Ride-through capability of adjustable-speed drive during various power quality events using supercapacitor

Deswal, S. S.; Dahiya, Ratna; Jain, Dinesh Kumar

doi:10.1109/epec.2009.5420891

Cited by 4 publications

(1 citation statement)

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“…Another aspect that should be considered in the design of the ASD drive is the allocation of the inductor to attenuate the current harmonics. In [25] the use of the AC or DC inductor was studied. It was shown that the performance of the two ASD configurations are almost identical if the inductance of the DC bus choke inductor is twice the value of each line inductor.…”

Section: Introductionmentioning

confidence: 99%

Dual 3-Phase Bridge Multilevel Inverters for AC Drives with Voltage Sag Ride-through Capability

2019

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One of the main power quality issues that can affect variable speed drives (VSDs) is the occurrence of voltage sags on their AC power supply. Voltage sags can affect the inverter nominal operation, leading to a malfunction of the AC motor. This paper presents an inverter with resilient capability to voltage sags. The topology consists of two conventional three-phase bridge inverters arranged to require just a single DC source. This inverter is also characterized by a voltage multilevel operation, providing the full advantages of multilevel converters without the need for level balancing. Associated with this AC motor driver, a control system based on a field-oriented controller with a vector voltage modulator that will enable voltage sag ride-through capability is proposed. The proposed control system does not require any changes in the occurrence of voltage sags. To verify the characteristics of the proposed drive and control system, simulation tests are provided. Simulation results confirm the voltage sag resilient capability of the proposed multilevel converter.

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Section: Introductionmentioning

confidence: 99%