TY - CONF
T1 - Modified modulation techniques for quasi-Z-source cascaded H-bridge inverters
AU - Miceli, Rosario
AU - Viola, Fabio
AU - Schettino, Giuseppe
AU - Yang, null
AU - Blaabjerg, Frede
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
KW - Control and Optimization
KW - Electrical and Electronic Engineering
KW - Energy Engineering and Power Technology
KW - Harmonics
KW - Industrial and Manufacturing Engineering
KW - Modulation techniques
KW - PV systems
KW - Quasi-Z source cascaded H-Bridge inverters
KW - Control and Optimization
KW - Electrical and Electronic Engineering
KW - Energy Engineering and Power Technology
KW - Harmonics
KW - Industrial and Manufacturing Engineering
KW - Modulation techniques
KW - PV systems
KW - Quasi-Z source cascaded H-Bridge inverters
UR - http://hdl.handle.net/10447/344175
UR - http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=8560606
M3 - Other
SP - 3743
EP - 3748
ER -