Converter Valve Selection of Flexible HVDC Transmission System
Converter valves of flexible HVDC system are voltage source converter valves composed of full-controlled power electronic devices,and hence the most important part of the flexible HVDC transmission technology.This paper summarizes the basic structures and working principle of the common full-controlled power electronic devices,compares their different characteristics,and analyzes the application prospect of different types of full-controlled power electronic devices in flexible HVDC transmission fields.