Research of High-Voltage IGBTs for Series Connection with Active Voltage Clamping

Abstract:

Because of the high voltage, high current and easy to be driven, IGBT become the optimal selection of the power convert system. As the improvement of power electronics, the voltage becomes higher and higher, such as high inverter, HVDC and Flexible HVDC system. The voltage should be dozens of kilo-volt. Single device cannot be used in these occasions. Thus, IGBTs for series connection is necessary.In the series connection of IGBTs, as the result of the different parameters and the delay of the drive signals, the main problem is unequal sharing of voltage respectively. The devices which withstand over voltage might be broken down and result in the fault of the whole circuit. Therefore， it is necessary to protect the over voltage of the IGBT.The method of active voltage clamping for the High-Voltage IGBTs for series connection is presented. The transient voltage suppressor(TVS) lied between the collector and gate of IGBT is adopted as active clamping circuit, and the clamping voltage value is decided by rated IGBT voltage and the working voltage. When turning of on the IGBT, TVS is broken down by over voltage, and the voltage between collector and emitter is clamped．

• Periodical: Applied Mechanics and Materials (Volume 734)
• Pages: 901-905
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.734.901
• Online since: February 2015
• Authors: Zhi Xia Wang*, Zou Ge, Zhong Yuan Chen, Ying Ying Su
• Keywords: Active Voltage Clamping, Over Voltage, Press IGBT Series, Transient Voltage Suppressor

References

[1] Ming Li, Xiong Fang, Yue Wang. Simulation Study of Parameter Influence on Dynamic Voltage Rise Control[A]. Applied Power Electronics Conference and Exposition[C]. Palm Springs, Canada, 2010: 1745-1748.

DOI: 10.1109/apec.2010.5433469

[2] Yang Lei, Zhang Zhi Feng, Jing Xiao Yong. Suppression Method of Turn off Peak Voltage Overshoot for IGBT [J]. Marine Electric, 2009：29(4)：5-8.

[3] Zhang Li, Ji Zhan Xing, Jiang Fen Ping. Analysis on the Key Technologies of Intelligent IGBT Driver Module 2SD315A[J]. High Power Converter Technology, 2009, (1): 1-4.

[4] J. Saiz, M. Mermet, D. frey, P.O. Jeannin, J.L. Schanen. Optimization and Integration of an Active Clamping Circuit for IGBT Series Associacion, IAS (2001).

DOI: 10.1109/ias.2001.955594

[5] A. Piazzesi, L. Meysenc. Series Connection of 3. 3KV IGBTS with Active Voltage Balancing. Aachen, Germany, (2004).

DOI: 10.1109/pesc.2004.1355537

[6] Friedhelm bauer, Luc Meysenc, Alice Piazzesi. Suitability and Optimization of High-Voltage IGBTs for Series Connection With Active Voltage Clamping. IEEE TRANSACTIONS ON POWER ELECTRONICE, VOL. 20, NO. 6, NOVEMBER (2005).

DOI: 10.1109/tpel.2005.857515