| 一种三电平特定消谐脉宽调制的优化方法 |
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| 引用本文： | 吴春晖,姜齐荣,张春朋. 一种三电平特定消谐脉宽调制的优化方法[J]. 电力电子技术, 2005, 39(5): 18-20 |
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| 作者姓名： | 吴春晖 姜齐荣 张春朋 |
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| 作者单位： | 1. 清华大学,北京,100084
2. 北京四方清能电气电子有限公司,北京,100085 |
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| 摘 要： | 在静止无功补偿装置的各种脉宽调制策略中,特定消谐是一种常用的方法。该文以三电平三单相配电网静止无功补偿器为研究对象,将数值方法求解三电平特定消谐开关角度的问题细分为两种情况,分别给出了各自适用的迭代初值公式。在此基础上,提出了一种开关角度的优化方法,使逆变器输出电压在较低的开关频率下获得更好的谐波特性。算例和实验结果均表明,该优化方法具有良好的收敛性,可以获得较好的消谐效果。
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| 关 键 词： | 无功补偿 脉宽调制/三电平 特定消谐 电网静止无功补偿器 |
| 修稿时间： | 2005-07-30 |
An Optimization Method for Three-level SHEPWM |
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| WU Chun-hui,JIANG Qi-rong,ZHANG Chun-peng. An Optimization Method for Three-level SHEPWM[J]. Power Electronics, 2005, 39(5): 18-20 |
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| Authors: | WU Chun-hui JIANG Qi-rong ZHANG Chun-peng |
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| Affiliation: | 1.Tsinghua University, Beijing 100084, China; 2.SF-Power Electric Co., Ltd., Beijing 100085, China |
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| Abstract: | Among the PWM strategies for static compensator,the Selective Harmonic Eliminated Pulse Width Modulation (SHEPWM) is a widely used method.Based on three-level three-single-phase DSTATCOM,SHEPWM is divided into two cases with different initial value formulas.The paper presents an optimization method, which makes better output voltage harmonic characteristic with low switching frequency. The Calculation examples and experiment result both show that the optimization method has good convergence and harmonic elimination effect. |
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| Keywords: | var compensation / three-level SHEPWM Distribution Static Compensator (DSTATCOM) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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