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Filtering by: Subject Electric inverters. Subject Variable speed drives

Investigation and mitigation of the adverse effects of PWM adjustable speed drives

Creator:

Zhang, Haoran

Abstract:

With the introduction of high speed semiconductor power devices and the increased application of adjustable speed drives (ASDs) for efficient speed control of ac motors, there has been a growing number of costly motor-drive related process failures. It has been found that the high dv/dt and high switching frequency have...

Resource Type:

Dissertation

Full Text:

inverter provides a very efficient way of manipulating the electric power to control ac motors, this
A DSP controlled multi-level inverter providing DC-link voltage balancing, ride-through enhancement and common-mode voltage elimination

Creator:

Dai, Shaoan

Abstract:

With the development of high performance power electronic and semiconductor technologies, Adjustable Speed Drive (ASD) systems are increasingly applied in residential, commercial and industrial applications. Due to the advantages at higher power ratings, the three-level Neutral-Point-Clamped (NPC) Voltage Source Inverter (VSI) is being employed in industrial and traction applications, static...

Resource Type:

Dissertation

Full Text:

Controlled Multi-Level Inverter Providing DC-Link Voltage Balancing, Ride-Through Enhancement and Common