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Growth in high voltage power conversion applications in recent years shows the importance and requirement of high voltage/high power converters in power electronic applications. The major limitation in this industry is the maximum voltage blocking capability of semiconductor switches. To overcome this restriction, the power switches are connected in series to build a high voltage compact switch. This project proposes a modified circuit based on quasi-active gate control (QAGC) which provides the capability of connecting a desired number of IGBTs in series. One of the important advantages of the proposed circuit is to use a single PWM pulse for switching process. Simulation results show an excellent voltage balancing between four and eight series-connected IGBTs. Also, experimental results are carried out to verify the performance of the proposed circuit.
Applications:
All high voltage power converters
Power Electronics and Energy Systems Laboratory was established in 2010 with the aim of training efficient engineers and researchers. In this educational and research environment, specialized fields such as the design of power electronic systems, including all types of power supplies, inverters and rectifiers, high and multi-level power converters, types of high voltage or HV systems, energy conversion systems, etc. are under study and research.
Design: Mahyan
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