Publication: A grid-tied fuel cell multilevel inverter with pq control scheme
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Date
2023-10
Authors
Muhammad Haikal bin Muhamat Meri
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Abstract
Recently, sustainable electrical power has captured the attention of the electric generation industry. Renewable Energy helps in reducing global warming as well as environmental pollution. This report will discuss a grid-tied fuel cell multilevel inverter with a PQ control scheme. This project consists of three main components: the Diode clamped multilevel inverter, Fuel cell stack and LCL filter. The fuel cells will produce electricity by a chemical reaction and generate DC power. The multilevel inverter converts DC power to AC power before connecting to the electrical grid. LCL filter circuit is used to reduce harmonic from the inverter. This project can be implemented in households or small offices where users can generate electricity and use it without interruption. It will help to reduce energy generation via fossil fuels, and if implemented by many people, this can positively impact the environment. This project has been carried out in MATLAB/Simulink software. It involved designing a multilevel inverter, fuel cell stack, LCL filter circuit and grid. The fuel cell stack generates 100kW to supply local load while exporting and importing power to the grid through the interfacing inverter, depending on the demands. From simulation of MLI with LCL filter that have been connected to fuel cell stack source, real and reactive power for 1200V 50Hz with 100kW power was obtained and recorded.