The study of the control system of Composite Power quality Regulation Device

This paper first analyzes the advantages and disadvantages of all kinds of compensation technology and then puts forward a integrated control strategy of the composite operation of TSC and SVG and its working principle, so we designs and develops the TSC unit and reactive compensation controller. Equipped with the man-computer interface, the main controller has the functions of password login, information acquisition, calculation, process and storage, internal and external communication, and parameter setting. The protection include over-voltage, under-voltage, phase-loss etc. The main controller determines the cooperating relationship between TSC and SVG, and TSC´s switching strategy. The simulation result in RTDS can verify the precision of the validity of the control logic, and also can test the filter performance, dynamic response performance of reactive power compensation and protection functions of the protype. Device control system can meet the design requirements. The prototype of this device has finished the type test according to the national standard.