Title :
Development of a control system for a high-performance self-commutated AC/DC converter
Author :
Sakamoto, Koji ; Yajima, Masashi ; Ishikawa, Tadao ; Sugimoto, Shigeyuki ; Sato, Tadashi ; Abe, Hideyuki
Author_Institution :
Dept. of Power Electron., Tokyo Electr. Power Co. Inc., Japan
fDate :
1/1/1998 12:00:00 AM
Abstract :
A self-commutated AC/DC converter composed of controlled turn-off devices to be applied to future system interconnection is described. The advantages of a control system for this type of converter are: (1) commutation does not fail when the system voltage is decreased or distorted by a power system fault; (2) it needs no equipment for reactive power supply, such as static capacitors or synchronous rotating condensers, when used in a low short-circuit capacity power system; and (3) it can independently control active power through DC lines and reactive power from each terminal. The proposed back-to-back (BTB) control system using the voltage margin method was verified with a simulator, and the results demonstrated the excellent features of the high-performance self-commutated converter
Keywords :
AC-DC power convertors; commutation; digital simulation; power system analysis computing; power system control; power system interconnection; reactive power control; active power control; back-to-back control system; commutation; control system; controlled turn-off devices; high-performance; high-performance self-commutated converter; low short-circuit capacity power system; power system fault; reactive power control; reactive power supply; self-commutated AC/DC converter; static capacitors; synchronous rotating condensers; voltage distortion; voltage margin method; Capacitors; Control systems; DC-DC power converters; Power supplies; Power system faults; Power system interconnection; Power system simulation; Reactive power control; Static power converters; Voltage control;
Journal_Title :
Power Delivery, IEEE Transactions on
