Title :
A novel structure of multi-level high voltage source inverter
Author :
Young-Seek Kim ; Beom-Seok Seo ; Dong-Seok Hyun
Author_Institution :
Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea
Abstract :
This paper deals with a new multi-level high voltage source inverter with GTO thyristors. A multi-level approach seems to be best suited for implementing a high voltage conversion system because it leads to harmonic reduction and safely deals with a high power conversion system independent of the dynamic switching characteristics of each power semiconductor device. However, a conventional multi-level inverter has some problems; voltage unbalance between DC-link capacitors, and overvoltages across the inner switching devices. Therefore, the authors propose a novel structure of a multi-level inverter for improving these problems. They discuss the topology, operating modes and the PWM method.<>
Keywords :
invertors; power convertors; power system harmonics; pulse width modulation; switching circuits; thyristor applications; DC-link capacitors; GTO thyristors; PWM method; dynamic switching characteristics; harmonic reduction; high power conversion system; high voltage conversion system; inner switching devices; multi-level high voltage source inverter; operating modes; overvoltages; power semiconductor device; topology; voltage unbalance; Capacitors; Lead compounds; Power conversion harmonics; Power semiconductor devices; Power semiconductor switches; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Thyristors; Voltage;
Conference_Titel :
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-1233-3
DOI :
10.1109/TENCON.1993.320692
