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MA Kai,YU Jiali.Design and Experimental Study of the Control System of MMC Based on TMS28035[J].JOURNAL OF POWER SUPPLY,2018,16(3):137-143
Design and Experimental Study of the Control System of MMC Based on TMS28035
Received:May 24, 2016  Revised:January 12, 2017
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DOI:10.13234/j.issn.2095-2805.2018.3.137
Keywords:modular multilevel converter (MMC)  time-sharing detection of capacitance voltage  TMS28035
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MA Kai School of Electrical and Information Engineering, Tianjin University, Tianjin , China 1539604091@qq.com
YU Jiali School of Electrical and Information Engineering, Tianjin University, Tianjin , China
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Abstract:
      The measurement method for the module capacitance voltage of a modular multilevel converter(MMC) was studied through simulations and experiments. A bridge-arm needed only one voltage sensor to measure the capacitor voltage of the bridge-arm PWM modulation unit, while the capacitance voltage of a non-modulation unit was obtained according to bridge-arm current integral. In consideration of two indexes(i.e., switching loss and capacitance voltage balan-ce), two switching modes of module were comprehensively utilized. Experiments were designed based on TMS28035, and the results verified the validity and effectiveness of the proposed control method.
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