含FACTS元件的电力系统三相潮流分析  

Analysis of Three Phase Power Flow on Power System with FACTS

作　　者：李娟[1] 司双[1] 陈继军[1] 

机构地区：[1]东北电力大学电气工程学院,吉林132012

出　　处：《电力系统及其自动化学报》2011年第1期132-137,共6页Proceedings of the CSU-EPSA

摘　　要：电力网络中加入FACTS元件改变了原有网络三相系统的结构,常规三相潮流应随之变化。该文针对此类问题在对几种典型FACTS元件潮流控制机理及常规三相潮流分析的基础上,建立了分别含TCSC、SVC和UPFC三类典型FACTS元件的三相潮流的三序解耦模型。将TCSC用等效阻抗并经相序变换成序参数,加入到常规三相潮流方程中作为状态变量;根据SVC的潮流控制目标将并有SVC的节点作为PV节点处理;而UPFC采用附加节点注入功率模型。含FACTS元件的三序解耦模型都采用正序约束条件,并结合牛顿-拉夫逊法编制程序,算例验证了含FACTS元件的三相潮流的收敛性。The structure of the three phase electric power network is changed by the application of FACTS devices,which causes the conventional three-phase power flow to change.Based on the mechanism analysis of typical FACTS devices power flow control and conventional three-phase power flow analysis,this paper presents three-sequence decoupling models of TCSC,SVC and UPFC for typical FACTS devices.The equivalent impedance of TCSC is transferred into sequence parameter by phase-sequence transformation and it is added to the equation of conventional three-phase power flow as state variables.The SVC node was processed as a PV node according to the target of SVC power flow control and an additional nodal injection power model was adopted for UPFC.The positive sequence constraint condition was used for the three-sequence decoupling model of FACTS,and then the three phase load flow programs were compiled by incorporation the Newton-Raphson algorithm.Finally,the convergence of the power flow is proved by the examples.

关 键 词：灵活交流输电系统 可控串联补偿器 静止无功补偿器 统一潮流控制器 三相潮流 对称解耦 

分 类 号：TM711[电气工程—电力系统及自动化]