An indirect matrix converter for dual output AC-drive system with reduced number of power transistors

Bak, Yeongsu; Lee, Eunsil; Lee, Kyo‐Beum

doi:10.1109/cencon.2014.6967530

Cited by 5 publications

(8 citation statements)

References 6 publications

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“…This architecture removes phase‐shifting transformers and dc‐link components compared to other dual drive systems 16,17 . This method makes the MC small for many applications 18,19 . Recent technical articles have explored not just the IMC structure for certain applications but also modulation techniques to efficiently drive IMC 20,21 .…”

Section: Introductionmentioning

confidence: 99%

Multiple load operation of indirect matrix converter for different frequencies using symmetrical space vector modulation

Khanday

Bhat

Sekhar

2023

Circuit Theory & Apps

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This study describes an indirect matrix converter (IMC) that uses symmetrical space vector pulse width modulation (SSVPWM) to feed two loads from a single DC link at a variable frequency. Output stage‐I is connected to the static load, while output stage‐II is connected to the PMSM for speed control. It is appropriate for drive systems with variable frequency, such as those seen in wind power generation and aviation. In recent years, significant studies on AC‐AC converters have been conducted due to the rising interest in electric cars and renewable energy. The performance of permanent magnet motors is better than that of other types of AC motors due to their superior performance and residual flux permanent magnets. Contrary to normal back‐to‐back power conversion systems, IMC does not necessitate the use of capacitors in the DC‐link, decoupled control between the two‐stages, a simple clamping circuit or zero current switching in the rectifier stage, allowing the system's volume to be reduced. It is investigated how well the two output stages of the proposed IMC perform. To illustrate the benefits of the suggested IMC design, an improved SSVPWM is employed, and MATLAB/SIMULINK‐based simulations were performed to validate the efficacy of the modulation mechanism. In addition, the real‐time implementation of the work was validated using a real‐time simulator, OPAL‐RT (OP4510).

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Section: Introductionmentioning

confidence: 99%

Multiple load operation of indirect matrix converter for different frequencies using symmetrical space vector modulation

Khanday

Bhat

Sekhar

2023

Circuit Theory & Apps

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“…The space vector pulse width modulation (SVPWM) strategy is proposed to control ZSTSMC in [7][8][9][10][11][12][13], respectively. In [7], the rectifier stage contains zero vectors, which makes the average DClink voltage is stable in each switching period, and the modulation ratio of the inverter stage does not need correction timely.…”

Section: Introductionmentioning

confidence: 99%

“…However, the voltage utilisation is low. So, the SVPWM strategy is optimised in [8][9][10]. The rectifier stage does not contain zero vectors, which improves the voltage utilisation and achieves zero current safe commutation.…”

Section: Introductionmentioning

confidence: 99%

Carrier‐based PWM control strategy for Z ‐source two‐stage matrix converter

Wang

Han

Liu

et al. 2019

IET Power Electronics

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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.

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“…Among the DC-link components, the capacitor is bulky and has a short lifetime compared to other power electronics components. As a result, general dual AC-drive systems with two inverters and DC-link elements have disadvantages including as low efficiency, high volume and short lifetime [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Indirect Matrix Converter for Hybrid Electric Vehicle Application with Three-Phase and Single-Phase Outputs

Bak

Lee

2015

Energies

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This paper presents an indirect matrix converter (IMC) topology for hybrid electric vehicle (HEV) application with three-phase and single-phase outputs. The HEV includes mechanical, electrical, control, and electrochemical systems among others. In the mechanical system, a traction motor and a compressor motor are used to drive the HEV. The traction motor and the compressor motor are usually operated as three-phase and single-phase motors, respectively. In this respect, a dual AC-drive system can operate the traction and the compressor motor simultaneously. Furthermore, compared to a conventional dual matrix converter system, the proposed topology can reduce the number of switches that the dual outputs share with a DC-link. The application of this system for HEV has advantages, like long lifetime and reduced volume due to the lack of a DC-link. The proposed control strategy and modulation schemes ensure the sinusoidal input and output waveforms and bidirectional power transmission. The proposed system for the HEV application is verified by simulation and experiments.

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An indirect matrix converter for dual output AC-drive system with reduced number of power transistors

Cited by 5 publications

References 6 publications

Multiple load operation of indirect matrix converter for different frequencies using symmetrical space vector modulation

Multiple load operation of indirect matrix converter for different frequencies using symmetrical space vector modulation

Carrier‐based PWM control strategy for Z ‐source two‐stage matrix converter

Indirect Matrix Converter for Hybrid Electric Vehicle Application with Three-Phase and Single-Phase Outputs

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