Voltage-current Double Loop Control Strategy for Magnetically Controllable Reactor Based Reactive Power Compensation

Voltage regulation depending on reactive power compensation is the main feature of the AC power supply system. Magnetically controllable reactors (MCR) are becoming a growing demand for this purpose. The structure and working principles of MCR are analysed in this paper while a simulation model is established. The reactive power compensation strategy based on a single loop voltage control system (SLVCS) is presented and a double loop voltage-current control system (DLVCCS) is proposed. A comprehensive scenario is developed to mitigate reactive power compensation by using the proposed controls. Simulation results substantiate that proposed controls of MCR has a faster response in comparison to the traditional control, and it provides the least voltage variation at the line end. It also shows that the proposed control on MCR meet the desired objective of the voltage regulation and provides flexibility to ac transmission system.