摘要
方向过电流保护的整定配合问题为非线性、多维约束和非凸的优化问题。提出了一种基于生物地理学算法的方向过电流保护优化配合模型。建立了以过电流保护的主保护动作时间总和最小为目标、考虑配合时间阶段、保护动作时间及起动电流等约束的优化模型,优化时间定值倍数和起动电流定值。然后说明了生物地理学算法的求解方法和求解流程,并利用该算法进行求解。最后在8节点系统中进行仿真分析,并与粒子群算法进行对比,说明了所提方法的正确性和有效性。
The coordination of directional overcurrent protection is nonlinear,multidimensional constrained and nonconvex optimization problem.A directional overcurrent protection optimization coordination model based on biogeography algorithm is proposed.An optimization model with the minimum sum of the primary protection operating time as the objective is established,considering the constraints of the coordination time interval,the protection operating time and the starting current,and the time multiplier setting and the plug setting are optimized.Then the solution method and solution flow of biogeography algorithm are explained and used to solve the model.Finally,the simulation analysis is carried out in an 8-node system,and compared with the particle swarm optimization algorithm,the correctness and effectiveness of the proposed method are illustrated.
作者
谢兵
夏阳
XIE Bing;XIA Yang(Zhejiang Zhongxin Power Engineering Construction Co.,Ltd.,Hangzhou 311201,China)
出处
《电气应用》
2019年第12期128-133,共6页
Electrotechnical Application
关键词
过电流保护
生物地理学算法
保护配合阶段
主保护动作时间
overcurrent protection
biogeography-based optimization
coordination time interval
primary protection operating time
