Review of zonal-voltage control techniques of smart distribution system
Key Words:microgrid  active distribution network  distributed generation  zonal-voltage control
Author NameAffiliation
ZHANG Weiya Nanjing Power Supply Company, Nanjing 210000, China 
WANG Ziyu Xuzhou Power Supply Company, Xuzhou 221000, China 
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Abstract:The voltage control technique has become one of the most important functions of distribution management system. Effective voltage control measures can reduce the line loss, improve the voltage quality and enhance system security. The influence on the voltage quality of distribution system with the introduction of DG is discussed first; then the voltage control techniques are summarized, indicating that the hierarchical voltage control is more widely used than the other voltage control methods, in which the zonal-voltage control layer is the backbone of improving the voltage quality, voltage control speed and the system security. Overview of the voltage control of microgrid and active distribution network is presented and evaluated. At last, the development tendency of voltage control techniques is appraised.
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