Seven Level Cascaded H-bridge Multilevel Inverter with Discrete Variation of DC Sources

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Behzadi Nezhad Ahmad; Namadmalan Alireza

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Journal Paper

Paper Information

Journal: TABRIZ JOURNAL OF ELECTRICAL ENGINEERING Year:2019 | Volume:49 | Issue:4 (90) Page(s): 1505-1515

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Information Journal Paper

Title

Seven Level Cascaded H-bridge Multilevel Inverter with Discrete Variation of DC Sources

Author(s)

Behzadi Nezhad Ahmad | Namadmalan Alireza | Issue Writer Certificate

Keywords

Cascaded H-bridge multilevel inverterQ1

variable DC sourcesQ1

total harmonic distortionQ1

Abstract

In low switching frequency strategies, regulated DC sources along with the switching angles increase the system’ s degrees of freedom to effectively mitigate or eliminate harmonics. Utilizing the variable DC sources increase the cost, losses and complexity of the system. This paper presents a new method for Cascaded H-bridge multilevel inverters based on discrete variable DC source to reduce number of the regulated DC sources. In this paper, an optimization procedure for output voltage regulation is devised based on the discrete variable DC sources, which results in effective reduction of harmonics and improvement of the output voltage quality. In the optimization method, the near optimum values of DC sources and switching angles are obtained using multi objective genetic algorithm. To verify the feasibility of the new solution, a laboratory prototype is implemented based on seven level cascaded H-bridge inverter with three cells in each phase. Simulation and experimental results validate the effectiveness of the proposed method based on the discrete variable DC sources in reduction of harmonics and voltage regulation.

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APA: Copy

Behzadi Nezhad, Ahmad, & Namadmalan, Alireza. (2019). Seven Level Cascaded H-bridge Multilevel Inverter with Discrete Variation of DC Sources. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 49(4 (90) ), 1505-1515. SID. https://sid.ir/paper/385178/en

Vancouver: Copy

Behzadi Nezhad Ahmad, Namadmalan Alireza. Seven Level Cascaded H-bridge Multilevel Inverter with Discrete Variation of DC Sources. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING[Internet]. 2019;49(4 (90) ):1505-1515. Available from: https://sid.ir/paper/385178/en

IEEE: Copy

Ahmad Behzadi Nezhad, and Alireza Namadmalan, “Seven Level Cascaded H-bridge Multilevel Inverter with Discrete Variation of DC Sources,” TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, vol. 49, no. 4 (90) , pp. 1505–1515, 2019, [Online]. Available: https://sid.ir/paper/385178/en

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