Research On Reactive Power And Voltage Control Of Wind Farms Under Wind Storage Joint

Currently,the environment problem is increasingly prominent,and the energy crisis is gradually intensified,meanwhile,the Department of new energy power generation can effectively alleviate the depletion of traditional energy sources.In the new types of energy power generation,wind power is developing rapidly.Wind power unit itself has a certain amount of active and reactive power regulation characteristics,but its regulation is very limited.In order to meet the requirements of interconnection,and reliable operation,current wind farms are equipped with reactive power compensation device.Reactive compensation devices currently used in wind farms have shunt capacitor,SVC and STATCOM.Wind farm energy storage plus a storage device can play the role of a smooth wind farm output,both active and can send hair reactive and reactive power compensation device can not only improve the output power with wind farms,export voltage regulator,and can improve LVRT wind farm.This paper verifies the important role of the STATCOM for doubly-fed wind generator voltage regulation by simulation.Secondly,on the basis of classifying the wind turbine generators,studying the reactive voltage control strategy.Taking Haixing wind farm in south power network of Hebei province for example,studying the voltage control scheme by use of the energy storage devices and reactive power compensation device.Finally,to take the control strategy into visualization,we set the software platform of the energy storage type wind field for reactive voltage control strategy.