Modulator for 4-level Flying Capacitor Converter with Balancing Control in the Closed Loop
DOI:
https://doi.org/10.14311/TEE.2016.3.066Abstract
This paper presents a modulator with an active voltage balancing control for the three-phase four-level FLC converter based electric motor drive for applications supplied directly from a 6 kV ac-grid. It describes a modulation algorithm of the FLC converter by using the phase shifted PWM modulation with balancing voltage of the flying capacitor by using P controllers in the closed loop. The proposed control was verified by experiments carried out on the down-scale drive prototype of the rated power of 35 kVA.References
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