System Based On The Reactive Power Optimization Of Automatic Voltage Control

The basic aim of electric power system and electric power corporation is safely and economically providing electricity to consumers with high grade. The quality of voltage is one of the most important targets to scale the electricity quality, which has immediate infection to the electric power system stabilization circulate, reducing the connection waste, improving the production quality and depressing the electro-loss.The main objectives of reactive power and voltage control to a power grid are to reduce system losses and to improve the voltage profile. Therefore, in order to meet the requirements of regional power grid, it is necessary to find a balance between voltage quality and power system economic operation to optimize the control of voltage and reactive power.In this paper, the scheme of automatic voltage control (AVC) is for the regional power grid, the main means of control is to switch of shunt capacitors and to adjust the tap of under load tap changer (ULTC). Its aim is based on the security and stability of power grid to ensure the voltage and power qualified and to minimize power loss. Using the information from the SCADA system in the master station and the results from the power application software, it implements optimization and integrate control for voltage and reactive power of all power system. Through the analysis of field application, the system can guarantee the safe and stable operation of power system and effectively reducing labor intensity with good economic returns.