Distribution Network Line Loss On-Line Monitoring And Analysis System

The methods to calculate the theory line loss of the distribution network is analyzed and summarized at first. The method to conduct monitoring and analysis real-time distribution network line loss is presented, which utilizing existent data of the systems for SCADA, DMS, etc. of all power supply bureaus, such real-time data as inactive power, voltage , electric current and power factor ,etc. The procedure which requests and sends packets with many threads followed TCP/IP is developed, and is used for concentrating on receiving the real-time data that other systems send, the seamless interconnection and effective integration of the systems for SCADA, DMS, etc. and management information system(MIS) of the enterprises are implemented. The real-time line loss of the distribution network monitoring and analysis is implemented and there is no other hardware to put into. Utilize Delphi to develop visual mixing the electric wire and decreasing and analyzing the software of calculating in real time, this software can not merely draw the form line chart of the distribution network, and input the parameter of the component through the figure, finish the analysis and calculation of the line loss. Utilize the procedure that develops to analyze line loss of more than 400 10kV circuits in Xi'an, and the result indicates the method presented in the paper is feasible, the application of the software is simple and convenient. It has offered positive support for development of the distribution network line loss work of Xi'an Power Supply Bureau.