Control method for multi-stage series-parallel connection pump station system

Abstract

The invention discloses a control method for a multi-stage series-parallel pumping station system. The control method for the multi-stage series-parallel pumping station system includes a first-stage pumping station, a second-stage pumping station, a third-stage pumping station, and a fourth-stage pumping station. The first-level pumping station, the second-level pumping station, the third-level pumping station, and the fourth-level pumping station are connected in series, and each level of pumping station is provided with multiple water pump units running in parallel; the control method of the system at least includes: a pump start scheduling method ; Pump stop scheduling method; Fault scheduling method; Constant pressure control method. Compared with the existing water inlet pool in front of the pumping station and the water supply scheme of the outlet pool at the end of the pumping station, the present invention does not need to build a regulating pool, occupies less land, has less investment, and greatly saves engineering costs.

Description

technical field [0001] The invention in this case relates to the field of water conservancy engineering, in particular to a control method for a multi-stage series-parallel pumping station system. Background technique [0002] At present, when the long-distance water supply projects of large and medium-sized pumping stations in China adopt multi-stage pumping stations to raise water, all pump stations have inlet pools in front of them and outlet pools at the end of the pump stations. The outlet pools of the previous pump stations are the next-stage pump stations. Forebay, the flow is adjusted through the inlet pool or the outlet pool. This will inevitably cause the capacity of the regulating pool to be very large, the scale is very large, the land occupation is large, and the investment is large. In view of the above-mentioned problems, and considering the advancement of the current automation control level, a closed four-stage series-parallel pumping station joint control ...

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Problems solved by technology

This will inevitably lead to a large capacity of the regulating pool, a large scale, a large area and a large investment