LabVIEW-based 10kV Distribution Network Line-loss On-line Automatic Computation And Management System

With the computer technology being widely used in power utilities, more and more large-scale softwares have been applied in power supply companies. Most manually operated work is gradually done by computers. But the automation level of distribution network is low. Some calculation work, especially the calculating and statistical analysis of energy losses of the 1 OkV power distribution network, was still done manually. This large work-load and low calculation accuracy make it necessary that professional software was needed to improve the energy losses calculating, analyzing and management level, which can provide technique support for energy saving of distribution network.This essay fully analyzed current research situation of professional energy losses calculation software of distribution network in home and abroad. Then put forward the LabVIEW-based line-Loss on-line automatic computation and analysis management system of 10kV distribution networks.Firstly, through numerous studies, we compared and summarized typical algorithms of distribution network energy losses calculation. The method of equivalent resistance based on the data of the SCADA and electric power management MIS was put forward according to the result of our research. And the computation module of this algorithm was also given out in details.Secondly, the paper elaborated the realization of the method of equivalent resistance based on the data of the SCADA and electric power management MIS. In this part, the data communication between the calculating software and the SCADA and the data communication between the calculating software and the electric power management MIS were introduced detailedly. We also explain Data Annotation and data storage.At last, we introduced the functional design and software design of the whole system. We explained all the data type, the configuration files and all the functions of the system. At last, all the functions and the practicality of this system was introduced and tested through examples.