| 等效开关倍频技术在串联型电能质量控制装置中的应用 |
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| 引用本文： | 陈继承,钱照明,吕征宇,陈国柱. 等效开关倍频技术在串联型电能质量控制装置中的应用[J]. 电源学报, 2004, 2(1): 54-57 |
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| 作者姓名： | 陈继承 钱照明 吕征宇 陈国柱 |
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| 作者单位： | 浙江大学,信息科学与电子工程学院;浙江大学，电气工程学院;浙江大学，电气工程学院;浙江大学，电气工程学院 |
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| 摘 要： | 逆变器是串联型电能质量控制装置的重要组成部分，由于开关器件开关频率的限制，逆变器输出含有很大的开关倍谐波成分，这些谐波会影响逆变器的补偿成分输出并且对输出端滤波器的设计带来极大的困难，进而影响到装置的电能质量补偿效果和系统的稳定性。该文通过对两种调制模式下逆变器输出谐波成分讨论分析，论证了等效开关倍频技术可以有效降低逆变器输出谐波含量，同时不影响逆变器补偿输出增益。
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| 关 键 词： | 逆变器、谐波、SPWM、倍频 |
| 收稿时间： | 2004-01-07 |
Equivalent Double-frequency Switching Technique Applied in Series Power Quality Control Equipments |
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| Affiliation: | Zhejiang University, Department of information science;Zhejiang University, Electronic Engineering, Hangzhou 310027;Zhejiang University, Electronic Engineering, Hangzhou 310027;Zhejiang University, Electronic Engineering, Hangzhou 310027 |
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| Abstract: | As a essential part of series power quality control equipments, the inverter outputs abundant switching times harmonic components due to the limits of switch frequency, which inevitably impairs the effects of compensation, reduces the stability of power system and augments the difficulty of filter design in the output of inverter. Through the analysis of inverter output harmonic components in two different modulation modes, the paper puts up the idea of applying equivalent double-frequency switching technique to effective depress the harmonic contents of inverter output and maintain the gains of available components. |
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| Keywords: | inverter harmonic SPWM double-frequency |
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