Title :
Application of automatic voltage control system in power grid based on coordinated control
Author :
Man Cao ; Chen-guang Zhang ; Ya-jun Wang
Author_Institution :
Ordnance Eng. Coll., Shijiazhuang, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
The automatic voltage control system of South Hebei Power Grid is a three grade coordinated control system including region,province and area based on layering and zoning principles. The system gets control instructions from North China Power Grid and computes the voltage target values of power plant and substation according to the network loss minimized and the voltage qualified as a constraint, regulates the reactive power of the units and switches the capacitors and reactances of substation, and also sends the instructions to area dispatching. This paper introduces the main technical characteristics of the automatic voltage control system, analyzes the control effect and the significance in reducing network loss after closed-loop operation, based on actual operating experience, the countermeasures are proposed to the problems in operation.
Keywords :
capacitor switching; closed loop systems; power grids; power system control; substations; voltage control; North China power grid; South Hebei power grid; automatic voltage control system; capacitor switching; closed-loop operation; control effect analysis; layering principles; network loss minimization; power plant; substation; three grade coordinated control system; voltage target value computation; zoning principles; Automatic voltage control; Dispatching; Power generation; Power grids; Reactive power; Substations; automatic voltage control; closed-loop operation; control strategy; regulation passing rate; setting value;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6941235
