Design Of Power Quality Monitoring And The Realization Of Its Network

With the development of science and technology, electric energy is playing a significant role in people’s life. Now it is the indispensable energy which can support the people life. The application level can reflect the development level of a country’s national power. On the basis of requirement of scientific and technological progress, the power energy quantity should meet the basic requirement of the nation and people, at the same time, the quality should meet the requirement of industrial manufacture. Power quality represents a nation’s scientific and technological level and industrial production capacity, it’s the inevitable result of information society develop. To monitor the level of power quality of power gridcomprehensively, we should creative effective power quality monitoring system. As our nation’s power quality monitor technology fall behind the developed country, this paper introduces a virtual instrument based on visual programming Labview. It finished the data analysis through Labview and analysis the collected current and voltage, monitoring of voltage, current signal waveform in real time. It formed a power quality monitoring software system. The hardware part designed the analog signal conditioning circuit, it can realize the voltage filtering, remove DC interference and signal amplification, and other functions. In this paper, according to the calculation method of the basic parameters of power quality I give the calculation formula of these parameters, it designed testing the voltage fluctuation, voltage flicker and harmonic monitoring module. At last, it used the WEB publishing function of Labview software for network, it can realize the function of the network monitoring.