考虑负荷转移的电网检修计划优化研究  

Research of the Maintenance Scheduling Optimization Considering the Load Transfer

作　　者：张慧超[1] 吴骏 刘靖辉[1] 

机构地区：[1]中国计量科学研究院,北京市昌平区102200 [2]北京华建网源电力设计研究所,北京市昌平区102209

出　　处：《智能电网》2015年第8期711-716,共6页Smart Grid

摘　　要：当电网处于检修状态时,负荷转移、线路负载较重等情况使电网处于更加脆弱的状态,科学地估量电网检修时段的风险大小对电网的可靠、经济运行意义重大。鉴于负荷转移路径选择对电网和用户风险水平均有影响,在考虑电网运行风险的同时加入负荷转移方面的因素,通过将风险进行经济性量化的方法,建立以检修引起的综合风险费用最小为目标函数,并考虑相关约束条件的优化模型,进一步降低检修时期电网的运行风险。考虑该模型存在多方面约束条件的特点,利用改进的粒子群算法求取最优解。通过Matlab软件编程,以6母线RBTS系统为案例进行求解,计算结果表明,模型能有效地通过优化检修计划降低电网检修时期的风险值。Considering of the load transfer and heavier load of transmission lines, power grid is more fragile during the maintenance time compared with normal state, therefore, estimating the risk of power grid during the maintenance time scientifically is of great significance to reliability and economy of power grid. As different load transmission paths influence the risk level of power grid and users, how to choose more scientific load transmission path is considered as well as the risk of power grid. For further reducing the risk level of power system operation during maintenance time, the model’s objective function is the minimum of the comprehensive risk cost caused by maintenance, the optimization model of the related constraint conditions are taking into account. As many constraint conditions exist within the power grid, this paper prefers the improved particle swarm algorithm to achieve a better optimal solution. By means of software programming, the analysis of the RBTS system example shows the model here can effectively reduce the risk level of power grid during maintenance time via getting optimized maintenance plan.

关 键 词：检修计划优化 电网风险 负荷转移 改进的粒子群算法 

分 类 号：TM73[电气工程—电力系统及自动化]