Operation, control and monitoring of PEM fuel cell system

Abstract

Complex modulation and control method are major challenges to the renewable energy sources such as PEM fuel cell. Conventional methods of controlling the Z-Source Inverter have been limited by the inefficient and high losses. Therefore, it compels researchers to provide sustainable solutions in reducing switching losses. Utilization of One-Cycle Control is one of the simplest and fastest response approaches to eliminate the increasing of switchings per carrier cycle. Batch tests were conducted to investigate the effect of One-Cycle Control on switching loss reduction. One-cycle control was built and tested with the Z-Source Inverter. This report will discuss on the different parts of One-cycle Control and the influence on the Z-Source Inverter. The observations of the waveforms and the numbers of switching were studied in relation to the behaviour of the One-Cycle Control. Results proved that One-Cycle Control is an effective method in reducing switching loss. One-Cycle control is able to control the shoot-through and boost voltage. In addition, future developments of the experiments on One-Cycle Control were elaborated at the end of the report.