power Company,Yuncheng 044000,China)

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    摘要:

    分布式电源因为具有灵活性高、成本低、绿色低碳等优点而被越来越多地接入配电网,但是由于其改变了原有配电网的潮流拓扑结构,也给传统的电流差动保护提出了新的要求。首先分析大量分布式电源的接入对配电网继电保护的影响;随后考虑到继保的速动性、灵敏性要求,引入收敛速度较快的鲸鱼优化算法,并引入列文伯格马奎特(Levenberg?Marquadt,LM)算法对其进行改进;最后对分布式电源接入配电网时的电流保护整定值进行优化,用收敛速度较快的鲸鱼优化算法进行全局寻优,为避免陷入局部最优而转入LM算法进一步求解。实验分析结果表明,LM算法改进的鲸鱼优化算法的引入可以加快收敛速度,提高继保装置的速动性,适用于分布式电源接入配电网时的继保整定优化。

    Abstract:

    Distributed generation is increasingly being connected to the distribution network due to its advantages of high flexibility, low cost, green and low carbon. However, because it changes the topology of the original distribution network, it also poses new requirements for traditional current differential protection. Firstly, the impact of the access of a large number of distributed generations on relay protection in the distribution network is analyzed. Then, considering the requirements of relay protection for quickness and sensitivity, the Whale optimization algorithm with fast convergence speed is introduced, and the LM algorithm is introduced to improve it. Finally, the setting value for current protection is optimized when the distributed generation is connected to the distribution network. The Whale optimization algorithm with fast convergence speed is used for global optimization, and to avoid falling into a local optimum, it switches to the LM algorithm for further solution. Experimental analysis results show that the introduction of the Whale optimization algorithm improved by the LM algorithm can accelerate the convergence speed and improve the quickness of the relay protection device, which is suitable for relay protection setting optimization when distributed generation is connected to the distribution network.

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樊群才,胡 笳,廖艳萍,等.基于改进鲸鱼优化算法的分布式电源接入配电网继电保护的整定优化研究[J].电力科学与技术学报,2024,39(2):74-79.
FAN Quncai, HU Jia, LIAO Yanping, et al. Research on relay protection setting optimization of distribution network connected with distributed power supply based on improved whale optimization algorithm[J]. Journal of Electric Power Science and Technology,2024,39(2):74-79.

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  • 在线发布日期: 2024-05-29
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