Distortion Compensation Control Designed for H-Bridge Cascade Multi-Level Converter under Low Speed Condition

被引：0
|
作者：
Zhang L. [1 ,2 ]
Chen G. [3 ]
Zhu J. [2 ]
Yuan Y. [4 ]
Shui H. [1 ]
机构：
[1] School of Power Electric Engineering, Nanjing Institute of Technology, Nanjing
[2] State Lab of Intelligent Technology and Systems, Tsinghua University, Beijing
[3] Shanghai Electric Power Transmission & Distribution Group, Shanghai
[4] Jiangsu Electric Power Research Institute, Nanjing
来源：
Zhang, Liang (zhldream@126.com) | 1600年 / China Machine Press卷 / 32期
关键词：
Cascade multi-level; Distortion compensation; Vector control;
D O I：
10.19595/j.cnki.1000-6753.tces.160257
中图分类号：
学科分类号：
摘要：
Under low speed condition, the output voltage distortion of the cascade multilevel converter by low index modulation and dead-time is existed. In the paper, a novel vector control is presented to compensate the current distortion. A vector control scheme was put forward for asynchronous machine driven by a cascaded multi-level inverter to compensate dead-time effect of inverter and provide sinusoidal currents. The distortion causes and distortion component extraction method were analyzed in detail. Meanwhile, based on the least squares method, a PID time-delay compensator for enhancing the system response property is devised. Finally, the experimental test platform for the prototype is designed. The simulation results and experimental data show the effectiveness of the proposed algorithm. © 2017, The editorial office of Transaction of China Electrotechnical Society. All right reserved.
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页码：13 / 21
页数：8
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