主动配电网日前有功-无功联合调度

随着主动配电网技术的不断发展,其可调设备种类和数量都迅速增加,包含有载调压变压器、并联电容器组、分布式发电以及储能等多种资源。以配电网运行经济性为目标,建立了配电网日前有功-无功联合调度模型,通过调用其大量有功-无功资源实现配电网的运行优化。结合优化理论最新进展,利用分段线性逼近方法对原始模型进行松弛,以提高求解效率。搭建改进的IEEE 33节点系统进行算例分析,验证了所提有功-无功联合调度模型以及求解算法的有效性。

Day-Ahead Active-Reactive Coordinated Power Dispatch in the Active Distribution Network

With the continuous development of active distribution network technology,the types and quantities of adjustable devices including on-load voltage regulating transformers,shunt capacitor banks,distributed generation and energy storage,are rapidly increasing.In this paper,aiming at the economical operation of distribution network,a cooperativereactive joint scheduling model of distribution network is established,and the operation optimization of distribution network is realized by calling a large number of active-reactive resources.Taking into consideration of the latest development of optimization theory,the piecewise linear approximation method is used to relax the original model and improve the efficiency of the solution.Simulations are conducted on the unbalanced IEEE33 bus test system to verify the effectiveness of the proposed active-reactive coordinated dispatch model and the algorithm.