A Fault-Tolerant Strategy to Control the Matrix Converter Under an Open-Switch Failure

Dasika, Jaya Deepti; Saeedifard, Maryam

doi:10.1109/tie.2014.2341565

Cited by 19 publications

(14 citation statements)

References 20 publications

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“…3 shows that two values of the virtual dc-link voltage are provided over a switching period. Indeed, the voltage V dc is equal to E ab during the application of the first switching state [1][2][3][4][5][6][7][8][9][10]. It becomes equal to -E ca during the application of the second switching state .…”

Section: Operation Principle and Svpwm Control Technique Of The Rmentioning

confidence: 99%

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A Hybrid Modulation Scheme for Dual-Output Five-Leg Indirect Matrix Converter

Hamouda

Blanchette

Al‐Haddad

2016

IEEE Trans. Ind. Electron.

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Abstract-this paper proposes a hybrid modulation method for a dual-output five-leg indirect matrix converter topology. The proposed control technique combines a space vector modulation scheme (SVPWM) applied to the rectifier stage so as to control the input currents and a new digital scalar modulation scheme (DSPWM) designed to control the two loads output voltages. A generalized expression of the output voltage references is also developed showing the capability of the proposed method to control more than two independent loads without requiring additional mathematical development. Furthermore, a new modified expression of the output voltages references is proposed to enable the correct operation of the converter under unbalanced grid voltages. Also, the paper proposes a detailed mathematical analysis that allows evaluating the effect of output loads unbalances on the input current harmonic content. Simulation and experimental results are provided to show the effectiveness of the proposed theoretical investigations and confirm the capability of the proposed method to control multiple drive systems as well as ac input currents.Index Terms-ac/ac conversion, carrier-based pulse width modulation (SPWM), dual-output converter, faulttolerant operation, grid-connected converters, load unbalance, matrix converters, multi-drive systems, scalar modulation, space vector modulation (SVPWM), unbalanced grid voltages.

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Section: Operation Principle and Svpwm Control Technique Of The Rmentioning

confidence: 99%

“…Their more important benefit over traditional ac/dc/ac power conversion topologies is the absence of electrolytic dc-bus bulky capacitors [3] [4]. The latter is suitable to design high compact and reliable power supplies operating in hostile environment such as high temperatures and high pressures.…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Modulation Scheme for Dual-Output Five-Leg Indirect Matrix Converter

Hamouda

Blanchette

Al‐Haddad

2016

IEEE Trans. Ind. Electron.

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“…Due to above advantages, the matrix converter has gained considerable attention from researchers . At present, research on matrix converters mainly focuses on three‐phase‐three‐phase matrix converters (3‐3MCs), including new topologies, control strategies, overmodulation methods, common mode voltage suppression, and fault tolerance . In recent years, the application of matrix converters has been studied from variable frequency speed regulation to distributed power transmission, wind power generation, and other fields in academia and industry.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the input performance of a three‐phase‐single‐phase matrix converter based on space vector modulation

Cai

Jiang

2020

Circuit Theory & Apps

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Summary A 6‐switch three‐phase to single‐phase matrix converter (3‐1MC) with independent neutral line is directly coupled to the input side through bidirectional switches, and the output ripple power produces low‐frequency harmonics in the input side that are difficult to filter out. In this paper, the expressions of the frequencies and contents of the low‐frequency harmonics are derived based on the principle of input‐output instantaneous power conservation. Then, a 3‐1MC topology with decoupling unit is studied and the working principle and process of improving the input performance are analyzed. Second, based on the relationship between the output side and the decoupling side modulation function, the influence of the introduction of the decoupling unit on the maximum voltage transfer ratio of 3‐1MC is studied. The relationship between the voltage transfer ratio and parameters such as decoupling unit and output frequency is derived in detail. It is proved that maximum voltage transfer ratio of the topology is a nonlinear function related to system parameters. Then, the operating principle and modulation method of 3‐1MC are discussed. A double‐side current closed‐loop control strategy based on space vector modulation under power decoupling conditions is proposed. Finally, an experimental platform is built to verify that the 3‐1MC with decoupling unit can suppress the low‐frequency harmonics in the input current at different output frequencies and effectively improve the performance of the input side. The results show that the 3‐1MC with the decoupling unit is beneficial for use in single‐phase applications.

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“…This would accelerate the damage in a normal switch and lead to the occurrence of a secondary fault. If the faulty switch is not located in time, fault tolerant operation of the MC [8]- [9] cannot follow the isolating of the faulty switch. Therefore, issues, including real-time monitoring of the operating state and fault diagnosis of the MC, are gradually brought into sharp focus due to the demands for high reliability and lifetime.…”

Section: Introductionmentioning

confidence: 99%

Error-Voltage-Based Open-Switch Fault Diagnosis Strategy for Matrix Converters with Model Predictive Control Method

Huang

Peng

et al. 2017

IEEE Trans. on Ind. Applicat.

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Abstract-This paper proposes an error-voltage based open-switch fault diagnosis strategy for matrix converter (MC).A finite control set model predictive control (FCS-MPC) method is used to operate the MC. The MC system performances under normal operation and under a single open-switch fault operation are analyzed. A fault diagnosis strategy has also been implemented in two steps. First, the faulty phase is detected and identified based on a comparison of the reference and estimated output line-to-line voltages. Then, the faulty switch is located by considering the switching states of the faulty phase. The proposed fault diagnosis method is able to locate the faulty switch accurately and quickly without additional voltage sensors. Simulation and experimental results are presented to demonstrate the feasibility and effectiveness of the proposed strategy.

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A Fault-Tolerant Strategy to Control the Matrix Converter Under an Open-Switch Failure

Cited by 19 publications

References 20 publications

A Hybrid Modulation Scheme for Dual-Output Five-Leg Indirect Matrix Converter

A Hybrid Modulation Scheme for Dual-Output Five-Leg Indirect Matrix Converter

Improvement of the input performance of a three‐phase‐single‐phase matrix converter based on space vector modulation

Error-Voltage-Based Open-Switch Fault Diagnosis Strategy for Matrix Converters with Model Predictive Control Method

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