Dynamic investigation of capacitors voltage of flying capacitor multilevel inverter based on sine-sawtooth PSCPWM

Sanakhan, Safoora; Babaei, Ebrahim; Akbari, Mohammad

doi:10.1109/pedstc.2013.6506700

Cited by 3 publications

(1 citation statement)

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“…FCMLIs usually use higher number of capacitors with lower number of DC voltage sources, which leads to a reduction in overall size and cost of the inverter [3][4][5][6]. Furthermore, different modulation and control strategies including; multi-level sinusoidal pulse width modulation, multi-level selective harmonic elimination and Multi-level space vector modulation have been presented in literature [5,[15][16][17][18][19][20][21][22]. Tolbert et al, [23] illustrates a conventional symmetric CMLI with cascaded H-bridges.…”

Section: Introductionmentioning

confidence: 99%

Control strategy applied on double flying capacitor multi‐cell inverter for increasing number of generated voltage levels

Gandomi

Varesi

Hosseini

2015

IET Power Electronics

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A 15-level flying capacitor multi-cell based inverter with new control method is proposed. The main benefit of this topology is minimising the number of components (switches, insulated-gate bipolar transistor (IGBTs), diodes, flying capacitors and DC sources with minimum variety number) that are used for producing the same number of output voltage levels. The proposed novel control strategy is capable of regulating voltage of flying capacitors on desired values, which results in increased number of output voltage levels. Another feature of the proposed control strategy is robustness against the load changes. Moreover, a new algorithm is presented for determining the voltage rating of flying capacitors. Simulations carried out in PSCAD/EMTDC software package and the experimental data were validated against numerical results.

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