电力系统自动化2017，Vol.41Issue(21)：79-85,7.DOI:10.7500/AEPS20170119001
有源配电网的全象限安全域
Total-quadrant Security Region for Active Distribution Network
摘要
Abstract
This paper proposes a model of the total-quadrant security region for distribution systems (TQ-DSSR) with distributed generators (DGs).The topological characteristics of TQ-DSSR for urban distribution network are observed and analyzed.First,the constraints of normal operation and N -1 security for the active distribution network are discussed,and the TQ-DSSR is modeled.Second,the two-dimensional sections of TQ-DSSR are observed.Compared with the traditional DSSR,it is most obvious that the region is transformed from a single-quadrant region to a total-quadrant region.For the urban distribution system with power supply as the main function,such as the urban grids in China,other topological characteristics include:1) the shapes of TQ-DSSR are the same as DSSR,which are triangle,pentagon,trapezoid and rectangle,but the angle towards the region between bevel edge and coordinate axis is not always 45°,but also 135°;2)the most secure operating point in TQ-DSSR is the one at which DG output reaches the peak value and the power of load is zero,which differs from the original point in traditional DSSR;3) the security property in the state space of TQ-DSSR meets the generalized monotonic decrease,that is,the security will decrease or remain unchanged with an increase in the payload of the cut-set.The model of TQ-DSSR reflects the basic characteristics of reverse power flow both in branches and buses for active distribution network, laying the foundation for subsequent consideration of energy storage,micro-grid,and demand response based integral DSSR.关键词
有源配电网/全象限配电系统安全域/N-1安全/模型/拓扑特性Key words
active distribution network/total-quadrant security region for distribution system/N - 1 security/model/topological characteristic引用本文复制引用
肖峻,祖国强,周欢,林启思..有源配电网的全象限安全域[J].电力系统自动化,2017,41(21):79-85,7.基金项目
国家重点研发计划资助项目(2016YFB0900103) （2016YFB0900103）
国家自然科学基金面上项目(51477112).This work is supported by National Key Research and Development Program of China (No.2016YFB0900103) and National Natural Science Foundation of China(No.51477112). （51477112）
