NDLI: Simple discontinuous PWM strategies to reduce the switching losses of an indirect matrix converter

Content Provider	IET Digital Library
Author	Patel, Payal Mulla, Mahmadasraf A.
Abstract	This work proposes the new discontinuous pulse width modulation (DPWM) schemes for an indirect matrix converter (IMC) to reduce the switching losses. The use of discontinuous modulation signals reduces the switching losses of the IMC by reducing the switching counts per cycle of the output converter. The key feature of the proposed schemes is the easy implementation as compared to existing DPWM schemes of the IMC. The major drawback of the existing DPWM schemes is the absence of zero current commutation (ZCC). In the absence of ZCC, the switchings of the input converter are accomplished through four-step commutation which adds the difficulties to the implementation. The proposed scheme overcomes above limitation by using the triangular carrier instead of the sawtooth carrier for the modulation of input converter. Consequently, the ZCC is enabled on the input converter which allows the use of two-step commutation. The two-step commutation simplifies the implementation to a great extent. The presented scheme provides the required input/output performance similar to continuous PWM (CPWM) schemes. The proposed work is verified by the simulation and experimental results. The reduction in the switching losses of the IMC by the new scheme is verified based on the comparison with the CPWM scheme.
Starting Page	2971
Ending Page	2982
Page Count	12
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 14, Nov (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.1600
Journal	IET Power Electronics
Publisher Date	2020-06-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Commutation Continuous PWM Scheme Control of Electric Power System CPWM Scheme Discontinuous Modulation Signal Discontinuous Pulse Width Modulation Scheme Existing DPWM Scheme Four-step Commutation IMC Indirect Matrix Converter Input Converter Matrix Converter Output Converter Power Converter Power Electronics Power Supplies to Apparatus Power Supply Pulse Width Modulation PWM Invertors PWM Power Converter Scheme Overcomes Simple Discontinuous PWM Strategy Supervisory Circuit Switching Converter Switching Counts Switching Loss Switchings Two-step Commutation ZCC Zero Current Commutation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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