| 输出误差函数的交-交矩阵变换器数字PWM调制技术 |
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| 引用本文： | 葛红娟,穆新华,张绍,周波.输出误差函数的交-交矩阵变换器数字PWM调制技术[J].南京航空航天大学学报(英文版),2005,22(4):307-311. |
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| 作者姓名： | 葛红娟 穆新华 张绍 周波 |
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| 作者单位： | 南京航空航天大学自动化学院,南京,210016,中国 |
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| 基金项目： | Supported by the Aeronautical Science Foundation of China （04C52012）; Doctorial Research Foundation of Education Ministry of China （20020287020）. |
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| 摘 要： | 针对矩阵变换器调制方式的特点，提出了基于输出电压误差函数分析的矩阵变换器离散调制技术，推导了基于时间离散和差分原理的电路方程。根据最小误差函数确定矩阵变换器开关模式，实现了系统闭环控制时开关状态的优化组合。利用α-β平面内的空间矢量描述开关组合状态，使得误差函数的计算工作量小、过程简单，易于实现。数字仿真和实验结果验证了时间离散调制技术的正确性和控制方法的可行性。
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| 关 键 词： | 矩阵变换器 时间离散调制 误差函数 开关状态 |
| 收稿时间： | 10 25 2004 12:00AM |
| 修稿时间： | 04 18 2005 12:00AM |
DIGITAL PWM OF AC-AC MATRIX CONVERTER BASED ON OUTPUT-VOLTAGE ERROR FUNCTION |
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| GE Hong-juan,MU Xin-hua,ZHANG Shao,ZHOU Bo.DIGITAL PWM OF AC-AC MATRIX CONVERTER BASED ON OUTPUT-VOLTAGE ERROR FUNCTION[J].Transactions of Nanjing University of Aeronautics & Astronautics,2005,22(4):307-311. |
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| Authors: | GE Hong-juan MU Xin-hua ZHANG Shao ZHOU Bo |
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| Institution: | College of Automation Engineering, NUAA, 29 Yudao Street, Nanjing, 210016,P. R. China |
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| Abstract: | Based on the output-voltage error function, a novel time-discrete modulation technique is proposed for matrix converters (MCs) and time-discrete difference equations of a MC circuit are derived. Switch states of MC are obtained when the output-voltage error function is minimized, thus the optimum combination of switch states is derived for the closed-loop control of MC. Meanwhile, advantages of the least calculation workload, the simple process, and the convenient for implementation are brought while switch states are described as space vectors in the α-β coordination system. Simulation and experimental results demonstrate the validity of the time-discrete modulation technique and the feasibility of the control approach. |
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| Keywords: | matrix converter time-discrete modulation error function switch state |
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