Differentiated configuration method of reactive power compensation for distribution systems

To realize differentiated configuration of reactive power compensation (RPC), 10 kV distribution feeders are classified into four types according to their electricity characteristics firstly, and their corresponding base-state models are established for reactive power optimization. Several indicators have been defined in order to facilitate the base-state analysis, such as the configuration rate of RPC, the average load rate of distribution transforms on the feeder, the natural power factor of distribution transforms, the generation-consumption ratio, and the sensitivity between characteristic parameters and the configuration rate of RPC. Secondly, the configuration rate of RPC of each base-state model has been calculated by reactive power optimization computation and the sensitivity analysis on various electricity characteristic parameters, and then the configuration rate of non-base-state feeders can be reckoned according to it. At last, the recommended table of the configuration median rate about RPC capacity can be provided and can be used to guide the reactive power configuration planning on different types of 10 kV feeders and different transformers.