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The University of Southampton
University of Southampton Malaysia

Research project: New Boost Power Inverter with Hybrid PWM for Efficient Renewable Distributed Generation

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The urgent need to mitigate climate change requires extensive use of energy from renewable resources such as solar, wind, hydro etc. to reduce the greenhouse gas emissions.

An efficient, reliable power inverter with high performance controller is thus the key to the success of renewable energy integration. The cascaded H-bridge multilevel inverter is among the popular inverter topologies due to its voltage boosting capability. However, this inverter requires a great number of power MOSFETs and hence it is bulky, expensive and has low efficiency. We propose a new boost power inverter topology with hybrid PWM. The performance of the proposed boost inverter topology and control strategy for renewable distributed generation system will be simulated and tested experimentally. A comparison of the proposed power inverter with the conventional multilevel inverter will be carried out to justify the improvements.

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