Distributed continuation power flow method for integrated transmission and active distribution network  

作　　者：Jinquan ZHAO Xiaolong FAN Changnian LIN Wenhui WEI 

机构地区：[1]Research Center for Renewable Energy Generation Engineering(Hohai University),Ministry of Education,Nanjing 210098,China [2]Beijing Kedong Electrical Control System Cooperation Limited,Beijing 110179,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2015年第4期573-582,共10页现代电力系统与清洁能源学报（英文）

基　　金：This work is supported by National Natural Science Foundation of China(No.51077042,No.51577049);Special Foundation of The doctoral program of Higher Education(No.20120094110008).

摘　　要：As the integration of distributed generations(DGs)transforms the traditional distribution network into the active distribution network,voltage stability assessments(VSA)of transmission grid and distribution grid are not suitable to be studied separately.This paper presents a distributed continuation power flow method for VSA of global transmission and distribution grid.Two different parameterization schemes are adopted to guarantee the coherence of load growth in transmission and distribution grids.In the correction step,the boundary bus voltage,load parameter and equivalent power are communicated between the transmission and distribution control centers to realize the distributed computation of load margin.The optimal multiplier technique is used to improve the convergence of the proposed method.The three-phase unbalanced characteristic of distribution networks and the reactive capability limits of DGs are considered.Simulation results on two integrated transmission and distribution test systems show that the proposed method is effective.

关 键 词：Integrated transmission and distribution grid Distributed computation Voltage stability Continuation power flow Three-phase distribution network Distribution generation 

分 类 号：TN9[电子电信—信息与通信工程]