| Title |
Instantaneous Voltage Sag Corrector Conrtroller Design of Power Line System |
| Authors |
Sang-Hoon Lee ; Hyun-Moon Hong |
| Keywords |
VSC(Voltage SagCorrector) ; Power Quality ; Faults ; Series Compensation ; PSCAD/EMTDC |
| Abstract |
This paper describes the novel control techniques design of VSC(Voltage Sag Corrector) for the purpose of power line quality enhancement. A fast detecting technique of voltage sag is implemented through the detection of instantaneous value on synchronous rotating dq-reference frame. The first order digital filter is added in the detection algorithm to protect the insensitive characteristics against the noise. The relationship between the total detection time and cut-off frequency of the filter is described. The size of the capacitor bank used as the energy storage element is designed from the point of view of input/output energy with circuit analysis. Finally, the validity of the proposed scheme is proven through the simulated results. |