Research on Operating Characteristics of Two-Terminal Flexible Direct Transmission with Improved Deadbeat Control

摘要: Traditional DC transmission technology has obvious defects in power adjustment speed, loss reduction, protection and control, etc., it been unable to meet the diverse needs of electricity consumption. The flexible system not only solves above shortcomings, but also advantages independently controllable supply passive network. It is widely applied distributed generation by new energy, micro grid other fields. This paper takes two-terminal as research object, establishes mathematical mode system, studies basic operation voltage source converter (VSC) control strategy on this basis. Considering problems delay poor responsiveness current closed-loop when traditional deadbeat VSC converters, an improved proposed solve above-mentioned predicting sampling at k+2 moment. Finally, co-simulation used verify correctness reliability method.