兰州工业学院学报
蘭州工業學院學報
란주공업학원학보
Journal of Lanzhou Institute of Technology
2014年
6期
32-36
,共5页
配电网%无功补偿%优化规划%禁忌搜索算法
配電網%無功補償%優化規劃%禁忌搜索算法
배전망%무공보상%우화규화%금기수색산법
distribution network%reactive power compensation%optimal planning%Taboo search
针对现阶段中国配电网无功补偿问题,提出了一种改进邻域搜索范围的禁忌搜索算法来确定并联电容器的安装位置和补偿容量,以此提高电压质量和降低系统有功损耗。采用电压合格目标函数搜索满足电压约束条件的初始解,使之在电压可行范围内寻优,然后以减少的有功网损最大为目标函数,从而得到全局最优解,并以未来24 h负荷预测曲线为背景确定了电容器的投切时刻。算例表明,提出的改进算法是可行和有效的。
針對現階段中國配電網無功補償問題,提齣瞭一種改進鄰域搜索範圍的禁忌搜索算法來確定併聯電容器的安裝位置和補償容量,以此提高電壓質量和降低繫統有功損耗。採用電壓閤格目標函數搜索滿足電壓約束條件的初始解,使之在電壓可行範圍內尋優,然後以減少的有功網損最大為目標函數,從而得到全跼最優解,併以未來24 h負荷預測麯線為揹景確定瞭電容器的投切時刻。算例錶明,提齣的改進算法是可行和有效的。
침대현계단중국배전망무공보상문제,제출료일충개진린역수색범위적금기수색산법래학정병련전용기적안장위치화보상용량,이차제고전압질량화강저계통유공손모。채용전압합격목표함수수색만족전압약속조건적초시해,사지재전압가행범위내심우,연후이감소적유공망손최대위목표함수,종이득도전국최우해,병이미래24 h부하예측곡선위배경학정료전용기적투절시각。산례표명,제출적개진산법시가행화유효적。
Aiming at the problem of distribution network reactive power compensation in China, a Taboo search-ing algorithm which can improve the neighborhood searching is proposed to determine the optimal location and the size of shunt capacitors on distributed system, improve the voltage profile and reduce the active power loss.In this paper, voltage qualified objective function is used to search an initial solution that meets the voltage con-straints so that it is feasible in practicable voltage range, then the global optimum solution can be got when taking the reduced maximum of active power loss as objective function.And capacitor switching can be confirmed by set-ting the background of load prediction curve in coming 24 hours.The flow charts and the examples given in this paper show that the improved algorithm is feasible and effective.