| 引用本文: | 郝江涛,刘念,幸晋渝,薄丽雅,陈卓.电力系统间谐波分析[J].电力自动化设备,2004,(12):36-39 |
| .Study on interharmonic of power system[J].Electric Power Automation Equipment,2004,(12):36-39 |
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| 摘要: |
| 间谐波是电力系统中一种特殊的谐波。提出了用离散／快速傅里叶变换分析间谐波时应注意的一些问题，指出如何正确识别间谐波和选择适当的信号采样窗宽度。分析了电力系统中各种间谐波源，包括变频装置、波动负荷、铁磁谐振、同步串级调速装置及感应电动机，阐述了间谐波的各种危害，如波形畸变、灯光闪烁及对测量仪表、电动机、功率因数的影响。 |
| 关键词: 间谐波 电力系统 来源 危害 |
| DOI： |
| 分类号:TM711 |
| 基金项目: |
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| Study on interharmonic of power system |
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HAO Jiang-tao LIU Nian XING Jin-yu BO Li-ya CHEN Zhuo
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| Abstract: |
| Interharmonic is special harmonic in electric power systems. Attention should be paid to some facts in interharmonic analysis using DFT/FFT. Ways to correctly identify interharmonic and select suitable width of signal sampling window are introduced. The interharmonic sources in power system are analyzed,such as converter equipment,fluctuating load,ferro-resonance,synchronous regulator cascade and induction motor. Its harms are expounded,including waveform distortion,light flicker and influences on measuring instrument,motor and power factor. |
| Key words: interharmonic,power system,source,harm |
