Abstract
Quasi-Z-source cascaded H-bridge (q Z S - C H B) inverters are one promising solution for high power photovoltaic (PV) systems. This type of topologies inherits the advantages of cascaded converters (i.e., multilevel outputs) and impedance-source inverters (i.e., high conversion ratios). In addition, it allows increasing the inverter reliability (with high redundancy). However, the modulation and control of qZS-CHB inverters are challenging to a certain extent. Thus, this paper proposes modified modulation techniques to increase the performances of qZS-CHB converters in terms of voltage gains and stresses. The novelty lies in the use of the switching frequency optimal as reference signals in the modulation techniques. A comparison in terms of harmonics with selected modulation techniques is performed.
| Lingua originale | English |
|---|---|
| Pagine | 3743-3748 |
| Numero di pagine | 6 |
| Stato di pubblicazione | Published - 2019 |
All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
- Industrial and Manufacturing Engineering
- Control and Optimization
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Cita questo
Miceli, R., Schettino, G., Viola, F., Yang, & Blaabjerg, F. (2019). Modified modulation techniques for quasi-Z-source cascaded H-bridge inverters. 3743-3748.