VF-DPC control strategy of SVG

LI Rui，LI De-jia，JI Hua-feng

（Electrical Erection Branch，China First Metallurgical Construction Co.，Ltd. Wuhan 430081，China）

Abstract：Aiming at solving the problem of static var generator（SVG）traditional harmonic current control mode output more and the slow response of currents，the working principle and running characteristic of stationary votlageless generator were introduced，proposed direct power based on virtual flux oriented control strategy（VF-DPC），to calculate the difference between the instantaneous power and power was given based design uses the idea of the double hysteresis voltage vector within the sector of improve the switching table，select the table difference vector into the switch，and the switch mode rectifier to achieve system control. While based on the TSM320LF2812D DSP platform，the Matlab/Simulink tool was used to simulate debugging compensation scheme for VF-DPC，and the laboratory system was applied in metallurgical system. The results indicate that static var generator can shorten the response time compensation based on a direct current power virtual flux oriented control，reduce the output current distortion，and the power test system factor is improved greatly，the output voltage and current phase，fully meet the non reactive compensation control system.