Study On The Static Var Generator In The Low Voltage Based On DSP

At present, the research on compensating reactive power using static compensation device is one of the most active areas in power system subject. The paper proposes the Static Var Generator (SVG) realization method by using IGBT inverters, studying and analyzing it deeply.Firstly, the existing compensation devices are compared and the SVG's superior performance is analyzed in this paper; Secondly, the development of power theory and reactive power compensation equipment are introduced, and the emphasis is the instantaneous power theory and the SVG based on this theory; In addition, the instantaneous reactive power theory and its application to reactive power control and detection are introduced.The SVG have two control ways, one is the direct current control and the other is indirect current control. Compared with the indirect control, the direct control has more superior performance in current tracking speed and control property.According to direct current control, a hardware platform based on DSP2407 is carried out and the ±5kvar SVG experimental system is designed . The experimental system can be used to the harmonic restraint too.