Title :
Enhancing of power quality and availability in distribution systems by means of voltage source converters
Author_Institution :
ABB Power Syst. AB, Sweden
Abstract :
Voltage source power converters (VSCs) far into the tens of MVA range and based on IGBT technology are now a reality. This opens up new approaches for the improvement of power quality as well as availability in power distribution. Flicker mitigation as well as active harmonic filtering are readily attainable by means of pulse width modulation in the kHz range. As a means for asynchronous power exchange, VSCs in a back-to-back scheme offer means for the stable interconnection of weak AC power systems where active power flow and system voltages can be controlled independently of each other
Keywords :
PWM power convertors; bipolar transistor switches; harmonic distortion; insulated gate bipolar transistors; load flow control; power bipolar transistors; power distribution control; power distribution faults; power distribution reliability; power harmonic filters; power semiconductor switches; power supply quality; power system harmonics; power system interconnection; switching circuits; voltage control; IGBT technology; active harmonic filtering; active power flow control; asynchronous power exchange; back-to-back scheme; distribution system availability; flicker mitigation; power quality improvement; power system voltages control; pulse width modulation; voltage source power converters; weak AC power systems interconnection;
Conference_Titel :
Electricity Distribution, 2001. Part 1: Contributions. CIRED. 16th International Conference and Exhibition on (IEE Conf. Publ No. 482)
Conference_Location :
Amsterdam
Print_ISBN :
0-85296-735-7
DOI :
10.1049/cp:20010778
