Study And Design Of TSC-SVC Controller Based On Fuzzy Control

More and more fluctuant loads such as electric arc furnaces and welders are connected into power networks. Its supply quality becomes badly. Based on Fuzzy control, this paper studies and designs TSC-SVC controller to eliminate the voltage fluctuation and flicker.In this thesis a fuzzy control system used in Voltage and Reactive Power auto regulatory device is designed based on the research of the technology and the development and the application of Reactive Power , the default of nine-zone controlling principle. In the fuzzy system, the member function is triangle function, the fuzzy reasoning is mamdani method and the antifuzzy is centriod method. The software MATLAB is used to calculate the fuzzy system . And the fuzzy system also has the special regular to eliminate the domain-swing between some special phenomena. The fuzzy control realizes the auto control of Voltage and Reactive Power avoiding the large math calculation;increasing the stability of the system;reducing the number of the action of capacitors.The controller makes up of TMS320F2812 DSP chip, detecting circuits including sampling circuit, modulate circuit and phase locked loop and other periphery control and drive circuit. This paper designs a low-voltage SVC model and its software and hardware system.In order to check the performance of the discipline of fuzzy-control,I did the simulating experiment .the results of the experiment demonstrate the practicability of the the discipline of fuzzy-control.