Performance investigations on solar photovoltaic sustained zsi based unified active power filter for enrichment of power quality

Abstract

In modern distribution systems, reactive loads such as motor drives, fans, pumps, and power electronic converters use the majority of energy. These loads often draw currents with a lagging power factor, resulting in a reactive power burden on the distribution system. Due to high reactive power demand, the distribution system has a low power factor and poor voltage control. This causes higher feeder losses and a reduction in active power flow. There are also problems with power quality in the distribution system when there are non-linear loads present. It is the power electronic equipment that is primarily responsible for drawing non-linear currents from the distribution networks. Because of the harmonics current burden caused by these non-linear loads on distribution networks, normal functioning of electrical equipment linked to the system is interrupted. Nowadays, power electronic devices are used in the majority of equipment linked to the distribution system, which often results in poor power quality. Microprocessor-based controllers in this equipment are very sensitive to voltage varied from their optimum waveform. In recent years, as a result of the proliferation of modern electrical and electronic equipment, the reliability of electric power has been a source of concern, and significant research is being conducted to enhance the reliability of electric power. Poor power quality has a detrimental effect on electrical equipment, ultimately resulting in substantial economic losses. As a result, the installation of custom power components to address power quality problems becomes critical. As a result, this thesis examines how to improve the power quality of power distribution systems with the use of a Unified Active Power Filter (UAPF). newline newline newline