Current-balancing technique for paralleled interleaved inverters with magnetically coupled inductors

Current-balancing technique for paralleled interleaved inverters with magnetically coupled inductors

Coupled inductors can be used to connect cells in parallel in a voltage source inverter to increase both rated power and bandwidth. To successfully implement this strategy it is critical to achieve a balanced contribution to the output current by all paralleled cells. Circulating currents should als...

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Bibliographic Details
Published in:2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS) pp. 789 - 794
Main Authors: Jovanovic, Dejan, Pezeshki, Houman, Broadmeadow, Mark A. H., Walker, Geoffrey R., Ledwich, Gerard F.
Format: Conference Proceeding
Language:English
Published: IEEE 01-12-2017
Subjects:
coupled inductors
Current sharing
Inductors
interleaving
Inverters
Legged locomotion
Mathematical model
parallel legs
Performance evaluation
State feedback
Switches
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Summary:Coupled inductors can be used to connect cells in parallel in a voltage source inverter to increase both rated power and bandwidth. To successfully implement this strategy it is critical to achieve a balanced contribution to the output current by all paralleled cells. Circulating currents should also be controlled and minimized to prevent additional losses in the switching devices. This paper presents an effective method to achieve current sharing between inverter cells paralleled via magnetically coupled inductors, using a state feedback controller. Experimental results are presented validating the performance of the proposed balancing method.
ISSN:2164-5264
DOI:10.1109/PEDS.2017.8289224