Research On DSP Power Quality Analysis System

Modern electronic technology is widely used, but it causes serious electronic pollution increasingly.Large number of electronic devices and non-linear equipment used in industry, make electricpower system seriously affected and threatened. The worsening quality of public power supply and harmonic disturbance caused by accidents lead in serious threat to the security of the power system and the stable operation. At the same time, the operation of electric equipment and the sustainable and efficient industrial and agricultural production suffer adverse impact. Now how to improve power quality and ensure the safe and stable operation of electrical equipment have become the focus of widespread attention at home and abroad.This paper analysises the dangers of power quality problems, and propose an advanced domestic level DSP-based power quality analysis system, with accurate and better solution of real-time measurement, more of power quality, such as bias supply voltage, voltage fluctuation and flicker, the harmonic grid, unbalanced three-phase voltage, and voltage frequency.In this paper, the major work are done by the following:1. Illustrate the background, issues origin, purpose and meaning,and the researea status and the latest developments about the power quality analysis system for research.2. Analyse the theory on the power Quality Analysis System.3. Determine the hardware system design diagram.4. Combine the actual real-time monitoring and digital signal processor in the design of hardware.5. Design the software on the basis of the hardware.Finally, summarize the work of the Power Quality Analysis System and give some prospects.