Maximum Voltage Transfer Ratio of Matrix Converter Under DTC With Rotating Vectors

Deng, Weitao

doi:10.1109/tpel.2020.3033414

Cited by 15 publications

(9 citation statements)

References 15 publications

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“…It has been demonstrated that CMCs can achieve much higher power density and efficiency than B2B converters [7]- [9]. Therefore, CMCs have received extensive and continuous attention for decades [10]- [12]. Nevertheless, the input and output control of CMCs are tightly coupled in the modulation, resulting in the complex switching sequences for normal operation.…”

Section: Introductionmentioning

confidence: 99%

Matrix Converter Based on Trapezoidal Current Injection

Lei

Huang

Wheeler

et al. 2023

IEEE J. Emerg. Sel. Topics Power Electron.

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The Matrix Converter (MC) is a direct AC-AC power converter featuring high power density and high efficiency. However, the conventional MC (CMC) topologies require high control complexity and high transistor capacity, hindering the wide applications. An emerging MC topology (3CI-MC) based on the third-harmonic current injection (3CI) reduces the control complexity, but require more transistors and complex clamping circuit. This paper proposes the trapezoidal current injection (TCI) technique to form a novel MC topology (TCI-MC), which consists of a line-commutated converter (LCC), a TCI circuit and a voltage source converter (VSC). Compared with the 3CI-MC, the proposed TCI-MC not only maintains the advantages of simple modulation and independent voltage control, but also achieves lower current stress on the LCC part of the circuit. The total transistor capacity of the proposed TCI-MC is the lowest among all the considered MC topologies. The clamping circuit is also simplified and the bidirectional switches are eliminated, reducing the implementation cost. Simulation and experimental results have verified the validity of the proposed topology.

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Section: Introductionmentioning

confidence: 99%

Matrix Converter Based on Trapezoidal Current Injection

Lei

Huang

Wheeler

et al. 2023

IEEE J. Emerg. Sel. Topics Power Electron.

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“…On the other hand, direct torque control using only RVs can achieve greater voltage gain q = 0. 833, as shown in [41]. To increase voltage gain up to q = 1.…”

Section: Introductionmentioning

confidence: 99%

Improvement of two grid power factor control methods for matrix converter open‐end‐winding drive with common‐mode voltage elimination supplied by unbalanced grid

Stanić

Ristic

Bebić

et al. 2022

IET Power Electronics

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This paper investigates space‐vector‐modulation (SVM) technique that uses only rotating space vectors to drive a direct matrix converter (DMC) with zero common‐mode voltage (CMV). Two methods for controlling grid power factor have been proposed in the literature for such a drive. Until now, analysis has been limited to balanced grid conditions. However, total harmonic distortion (THD) of grid currents significantly increases under unbalanced conditions. Hence, the aims of this paper are: (1) derivation of DMC model consisting of general equations for output voltages and input currents, written in the complex form. (2) Analysis and comparison of two existing methods for grid power factor control under balanced grid conditions, by using the previously derived model. (3) Proposal of extended versions of both methods in order to improve converter's performance under unbalanced grid conditions. The proposed control strategy aims to achieve sinusoidal currents and maintain the same power factor on the grid side while completely compensating grid unbalance on the load side. (4) Determination of the maximum transfer ratio under balanced and unbalanced grid conditions. Experimental results with Hardware In the Loop (HIL) are provided to verify the theoretical analysis and effectiveness of the proposed control strategy.

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“…ATRIX converter (MC) has attracted a lot of attention due to its inherent advantages, such as bi-directional energy flow, controllable input power factor, the potential for high power density, and the lack of bulky dc-link capacitors [1][2][3][4]. Previous studies are mainly concentrated on the modulation and the switching pattern of the MC [5]- [6]. High-performance speed control for MC-fed induction motors (IM) has received less attention.…”

Section: Introductionmentioning

confidence: 99%

Model predictive control-based direct torque control for matrix converter-fed induction motor with reduced torque ripple

Huang

Zeng

Xiong

et al. 2021

Trans. Electr. Mach. Syst.

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To reduce the torque ripple in motors resulting from the use of conventional direct torque control (DTC), a model predictive control (MPC)-based DTC strategy for a direct matrix converter-fed induction motor is proposed in this paper. Two new look-up tables are proposed, these are derived on the basis of the control of the electromagnetic torque and stator flux using all the feasible voltage vectors and their associated switching states. Finite control set model predictive control (FCS-MPC) has then been adopted to select the optimal switching state that minimizes the cost function related to the electromagnetic torque. Finally, the experimental results are shown to verify the reduced torque ripple performance of the proposed MPC-based DTC method.Index Terms-Direct torque control, finite control set model predictive control, induction motor, matrix converter.

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Maximum Voltage Transfer Ratio of Matrix Converter Under DTC With Rotating Vectors

Cited by 15 publications

References 15 publications

Matrix Converter Based on Trapezoidal Current Injection

Matrix Converter Based on Trapezoidal Current Injection

Improvement of two grid power factor control methods for matrix converter open‐end‐winding drive with common‐mode voltage elimination supplied by unbalanced grid

Model predictive control-based direct torque control for matrix converter-fed induction motor with reduced torque ripple

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