Jin Qiu

Photoelectric controlled modular intelligent vacuum switch with phase selection function

Vacuum switch as a great potential for development of new power switch, in the low voltage level has a strong advantage, but to the development of high-voltage level encountered a relatively large resistance. This paper provides a kind of phase selection function, photoelectric control, with multi-take energy operate the power system, with permanent magnetic actuator of the modular smart vacuum switch. Its structure includes smart selection phase controller, power drive unit, multi-taking energy operate power systems, permanent magnet actuator, vacuum interrupter chamber and the outer insulation systems.

Research on PET Output Stage Parameters Design and Control Strategy

This paper firstly used bipolar SPWM waveform generation method (regular sampling method) to generate waveform, and analyzed the harmonic wave of output voltage to design filter parameters accordingly, taking into account the dead-zone effect of the harmonic effects. Then it used current inner loop and voltage outer loop control strategy, using pole placement to design controller parameters, and joined the dead-time compensation. Finally it verified by simulation results.