An SVD-based SVM with common-mode voltage reduction for direct matrix converters

Guan, Quanxue; Wang, Xiaohong; Zhao, Zhuoli; Wang, Lina

doi:10.1109/icpe.2015.7168150

Cited by 3 publications

(5 citation statements)

References 13 publications

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“…In order to reveal such transformation, the SVD technique is applied to the matrix

{bold-italicS}_{x y z}

, on account of the similar geometric operations between SVD and

{bold-italicS}_{x y z}

. This results in a set of multiplied matrices, representing as

{bold-italicS}_{x y z} = U * D * {bold-italicV}^{normalT}

, where both

U

and

V

are unitary matrices, while

D

is a diagonal matrix [36–39]. Note that the SVD technique used in this work is not for principle component analyses but to provide insights to the intrinsic properties of the SSMs of MCs and categorise them into groups, with the help of the geometrical meaning of SVD.…”

Section: Svd‐based Isvm Methodsmentioning

confidence: 99%

Geometrical visualisation of indirect space vector modulation for matrix converters operating with abnormal supplies

Guan

Wheeler

Simon

et al. 2019

IET Power Electronics

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Matrix converters can be sensitive to abnormal supply conditions due to the absence of energy storage elements. This sensitivity can get worse when the matrix converters are modulated by a traditional indirect space vector modulation that assumes the input variables are sinusoidal and balanced. Therefore, this study proposes a methodology for the modulation of matrix converters without requiring any assumption of the input voltages. The method uses a geometric representation based on the singular value decomposition of the switch states to synthesise the rotating vectors of the target duty-cycle matrix. Furthermore, this study mathematically highlights the factors that regulate the amplitude of the output voltages and utilise them to compensate the adverse effect of the abnormal input voltages. Experimental results presented in this study validate that the proposed method can provide sinusoidal and balanced output currents in the presence of abnormal supply conditions.

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“…In order to reveal such transformation, the SVD technique is applied to the matrix

{bold-italicS}_{x y z}

, on account of the similar geometric operations between SVD and

{bold-italicS}_{x y z}

. This results in a set of multiplied matrices, representing as

{bold-italicS}_{x y z} = U * D * {bold-italicV}^{normalT}

, where both

U

and

V

are unitary matrices, while

D

Section: Svd‐based Isvm Methodsmentioning

confidence: 99%

Geometrical visualisation of indirect space vector modulation for matrix converters operating with abnormal supplies

Guan

Wheeler

Simon

et al. 2019

IET Power Electronics

Self Cite

View full text Add to dashboard Cite

show abstract

“…1. If the switches are modeled as ideal switching functions, the voltage relationship between both sides of the MC can be expressed as follows [23]- [26]:…”

Section: A Matrix Converter System Modelmentioning

confidence: 99%

“…Therefore, ignoring the zero-sequence component, the voltage relationship can be expressed in matrix form [23]:…”

Section: A Matrix Converter System Modelmentioning

confidence: 99%

“…It is easy to synthesize these matrices using the first two types of switch states [23]. Since σ q ≡ 0, the q-axis averaged gain g q is equal to zero.…”

Section: Singular Value Decomposition Based Traditional Space Vectmentioning

confidence: 99%

“…This paper presents a CMV-reduced modulation for direct matrix converters based on the singular value decomposition (SVD) on all of the valid switch states [23]- [25]. First, the relationships between the different switch states are found.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Singular Value Decomposition based Space Vector Modulation to Reduce the Output Common-Mode Voltage of Direct Matrix Converters

Guan¹,

Yang²,

Guan³

et al. 2016

Journal of Power Electronics

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Large magnitude common-mode voltage (CMV) and its variation dv/dt have an adverse effect on motor drives that leads to early winding failure and bearing deterioration. For matrix converters, the switch states that connect each output line to a different input phase result in the lowest CMV among all of the valid switch states. To reduce the output CMV for matrix converters, this paper presents a new space vector modulation (SVM) strategy by utilizing these switch states. By this mean, the peak value and the root mean square of the CMV are dramatically decreased. In comparison with the conventional SVM methods this strategy has a similar computation overhead. Experiment results are shown to validate the effectiveness of the proposed modulation method.

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An indirect modulation strategy of matrix converters for unbalanced input supply with reduced commutation losses

Singh

Pattnaik

2021

International Journal of Electronics

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An SVD-based SVM with common-mode voltage reduction for direct matrix converters

Cited by 3 publications

References 13 publications

Geometrical visualisation of indirect space vector modulation for matrix converters operating with abnormal supplies

Geometrical visualisation of indirect space vector modulation for matrix converters operating with abnormal supplies

A Singular Value Decomposition based Space Vector Modulation to Reduce the Output Common-Mode Voltage of Direct Matrix Converters

An indirect modulation strategy of matrix converters for unbalanced input supply with reduced commutation losses

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