基于恒定Hessian矩阵的三相最优潮流综合调压策略研究
    点此下载全文
引用本文:汝石?覮.基于恒定Hessian矩阵的三相最优潮流综合调压策略研究[J].计算技术与自动化,2020,(4):68-74
摘要点击次数: 335
全文下载次数: 0
作者单位
汝石?覮 (国网黑龙江省电力有限公司黑龙江 哈尔滨 150090) 
中文摘要:针对分布式发电(DG)接入配电网易引起综合电网潮流不稳定性问题,以支路电流作为未知变量建立了配电网三相有载分接开关(OLTC)的二次模型,旨在解决三相最优潮流(OPF)综合调压。以支路电流作为状态变量,OPF迭代的Hessian矩阵作为常量,利用高斯惩罚函数约束OPF问题中连续离散控制变量,结合二次惩罚函数约束Hessian矩阵的恒定性,构造了预测校正双内点法(PCPDIPM)求解配电网三相OPF。此外,将调压器整合到OPF模型中以形成综合调压策略。在改进的IEEE-13配电网三相不平衡测试系统上对该方法进行了测试和验证。
中文关键词:配电网  Hessian矩阵  最优潮流  综合调压
 
Study on Three-phase Optimal Power Flow of Distribution Network Based on Constant Hessian Matrix
Abstract:Aiming at the problem of power flow instability in integrated power system caused by DG access to distribution network,a quadratic model of three-phase on-load tap changer(OLTC) in distribution network is established with branch current as an unknown variable,aiming at solving the integrated voltage regulation of three-phase optimal power flow(OPF). Taking branch current as state variable and Hessian matrix of OPF iteration as constant,continuous discrete control variables in OPF problem are constrained by Gauss penalty function,and the invariance of Hessian matrix is constrained by quadratic penalty function. A predictive correction double interior point method(PCPDIPM) is constructed to solve three-phase OPF in distribution network. In addition,the voltage regulator is integrated into the OPF model to form a comprehensive voltage regulation strategy. The method is tested and validated in the improved three-phase unbalance test system of the IEEE-13 distribution network.
keywords:distribution network  Hessian matrix  optimal power flow  integrated voltage regulation
查看全文   查看/发表评论   下载pdf阅读器