Optimal Dispatching Framework and Strategy of New-type Distribution Network for Differentiation
Under the current situation of large-scale photovoltaic integration,there are differences in active/reactive power regulation means between the existing distribution network and the incremental distribution network.Taking into account the current situation and requirements of the differentiated distribution networks,this study has designed a two-layer optimal dispatching framework.The outer layer corresponds to the day-ahead stage.Based on the day-ahead load and distributed photovoltaic power generation forecasts,through coordinating the action amounts of slow regulation equipment,an optimal dispatching with the goal of achieving the best economic performance is carried out,and the dispatching interval is one hour.The inner layer is for the real-time operation stage,with a dispatching interval of five minutes.By coordinating the active and reactive power outputs of distributed photovoltaics,energy storage and load responses,and taking into account the risk of prediction output deviation of large-scale distributed photovoltaics,the real-time optimal dispatching with the goals of minimizing the network loss and the risk of future node voltage deviation,as well as minimizing the adjustment of flexible regulation means is realized.The effectiveness of the method has been verified in multiple scenarios using an improved IEEE 33-node example.
DifferentiationNew-type Distribution NetworkOptimal DispatchCoordination of Active and Reactive PowerModel Predictive Control
万方数据
维普
