A new fast-converged estimation approach for Dynamic Voltage Restorer (DVR) to compensate voltage sags in waveform distortion conditions
An estimation approach is developed. The approach detects symmetrical components of intended frequencies. The approach identifies symmetrical components of unbalanced voltages in a network. The approach is applicable in on-line and fast-responding applications. A control scheme well-suited to DVR, provides compensating voltages using the approach.
estimation approach dvr voltage sag symmetrical components control scheme harmonic