Optimal scheduling method for single-stage pump station

A technology for optimizing scheduling and scheduling methods, applied in pump control, liquid variable capacity machinery, machines/engines, etc., can solve problems such as power loss, large amount of discarded water, and planning and design cannot predict the actual timing state, and achieve less energy consumption. Effect

Inactive Publication Date: 2013-09-04
SHANGHAI EAST PUMP AUTOMATION CO LTD
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AI Technical Summary

Problems solved by technology

However, planning and design cannot predict the actual timing of working conditions during operation, so scheduling is required during the operation of pumping stations. The existing scheduling schemes are mainly based on experience, resulting in many pumping station units not operating under optimal conditions, resulting in a large number of Loss of electric energy, or unreasonable operation and scheduling of pumping stations, resulting in excessive discarded water, etc.

Method used

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  • Optimal scheduling method for single-stage pump station
  • Optimal scheduling method for single-stage pump station
  • Optimal scheduling method for single-stage pump station

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Embodiment approach

[0037] The benefit and energy consumption of the pumping station are not only related to the pump, but also related to the efficiency of the motor, the substation, and the regional environment. The operation scheduling of the pumping station is not to pursue the best operating state of a certain equipment, but to optimize the overall coordinated operating state. Target.

[0038] 1. Pump energy consumption calculation

[0039] When only considering the energy consumption required by the main water pump of the pumping station, without considering the power consumption required by auxiliary equipment, electrical equipment, station substation, etc., the required input power of the main water pump can be described as:

[0040] In a certain period of time, the energy consumption per unit water volume of the pumping station can be described as:

[0041] e = P 1 Q = ρgQH...

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Abstract

The invention relates to an optimal scheduling method for a single-stage pump station. The optimal scheduling method comprises the following steps: establishing mathematical models according to water pump energy consumption and water pump performance and optimizing pump station running parameters; establishing a mathematical model according to water pump energy consumption influencing factors including water pump flow and lift, and obtaining functional relations between the water pump energy consumption and every influencing factor; establishing a mathematical model according to water pump performance influencing factors including water pump flow, lift, efficiency, motor speed, upstream and downstream water level difference of the pump station and resistance factors of a system pipeline, and obtaining functional relations between the water pump performance and every factor; and adjusting the pump station by combination with the mathematical models established according to the water pump energy consumption and the water pump performance and specific changes of the real-time parameters. According to scientific management optimization technology and scheduling decisions, the water pump performance and motor efficiency factors are considered comprehensively, minimum of energy consumption of the pump is achieved for a goal of minimum of total power consumption of a pump station unit on the premise that the required flow of every time period and the lift are met.

Description

technical field [0001] The invention relates to a dispatching method, in particular to a single-stage pumping station optimization dispatching method for establishing a mathematical model according to water pump energy consumption and water pump performance to optimize pumping station operating parameters. Background technique [0002] When planning and designing a pumping station, it is generally necessary to make a careful forecast of the expected service life of the pumping station based on historical data, reasonably select various equipment for the pumping station, and expect the pumping station to work with high efficiency after it is completed. However, planning and design cannot predict the actual timing of working conditions during operation, so scheduling is required during the operation of pumping stations. The existing scheduling schemes are mainly based on experience, resulting in many pumping station units not operating under optimal conditions, resulting in a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/00
Inventor 毛九兵
Owner SHANGHAI EAST PUMP AUTOMATION CO LTD
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