Unified power quality controller employing resonant electronic switch, and method
An electronic switch and power quality technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve the problems of increasing the line current slope, failing to meet fast identification, DVR devices cannot form a compensation circuit, etc., to avoid production process interruption , rapid suppression of fault current, and the effect of avoiding large-area voltage drops
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[0058] A unified power quality controller using a resonant electronic switch proposed by the present invention and its operation control method are described in detail in conjunction with the accompanying drawings and embodiments as follows:
[0059] A power quality control device UPQC-RES using a resonant electronic switch proposed by the present invention is characterized in that it includes a voltage source converter 1, an energy storage unit 2, a resonant electronic switch 3 and a main controller and various The main control system 4 composed of sensors, such as figure 1 shown. Among them, the resonant electronic switch is connected in series between the power grid and the protected nonlinear sensitive load, and the two ports of the resonant electronic switch are respectively PCC 1 Point and PCC 2 point; the AC output port of voltage source converter 1 is connected to PCC in parallel 2 point, the capacitor ports on the DC side are respectively connected to the correspon...
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