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Voltage Sag Mitigation via DVR System by UzhansEell-neino is a document available to read on EtoBox.
1) Voltage sag is a short reduction in voltage between 10-90% of nominal voltage lasting 0.5 cycles to 1 minute. It is caused by faults or starting motors drawing high current. 2) A Dynamic Voltage Restorer (DVR) is a series compensator that can inject voltage to maintain the load voltage during a sag. It employs PWM inverters and can generate/absorb real and reactive power. 3) During normal operation, the DVR capacitor charges. During a sag, it discharges to inject the difference between the nominal and s
- Author
- UzhansEell-neino
- Language
- EN