Das, S and Hari, VSSPK and Kumar, A and Narayanan, G (2019) Analysis of generalized continual-clamp and split-clamp PWM schemes for induction motor drive. In: Sadhana - Academy Proceedings in Engineering Sciences, 44 (2).
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Abstract
Continual-clamp pulse width modulation (CCPWM) clamps each phase of a three-phase inverter to one of the two dc buses continually for 60 ∘ duration in each half of the fundamental cycle. Split-clamp pulse width modulation (SCPWM) divides the 60 ∘ clamping interval into two sub-intervals, which are not necessarily equal, and falling in two different quarter cycles. Whether continual clamp or split clamp, the positioning of the clamping interval in case of CCPWM, and the ratio of splitting the clamping interval in SCPWM – all influence the waveform quality of the inverter output. This paper derives analytically closed-form expressions for the total RMS harmonic distortion factor and torque ripple factor pertaining to CCPWM with any arbitrary position of the clamping interval (i.e., generalized CCPWM) and also corresponding to SCPWM with any arbitrary ratio of splitting of the clamping interval (i.e., generalized SCPWM). The analytical results are well supported by experimental results on 3-hp and 5-hp induction motor drives.
| Item Type: | Journal Article |
|---|---|
| Publication: | Sadhana - Academy Proceedings in Engineering Sciences |
| Publisher: | Springer |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | Electric drives; Electric inverters; Electric motors; Harmonic analysis; Harmonic distortion; Induction motors; Quality control; Voltage control, Closed-form expression; Discontinuous PWM; Pulsating torque; Voltage source inverter; Waveform quality, Pulse width modulation |
| Department/Centre: | Division of Electrical Sciences > Electrical Engineering |
| Date Deposited: | 28 Oct 2022 06:12 |
| Last Modified: | 28 Oct 2022 06:12 |
| URI: | https://eprints.iisc.ac.in/id/eprint/77732 |
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