一种适用于主动配电网最优潮流求解的方法

Method applicable to optimal power flow solution of active power distribution network

Abstract

一种适用于主动配电网最优潮流求解的方法:S1提出基于主动配电网的最优潮流模流模型:S2-1将主动配电网最优潮流调度周期划分为若干个前后联系的断面;S2-2:第n个时间断面的状态转移方程如下式所示:x(n+1)=Tn(x(n),u(n)) (3);第n个时间断面基础上的最优潮流u(n)=opf(x(n));(4);S2-3:断面的目标函数如下式:(5);由各个断面的最优决策组合构成整个调度周期的最优潮流调度策略。本发明在满足各种网络运行约束及确保可再生能源最大利用的基础上,实现在一个完整调度周期内的运行成本最低。
The invention relates to a method applicable to the optimal power flow solution of an active power distribution network, and the method comprises the following steps that (S1) an optimal power flow model based on the active power distribution network is presented; (S2-1) the active distribution network optimal power flow scheduling cycle is classified into a plurality of sections which are connected back and forth; (S2-2) the state transition equation of an nth time section is as shown as follows: x (n+1)=Tn (x(n), u(n)) (3) and, the optimal power flow u(n) based on the nth time section is equal to opf(x(n)) (4); (S2-3) the target function of the section is shown in the specifications (5); and the optimal decision-making combinations of all sections form the optimal power flow scheduling strategy of the whole scheduling cycle. According to the method applicable to the optimal power flow solution of the active power distribution network, the operation cost is minimized within a complete scheduling cycle on the premise of meeting various network operation constraints and ensuring the utilization of renewable energy to the largest extent.

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