Comparison and Analysis of Two Flow Calculation Methods for Flow Measurement by Velocity Meter

This paper mainly discusses two methods of flow measurement and calculation by velocity meter, and compares the differences between the two methods in order to guide the intelligent detection of hydropower generating units. The graphic integral method and average flow velocity method are recommended by IEC,regulation are compared and analyzed in terms of calculation accuracy, advantages and disadvantages of the two methods combined with practical power station experimental data.