Design And Application Of Reactive Power Compensation Scheme Of YiLi Certain Coal Mine’s High Voltage Power Supply System

Coal mine production often needs underground working.Coal mine enterprise as an important resource enterprise,safety and high efficiency production is very important.To increase the power factor by Var compensating at the end of the line voltage is becoming a good method in safe and efficient operation of coal mine’s electric installation.The author does following researches on the problem of YiLi certain coal mine’s reactive power compensation based on a lot of domestic and foreign literature:Firstly,design feature of coal mine’s power supply system,the problem of reactive power compensation and the present situation,then research the commonly used methods,including some theory about operational principle of SVC,reactive power compensation of the coal mine and the harmonic suppression.Secondly,use special equipment and test the power,then get the field data.After analyse the data,propose the method of YiLi certain coal mine’s reactive power compensation based on TCR-SVC and MCR-SVC.And systematically analyse the requirement and the flexibility of reactive power compensation of YiLi certain coal mine.Finally,design the control strategy,the installation and the device of reactive power compensation of YiLi certain coal mine’s reactive power compensation method,then test this scheme to get the implementation plan.Verification of research method and mentioned scheme is made by actual test.This article is not only the theoretical reference of YiLi certain coal mine’s reactive power compensation,it also has a practical use in some project.