抽水蓄能机组压力脉动的测试与分析--《水力发电》2001年05期

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}~"^nR8JF(a0【摘要】:通过对广州蓄能水电厂 (一期 ) 30 0MW抽水蓄能机组压力脉动的实测与分析 ,就测点布置、分析方法与基本参数作了说明 ,并对测点信号时域特征和频域特性进行了研究 ,给出了压力脉动沿流道的分布。测试结果表明 :导叶前后的压力脉动总是显著存在 ,其特征频率为叶片倍数转频 ;其测试结果与分析结论 ,对于机组的疲劳设计、设备维护和测试系统开发都有重要意义。水利论文~+Q X {Z#k/I&a

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5_*r @ {iCls0抽水蓄能机组 压力脉动值 测试 测点布置 抽水工况 发电工况 广州蓄能水电厂水利论文1B oy0W{*x$^ Z

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【基金】:1999年广东省科技进步二等奖水利论文(Cw6Ha/P1Z

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;j"Q6n+QX0St)q00 概 述广州蓄能水电厂一期工程 30 0MW抽水蓄能机组 ,其基本参数见表 1;转轮叶片数为 7,活动导水叶数为 2 0 ,固定导叶数为 10 ,额定转速 5 0 0r/min。因水压脉动是导致水电机组振动的主要原因之一 ,该机组的水压脉动标书要求和实际测试都相对较大 (为 8% ,而三峡一水利论文0[%R;d9P5ay@y\

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