Abstract: In view of the malfunction of capacitor overvoltage protection in substation, the whole process of capacitor overvoltage protection tripping is restored through the …
Customer ServiceIn this paper, a new over-current protection method for PMSM VSI with a small DC-link capacitor is proposed. This method can convert the electro-magnetic energy in inductors into mechanical energy instead of flowing to the small DC-link capacitor. 2 Analysis of traditional over-current protection method.
Customer ServiceInductor-based converters can avoid the converter failure caused by the failure of energy storage capacitors and improve the reliability. An overvoltage …
Customer ServiceIn this study, an over-current protection method for permanent magnet synchronous motor (PMSM) voltage source inverter (VSI) employing small DC-link …
Customer ServiceThis paper proposes a novel approach to mitigate over-voltage transients caused by DC circuit breaker operation in the LVDC system using a generic energy storage system (GESS). The paper begins by introducing the concept, modeling, coordinated operation …
Customer ServiceA solenoid protection inductor is designed in this paper, which is applied to the energy storage capacitor bank of a large laser fusion facility. The inductor needs to …
Customer ServiceAs modular multilevel converter (MMC) requires a large number of sensors to measure capacitor voltages, reducing the number of sensors for MMC has become an …
Customer ServiceIn order to suppress such huge overvoltage, this paper demonstrates a novel alternative by employing the MMC-based embedded battery energy storage system (MMC-BESS). …
Customer ServiceIn this paper, an overvoltage suppression strategy for permanent magnet synchronous motor system without electrolytic capacitor is proposed based on …
Customer ServiceAiming at the DC overvoltage problem of AC fault on the inverter side of large-capacity LCC-MMC, this paper first studies the causes of DC overvoltage, and …
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