Current Sharing Control Strategy for IGBTs Connected in Parallel

Raul Perez-Delgado; Guillermo Velasco-Quesada; Manuel Roman-Lumbreras

Current Sharing Control Strategy for IGBTs Connected in Parallel

Raul Perez-Delgado

Guillermo Velasco-Quesada

Manuel Roman-Lumbreras

Vol. 16, No. 2, pp. 769-777, Mar. 2016

10.6113/JPE.2016.16.2.769

Current imbalance

Current sharing

IGBT parallel operation

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Abstract

This work focuses on current sharing between punch-through insulated gate bipolar transistors (IGBTs) connected in parallel and evaluates the mechanisms that allow overall current balancing. Two different control strategies are presented. These strategies are based on the modification of transistor gate-emitter control voltage VGE by using an active gate driver circuit. The first strategy relies on the calculation of the average value of the current flowing through all parallel-connected IGBTs. The second strategy is proposed by the authors on the basis of a current cross reference control scheme. Finally, the simulation and experimental results of the application of the two current sharing control algorithms are presented.

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Cite this article

[IEEE Style]

R. Perez-Delgado, G. Velasco-Quesada, M. Roman-Lumbreras, "Current Sharing Control Strategy for IGBTs Connected in Parallel," Journal of Power Electronics, vol. 16, no. 2, pp. 769-777, 2016. DOI: 10.6113/JPE.2016.16.2.769.

[ACM Style]

Raul Perez-Delgado, Guillermo Velasco-Quesada, and Manuel Roman-Lumbreras. 2016. Current Sharing Control Strategy for IGBTs Connected in Parallel. Journal of Power Electronics, 16, 2, (2016), 769-777. DOI: 10.6113/JPE.2016.16.2.769.