Open AccessReduced switch z-source multilevel inverter using constant boost control methods for renewable energy sources
Author(s) -
S. Nagaraja Rao,
H. M. Rohith,
Bhavnesh Kumar
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1706/1/012104
Subject(s) - renewable energy , topology (electrical circuits) , inverter , matlab , computer science , voltage , voltage source , total harmonic distortion , z source inverter , three phase , electronic engineering , control theory (sociology) , electrical engineering , engineering , control (management) , artificial intelligence , operating system
This paper presents single phase seven level Reduced Switch Z-Source Multi-level Inverter (RSZSMLI) for Renewable Energy Sources (RES). The performance ofRSZSMLI topology is analysed using Constant Boost Control (CBC) methodsbased on sine reference and third-harmonic reference Phase Shift Modulation (PSM) techniques. RSZSMLI will have three DC sources, three Z-source networks, ten power switches and ten main diodes. In the suggested RSZSMLI topology, the output voltage is not limited to summation of DC input voltagescompared to traditional Multilevel Inverters (MLIs).The output voltage can be amplified with shoot-through ratio (K) of Z-source network.Hence, additional DC to DC converter is not required and the topology is more immune to short circuit. The RSZSMLIis analysed using two CBC methods with variable shoot-through ratio (K) to gain additional boost capability. The performance of the RSZSMLItopology is validated with simulation results using MATLAB/SIMULINK.