101. Research on Output Voltage Modulation of a Five-Level Matrix Converter.
- Author
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Qiu, Lin, Xu, Lie, Wang, Kui, Zheng, Zedong, and Li, Yongdong
- Subjects
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MATRIX converters , *ELECTRONIC modulation , *VOLTAGE control , *CAPACITORS , *ELECTRIC power systems , *ENERGY conversion - Abstract
The matrix converter (MC) is a direct ac–ac power converter without an intermediate dc link. It has several attractive features, such as high power density, four-quadrant operation, and bidirectional power flow. However, the application of MCs in high-voltage and high-power systems is still limited by the device voltage levels. It is well known that the multilevel power converter technology can be a solution to enhance the voltage rating and improve harmonic performance in many applications. Therefore, an application of a multilevel topology based on a direct ac–ac power converter is proposed in this paper. This paper first introduce the topology structure, the switching pattern grouping method, and the proposed output voltage modulation method for a five-level capacitor clamped multilevel matrix converter (5LMC). Amplitude coefficient adjustment is also introduced as a part of modulation procedure to simplify the duty cycles calculation. Simulation from MATLAB/Simulink is given to demonstrate the theoretical work. Experimental results from a five-level matrix converter prototype are presented to validate the theoretical findings. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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