3-phase line voltages and currents in parallel resonant inverter control device of the device

摘要

The subject innovation is directed to the appropriate voltage and current control device to control the sine wave output voltage, especially relates to a line voltage and a current control device of the three-phase parallel resonant inverter device.; Conventional resonant system, the system is unstable and there were also put into practical use is also difficult because attempts to uniformly control the resonance voltage by adding a separate element or component.; The subject innovation is of a three-phase parallel resonant inverter device so as to ensure more resonance voltage uniformly control and also it is possible to obtain a sinusoidal output, stable operation without solve the conventional problems above, and appending elements and parts as to provide a line voltage and a current control device, FIG. 4 a, resonance current voltage detector (1) and a zero voltage reading / minimum resonance current setting of the switch positions and the short circuit mode determined / resonance voltage current limit, as shown in charge of first control means (2) and, with a second control means 3, the output voltage and current detection unit (4) responsible for the respective phases output voltage current state read / switch states compared and the signal combination, the output of which voltage PID control section 5, and a third control means that is responsible for the output operation mode determination / driving of the gate signal of each phase (6) and characterized in that it comprises a circuit (7) for reading out each phase switch.