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首页> 外文会议>Hydrovision International Conference and Exhibition >Impact of the Number of Applied Current Meter Sensors on the Accuracy of Flow Rate Measurements across a Range of Hydroelectric Facilities Indicative of the Domestic Hydroelectric Fleet
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Impact of the Number of Applied Current Meter Sensors on the Accuracy of Flow Rate Measurements across a Range of Hydroelectric Facilities Indicative of the Domestic Hydroelectric Fleet

机译：施加电流表传感器数量的影响对一系列水电站的流量测量准确性，指示国内水力发电船队

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The following paper represents the results of an investigation into the impact of the number and placement of Current Meter (CM) flow sensors on the accuracy to which they are capable of predicting the overall flow rate. Flow measurement accuracy is of particular importance in multiunit plants because it plays a pivotal role in determining the operational efficiency characteristics of each unit, allowing the operator to select the unit (or combination of units) which most efficiently meet demand. Several case studies have demonstrated that optimization of unit dispatch has the potential to increase plant efficiencies from between 1 to 4.4 percent [2] [3]. Unfortunately current industry standards do not have an established methodology to measure the flow rate through hydropower units with short converging intakes (SCI); the only direction provided is that CM sensors should be used. The most common application of CM is horizontally, along a trolley which is incrementally lowered across a measurement cross section. As such, the measurement resolution is defined horizontally and vertically by the number of CM and the number of measurement increments respectively.
机译：以下纸张代表了对当前仪表（CM）流动传感器的数量和放置对其能够预测整体流速的精度的影响的研究结果。流量测量精度在Multionit工厂中特别重要，因为它在确定每个单元的操作效率特性时发挥着关键作用，允许操作员选择最有效地满足需求的单位（或单位组合）。几种案例研究表明，单位派遣的优化具有增加植物效率从1％至4.4％的效率[2] [3]。遗憾的是，目前的行业标准没有建立的方法来测量流量通过水电装置的流量，短会聚进口（SCI）;提供的唯一方向是应该使用CM传感器。 CM的最常见施加在沿着小台水平，其逐渐降低在测量横截面上。这样，测量分辨率分别由CM的数量和测量增量的数量水平和垂直定义。

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