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| Neutral-Point Voltage Balancing Control for Three-Level Inverter based on a Time Compensation |
| Bi Changyu |
| School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870 |
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Abstract Because of neutral-point-clamped (NPC) three-level inverter inherent electrical structure, neutral-point Voltage Balancing issue has been an inherent problems in NPC inverter. This paper discusses deeply the root causes of imbalance the neutral-point of the inverter, offering a method based on the time compensation netutral point control method and differring from the PI control. The method is to classify the neutral-point, in order to achieve at different potentials for small vector switching time parameters to achieve different compensation, reaching precise control of the neutral-point control. Matlab/Simulink simulation results show the effectiveness of the neutral-point potential modulation based on the time compensation.
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Received: 22 June 2016
Published: 22 June 2016
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| Cite this article: |
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Bi Changyu. Neutral-Point Voltage Balancing Control for Three-Level Inverter based on a Time Compensation[J]. Electrical Engineering, 2016, 17(6): 9-12.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2016/V17/I6/9
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2016, Vol. 17 
