一种地区电网分布式无功优化方法

针对地区电网的特点，提出一种分布式无功优化的新方法。考虑到各级网络结构的差异及其无功优化的特点，采用分层分区的思想，将地区电网分成次输电网络和中低压配电网两层子系统。这样，整个大规模地区电网的优化问题被分解为若干个小规模系统的优化子问题，降低了优化问题的复杂度。次输电网络和配电网可以根据自身网络特点，选用不同的潮流算法、优化数学模型、优化算法进行无功优化。各层之间通过Internet进行数据的交互，利用分布式计算的方法实现整个网络无功资源的优化。仿真结果验证了这种分布式无功优化方法是可行、有效的。

Distributed Reactive Power Optimization for Area Power System

A distributed reactive power optimization method for area power system is presented in this paper. Considering the difference of network structure and the characteristics for VAR optimization, the area power system is divided into a subtransmission sub-system and distribution sub-systems according to layers and regions. The optimization problem of the whole large-scale area power system is decomposed into several optimization sub-problems of small-scale systems, so the difficulty of reactive power optimization problem can be reduced significantly. Subtransmission sub-system and distribution sub-system are independent relatively in power flow algorithms, objective functions, and optimization algorithms. Inter-system data is transferred via the Internet. The optimization of the whole area power system is solved synthetically in the distributed computing way. The simulation results demonstrate the proposed approach is effective and feasible.