Predictive Algorithm for Control of Common Mode Voltage and Switching Frequency in Direct Matrix Converter Fed System

Qazi, Sohaib A.; Mir, Tabish Nazir; Bhat, Abdul Hamid; Singh, Bhim

doi:10.1109/tie.2021.3128889

Cited by 7 publications

(1 citation statement)

References 22 publications

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“…In addition, there is a potential risk of overcurrent fault caused by the phase-leg short circuit error, which further reduces the system reliability. Besides of VSIs, a lot of work has been done to mitigate CMV peak value in a direct or indirect matrix converter (MC) [14][15][16]. As a topology without dc-link decoupling components, MC shows a good flexibilty to realise ac-ac power conversion.…”

Section: Introductionmentioning

confidence: 99%

High‐frequency common‐mode voltage mitigation for current‐source inverter in transformerless photovoltaic system using active zero‐state space vector modulation

Gao

2022

IET Electric Power Appl

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Space vector modulation (SVM) schemes with leakage current mitigation capability for current‐source inverters (CSIs) in transformerless photovoltaic (PV) systems have not been well explored yet. In this study, the advantage of a special SVM scheme, called active zero‐state SVM (AZS‐SVM), on suppressing high‐order harmonics in the common‐mode voltage (CMV) is revealed and theoretically analysed, since the high‐frequency components in the CMV have decisive impacts on the generated leakage current. A five‐segment sequence is proposed for AZS‐SVM applied for CSIs. Both simulation and experiments are conducted on a (2.5 kW/208 V/6.94 A) grid‐connected three‐phase CSI, which validates the effectiveness of the designed AZS‐SVM to mitigate the CMV high‐order harmonics when compared to that by conventional SVM under different operating conditions.

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Section: Introductionmentioning

confidence: 99%