中国电力 ›› 2016, Vol. 49 ›› Issue (4): 88-92.DOI: 10.11930/j.issn.1004-9649.2016.04.088.05

• 电网 • 上一篇    下一篇

虑配电网电流保护约束的分布式电源准入容量研究

马晓博   

  1. 武汉大学 电气工程学院,湖北 武汉 430072
  • 收稿日期:2015-12-08 修回日期:2016-04-27 出版日期:2016-04-20 发布日期:2016-04-27
  • 作者简介:马晓博(1990-),女,河北沧州人,工学硕士,从事电力系统运行与控制、新能源接入研究。E-mail: xiaob_ma@163.com

Study on Maximum Penetration Level of Distributed Generation in Distribution Network by Considering Current Protection

MA Xiaobo   

  1. School of Electrical Engineering, Wuhan University, Wuhan 430072, China
  • Received:2015-12-08 Revised:2016-04-27 Online:2016-04-20 Published:2016-04-27

摘要: 分布式电源(DG)的接入改变了传统配电网的单电源辐射式供电模式,可能导致原有继电保护装置出现误动、拒动或无法识别故障的情况。为解决此问题,以配电网中DG的接入容量最大化为目标函数,配电网三段式电流保护正确动作为约束条件,建立了DG准入容量的优化模型。对于多个DG接入配电网的情况,采用小生境遗传算法求解模型。算例仿真验证了所提方法的正确性和有效性。

关键词: 配电网, 分布式电源, 电流保护, 最大准入容量, 小生境遗传算法

Abstract: Integration of distributed generation(DG) to the distribution network has significantly altered the traditional power supply fashion of single power source, which could possibly lead to the malfunction of the existing current protections. To solve the problem, an optimization model is established in this paper for calculating the penetration level of DG, in which the allowable maximum penetration level of DG is taken as objective function and the correct operation of current protection as constraints. Under the condition of multi-DGs, the mathematical model is realized based on niche genetic algorithm. Through the case study on actual distribution system, the correctness and effectiveness of the proposed method are verified.

Key words: distribution network, distributed generation, current protection, allowable maximum penetration level, niche genetic algorithm

中图分类号: