DSP-Based Controller For Reactive Power Compensation Study

In this paper, first introduce the dynamic reactive power compensation technology, research and development and application of domestic and international situation, and brief analysis the unbalanced system for the compensation of reactive power compensation and the basic tenets of the characteristics. In an ideal compensation network on the basis of this paper is derived for the two SVC compensation algorithm, based on Hilbert's without FC parameters instantaneous reactive power compensation, satisfied that the law and based on symmetrical component of the vector identification Compensation Act, and their respective done in MATLAB simulation and the advantages and disadvantages of the two methods were compared. Then the vector symmetrical component in the recognition of compensation needed for a band-pass filter paper for the digital filter designed to replace analog band-pass filter, and has done a lot with MATLAB simulation. Simulation results show that the ideal digital filter and analog band-pass filter performance basically the same. The final design of the control hardware platform, the main controller for TMS320LF2407A DSP, including the expansion of 16 bits ADC sampling circuit, signal synchronization circuit, "asymmetrical PWM" such external circuit triggered thyristor circuit. Choose an algorithm develop the corresponding software, completed a pilot prototype debug, and test results show that the SVC controller can be realized not only reactive power integrated compensation, but has good speed and compensation response accuracy. Overall, the controller has certainly advanced and rationality, can be applied to engineering practice. The final paper, the experimental device is given in different parts of the measured waveform.