NDLI: Carrier-based PWM control strategy for Z-source two-stage matrix converter

Content Provider	IET Digital Library
Author	Wang, Rutian Han, Xu Liu, Chuang Zhao, Yanfeng Zhang, Jiawei
Abstract	In the Z-source two-stage matrix converter (ZSTSMC), the unique shoot-through state of the Z-source network can increase the voltage transfer ratio. Its maximum value can reach 4.33. In order to solve the complexity of space vector pulse width modulation (SVPWM) for ZSTSMC, a carrier-based PWM (CBPWM) control strategy is proposed. The duty ratios of the rectifier stage and inverter stage are calculated by the SVPWM method. A carrier is constructed and combined with duty ratios to produce regular modulation waves of rectifier stage and inverter stage. Then, the inserted mode of the shoot-through state is optimised by analysing. The position of its insertion is adjusted so that the expressions of the shoot-through modulation wave is simple and regular. And the number of modulation waves is reduced from 5 to 4. Next, the modulation waves are compared with a carrier to obtain pulse signals which are used to produce driving signals through logic operation. The ZSTSMC is controlled by this strategy to obtain three-phase symmetrical sinusoidal input and output waveforms. The proposed method is identical in output to the SVPWM method. Finally, the experimental results are provided to verify the feasibility and validity of the proposed method.
Starting Page	3527
Ending Page	3538
Page Count	12
ISSN	17554535
Volume Number	12
e-ISSN	17554543
Issue Number	Issue 13, Nov (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/12/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.0029
Journal	IET Power Electronics
Publisher Date	2019-07-26
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Carrier Wave Carrier-based PWM Control Strategy Control of Electric Power System Duty Ratios Inverter Stage Invertors Matrix Converter Power Converter Power Electronics Power Supplies to Apparatus Power Supply Pulse Width Modulation PWM Invertors PWM Power Converter Rectifier Stage Regular Modulation Wave Shoot-through Modulation Wave Source Network Source Two-stage Matrix Converter Space Vector Pulse Width Modulation Supervisory Circuit SVPWM Method Switching Converter Unique Shoot-through State Voltage Transfer Ratio ZSTSMC
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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