摘要
为了在配电环网中同时优化潮流和降低损耗,提出了一种新型移相变压器(PST)及其潮流优化控制模型。PST采用了双绕组变压器结构,比ST有更大的调压、移相、潮流调节范围。推导了PST在配电环网中进行潮流控制的规律,分析了计及PST时配电环网的有功损耗优化及其实现条件,提出了结合网络损耗旳潮流优化模型和PST的抽头算法。仿真结果表明,PST具有良好的潮流调节性能,能在保证电网安全稳定运行的前提下,同时实现潮流的合理分布与有功损耗优化,充分提高设备的利用率。相比其他灵活交流输电系统(FACTS)器件,低成本的PST能实现投资效益与运行经济性之间的均衡,应用前景广阔。
In order to simultaneously optimize the power flow and reduce the loss in the loop distribution network,a novel phase shifting transformer(PST)and its power flow optimization control model are proposed.PST adopts a double winding transformer structure,which has a larger voltage regulation,phase shift and flow regulation range than Sen transformer(ST).The power flow control law of PST in loop distribution network is analyzed.The optimization of the active loss and the realization conditions of the loop distribution network with PST are analyzed,and the power flow optimization model combined with the network loss and the tapped algorithm of PST are put forward.The simulation results show that PST has good performance of power flow adjustment,and can achieve the reasonable distribution of power flow and the lowest active power loss simultaneously on the premise of power grid safe and stable operation,which improves the utilization ratio of equipment.Compared with other FACTS devices,low cost PST can achieve a balance between investment benefit and operation economy,which has a wide application prospect.
作者
田翠华
游奕弘
费雯丽
詹隽
TIAN Cui-hua;YOU Yi-hong;FEI Wen-li;ZHAN Jun(School of Electrical Engineering, Wuhan University, Wuhan 430072, China)
出处
《电工电能新技术》
CSCD
北大核心
2018年第12期52-59,共8页
Advanced Technology of Electrical Engineering and Energy
关键词
移相变压器
配电环网
潮流优化
线路损耗
控制模型
PST
loop distribution network
power flow optimization
line loss
control model
