基于辅助问题和序列二次规划法的电网分区并行最优潮流算法

Parallel Optimal Power Flow Algorithm Based on Auxiliary Problem Principle and Sequential Quadratic Programming Method

针对传统集中式潮流计算存在的问题,建立基于电网分区的分解协调模型.采用构造辅助问题(AP)的方法进行分布式并行计算,将大型互联电网最优潮流问题分解为多个子网的并行潮流优化问题,在每个子网中,采用序列二次规划法求解子系统的的优化问题.基于地域的系统分解与协调符合电网市场的发展方向.仿真结果表明。

To solve the difficulties caused by the cen tion-coordination model based on subarea division is tralized optimal power flow algorithm, the decomposiproposed, and the auxiliary problem principle isused in parallel processing. The optimal power flow problem of the whole system can be end parallel flow optimizations of sub systems. In every subarea system, the sequential quadratic programming algorithm is used to solve the optimization problem of the subarea system. The subarea division based on optimization accords with the needs of power market development . The simulation shows that this algorithmis is fast and has a good convergence property.