A review on power quality problems and its improvement techniques

摘要

In today's scenario Power Quality issues are turn into a serious matter for both electric power utilities and for power system engineers. Equipment used in power distribution are highly responsive to the disturbances which arises in the supply systems. Moreover, these equipment are connected together in supply system and in industries for the purpose of manufacturing. As a result the effect of any issue or problem on the equipment is very large. Usually some of the power system equipment generates disruptions, which consecutively affect the other equipment, and are supposed to develop the harmonics distortion. These distortion results in inefficient usage of power and are the major source of abrupt failure of the equipment. It affects the production process in industries, which causes financial loss, it reduces generation of power, also affects data processing activities such as in bank transaction process may lost, affects ticket booking process and generates many service sector problems in real time. The main purpose of this paper is to overlook the sources and determine the most common power quality problems occurring in the power system and study the methods available for improving these problems.