Disturbance-free Switching Control and Optimization of Oil Transfer Pump Based on SPS
The standby of oil pumps is often switched during the operation of long-distance pipelines.Directly switching the standby pump will cause a large-scale fluctuation in pipeline pressure,and even trigger the water hammer advance protection program to cause pipeline shutdown accidents.In order to reduce the pressure fluctuation in the switching process of the oil transfer pump,combined with the ac-tual pump switching process of the project,the three working conditions of power frequency pump switching to power frequency pump,power frequency pump switching to variable frequency pump,and variable frequency pump switching to power frequency pump are simulated and analyzed through SPS hydraulic software.The switching process of the oil transfer pump is optimized.The undisturbed switching strategy of the oil pump is put forward.The results show that the simulation results of SPS software are in good agreement with the measured results.The relative error is basically within 10%.Af-ter optimization,the pressure fluctuation caused by the switching of the oil transfer pump is within±0.2 MPa.The pressure fluctuation is small.The undisturbed switching can be realized.The undis-turbed switching of the oil pump has certain guiding significance for the operation control of long-dis-tance pipelines.
NETL
NSTL
万方数据
