Analysis Of Power Quality Of Yong Chuan Power System And Research On Methods To Promote It's Power Quality

With the development of power system, the power product is turning from planned economy to market economy, in the power market, power supply behaves as a kind of financial service, being as a merchandise, power has quality like the other merchandises. The power user's demand for power quality is more and more higher. So ensuring power quality is an impersonal demand of power market, at the same time, is an important factor for promoting the civilization and stabilization of social.Power quality presents the degree of magnitude and wave of the voltage or current of every point in the power system to meet the standards, it is confirmed by the construct of power system and the properties of loads. With the development of the technology the power electric, nonlinear loads have appeared in the power system, these nonlinear loads brought about a large amount of harmonic to the power system, and caused imbalance of three-hpase voltage. In addition, the impulse loads caused voltage wave and flink, and lopsided loads caused imbalance of three-hpase voltage. The above factors make the power quality declining, and have seriously influenced the normal production and living of people.In this paper, the author analyzes the reasons and harm of decling of power quality, and produces several methods to promote power quality at present inland and abroad. The author investigated the current situation of power system of Yong chuan, analyzed the power system, measured and calculated its power quality, and finally put forwarded several measures to promote the power quality of Yong chuan's power system, so that to supervise the layout, construct and management of Yong chuan's power system, which has theoretical meanings and important factual value.