| 水轮发电机低频振动的测量研究 |
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| 引用本文： | 肖明伟,杨永明,钟玉林,付志红,张淮清.水轮发电机低频振动的测量研究[J].传感器与微系统,2011,30(5):54-57. |
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| 作者姓名： | 肖明伟 杨永明 钟玉林 付志红 张淮清 |
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| 作者单位： | 肖明伟,杨永明,付志红,张淮清,XIAO Ming-wei,YANG Yong-ming,FU Zhi-hong,ZHANG Huai-qing(重庆大学,输配电装备及系统安全与新技术国家重点实验室,重庆,400044);钟玉林,ZHONG Yu-lin(重庆地质仪器厂,重庆,400030) |
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| 基金项目： | 国家自然科学基金资助项目，重庆大学"211工程"三期创新人才培养计划建设项目 |
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| 摘 要： | 水电机组振动参数是监测其运行稳定性的主要指标,且振动频率较低。为测量大中型水电机组低频振动,根据振动传感器频率特性补偿原理,设计了低频补偿电路,使其频率特性向低频拓展。为滤波电路的设计方便,引进了等效品质因数Q。阐述了磁电式振动传感器的数学模型,补偿电路的设计,将传感器系统与其数学模型的幅频特性在校正前、后分别进行对比分析。实验结果表明:补偿后该系统幅频特性能够向低频拓展,且稳定度、线性度等性能较好。
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| 关 键 词： | 传感器 振动 幅频特性 补偿电路 传递函数 灵敏度 |
Research on the measurement of low-frequency vibration of water turbine generators |
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| XIAO Ming-wei,YANG Yong-ming,ZHONG Yu-lin,FU Zhi-hong,ZHANG Huai-qing.Research on the measurement of low-frequency vibration of water turbine generators[J].Transducer and Microsystem Technology,2011,30(5):54-57. |
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| Authors: | XIAO Ming-wei YANG Yong-ming ZHONG Yu-lin FU Zhi-hong ZHANG Huai-qing |
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| Affiliation: | XIAO Ming-wei1,YANG Yong-ming1,ZHONG Yu-lin2,FU Zhi-hong1,ZHANG Huai-qing1(1.State Key Laboratory of Power System Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044,China,2.Chongqing Geological Instrument Factory,Chongqing 400030,China) |
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| Abstract: | The hydropower generating units' vibration parameter is an important index to monitor its operating stability.To measure the low-frequency vibration of the large and middle scale of hydropower generating units,according to frequency characteristic compensation principle of the vibration sensor,a low-frequency compensating circuit is designed to extend the frequency characteristics to the low frequency region.To make the design of compensating circuit convenient,the equivalent quality factor Q is brought in.... |
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| Keywords: | sensor vibration amplitude-frequency characteristics compensating circuit transfer function sensitivity |
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