POWER QUALITY DISTURBANCE GENERATOR WITH PHASE SHIFT FUNCTION

摘要

The present invention relates to a power quality disturbance generating device capable of phase control for performance testing of a power quality improving device.;The present invention provides a power quality disturbance generator capable of phase control to generate a load voltage having a voltage variation to test the performance of the device for improving the quality of power, wherein the power supply voltage V _s of the alternating current is applied. To supply power; A variable voltage regulator connected in parallel with the supply power supply and obtaining a V _T ; A variable voltage side switch connected to the variable voltage regulator and being a switching element; A transformer side switch which is a switching element connected in series with the variable voltage side switch; A phase shift switch which is a switching element connected to the transformer side switch, the variable voltage side switch and the variable voltage regulator; And a transformer connected to the transformer side switch, the power supply, and the load, and configured to obtain a voltage V _d , wherein the power quality disturbance generating device can perform phase control for performance testing of the power quality improving device. .;According to the present invention, it is possible to implement a power quality disturbance generating device that is not only high in reliability but also low in cost, simple in structure, high in efficiency, and small in size and light in weight.;Voltage drop, voltage rise, power outage, voltage unbalance, phase shift, power quality disturbance, Sag, Swell, Unbalance, Phase Shift, UPS, SCR, Power Quality Disturbance