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變頻調(diào)速燈泡貫流泵站停機(jī)過渡過程研究
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“十一五”國家科技支撐計劃資助項目 (2006BAB04A03);江蘇省水利動力工程重點(diǎn)實(shí)驗(yàn)室開放課題資助項目(K100016)


Shut-down Transient of Bulb Tubular Pumping Station with VFD
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    摘要:

    變頻調(diào)速的燈泡貫流泵站借助于變頻裝置逐步降低機(jī)組轉(zhuǎn)速,，實(shí)現(xiàn)機(jī)組的安全平穩(wěn)停機(jī),。分析了變頻調(diào)速機(jī)組的正常停機(jī)特點(diǎn)，建立停機(jī)過程的水量平衡和力矩平衡動態(tài)方程,。根據(jù)變頻裝置的特性設(shè)置轉(zhuǎn)速的變化規(guī)律，通過數(shù)值模擬停機(jī)過程中主要水力參數(shù)的變化特征,，尋求轉(zhuǎn)速變化規(guī)律,、起始時刻與閘門關(guān)閉時間之間的最佳匹配，為變頻調(diào)速燈泡貫流泵站的安全穩(wěn)定運(yùn)行提出了不同停機(jī)規(guī)律的建議,。

    Abstract:

    The shut-down process of bulb tubular pumping station with VFD will be a stabile and safe transient process through the speed lowing gradually. The features of normal shut-down process with VFD were analyzed. The flowing rate balance and torque dynamic balance equations were established. According to the characteristics of the VFD, the speed lowing law was designed and the main hydraulic parameters were simulated during the shut-down transient period by the numerical calculation, the optimal combination between the speed-lowing, the starting time point and closing time of the gate was discovered. The findings of the study provided various shut-down suggestions for safety and stability operation of bulb tubular pumping stations with VFD.

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張仁田,朱紅耕,李慈祥,姚林碧.變頻調(diào)速燈泡貫流泵站停機(jī)過渡過程研究[J].農(nóng)業(yè)機(jī)械學(xué)報,2013,44(3):45-49. Zhang Rentian, Zhu Honggeng, Li Cixiang, Yao Linbi. Shut-down Transient of Bulb Tubular Pumping Station with VFD[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(3):45-49.

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  • 在線發(fā)布日期: 2013-02-25
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