The Applied Research On The Economical Operation Of Transformers In The Area Power Network

The loss of the transformers accounts for largish proportion in the loss of the power system,so realizing economical operation of transformers is one of the effective measure to readuce loss and save energy.But from existing status of this field,how to effectively realize economical operation of transformers has not been done very well.This dissertation main researches how to effectively actualize on-line economical operation of transformers base on the existing SCADA system and equipments of the area power network. The main work is as following:Firstly,some basic issues of economical operation of transformers are analyzed .focusing on calculating the economic load coefficient and carving up the running area of the transformer, determining the advantage between transformers,confirming economical operation mode of transformers in the parallel or divided running condition.Secondly,how to actualize economical operation of transformers in substations which load fluctuates frequently is analyzed. And the resolvent that the change time of operation mode of transformers in substations is confirm scientificly, according as the real-time data and the result of the short-term load forecasting ,is bring forward.At last,the software of the real-time centralized-control system of economical operation of the area network's transformers has been developed and applied in the practical power system with good performance.