AUTOMATIC COORDINATED VOLTAGE CONTROL (CVC) SYSTEM
Three-tier hierarchical voltage control: Coordinates reactive power (VAr) resources with the concepts of Tertiary Voltage Control (TVC), Secondary Voltage Control (SVC) and Primary Voltage Control (PVC).
Adaptive Zone Division (AZD): Automatically reconfigure control zones with adaptive clustering method.
Enhanced Power Plant Voltage Controller (PPVC) and Substation Voltage Controller (SSVC).
Features and Specifications:
The CVC system shall include:
- Master station operates in the power system control center, and slave station runs at power plants or substations.
- Automatically control voltage and coordinate different voltage levels based on information interactions.
- Controlled devices may include generators, condensers, capacitors, reactors, on-load tap changer and etc.
CVC coordinates the reliability and efficiency requirements of the electric grid operation, improve voltage stability margins, keep safe voltage profiles, and reduce transmission losses.
The CVC system is made up of hardware and software that determines control strategy according to the operational states of the electrical grid, and closed-loop controls of VAr and voltage regulating equipment.
The CVC system performs system-wide optimisation and regulates local control devices of power plants and substations.
Copyright: Automatic Coordinated Voltage Control System for Power System Voltage Control and Information Management