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Small hydropower water regime operation system

An operation system and small hydropower technology, which is applied in the field of water regime operation and automatic control of small hydropower, can solve the problems of low attention to water head loss, insufficient control precision, and low efficiency of units, so as to improve power quality, enhance safety, and improve The effect of power generation efficiency

Inactive Publication Date: 2008-03-12
王仁飞
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AI Technical Summary

Problems solved by technology

Due to manual limitations, less attention is paid to the loss of water head from the diversion channel to the forebay, and there are situations such as insufficient control accuracy, failure of the hydraulic turbine unit to work at its best, waste of waste water, and low-efficiency operation of the unit, etc.
At present, there is no good solution at home and abroad

Method used

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  • Small hydropower water regime operation system

Examples

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Effect test

Embodiment 1

[0014] Embodiment 1: In a small hydropower station, there are two generators of 250kw and 320kw respectively, the installed capacity is 570kw in total, the overflow water level of the forebay is 3 meters, and the drop is 90 meters.

[0015] After the summer rainstorm, the system begins to detect that the water level of the forebay has increased. When it is higher than the set value (2.7 meters), the water input power of the forebay is larger at this time. If the system detects that the water level is still rising, it will appropriately increase the working flow of the turbine; when the power of the 320kw generator is greater than the rated power, the system will start another 250kw generator, and adjust the water level according to the detected water level rise. Increase the working flow of the 250kw water turbine to avoid water overflow.

[0016] As time goes by, the runoff water gradually decreases, and the system detects that the water level of the forebay begins to drop. A...

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Abstract

The invention discloses a water conditions running system for small hydropower plants. The running system comprises a front reservior water conditions measurement and a water turbine control. The method is as follws: The system can measure water inlet flow rate reduction or water level lowering in a front reservoir; if predetermined values are reached, the system will adjust working flow rate of one or more water turbines, or shutdown one or more water turbines, so that the front reservior water level can be maintained at a rather high level; if the system detects water inlet flow rate increase or water level rising in the front reservoir, so as to reach a predefined value in advance, the system will adjust to increase working flow rate of one or more water turbines, or additionally, starts one or more water turbines to avoid water overflow. Thus, the invention can lower personnel labor intensity, reduce water head loss, improve static water head and effectively increase power generation volume in the identical water flow.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to the field of water regime operation of small hydropower. Background technique [0002] Hydropower is a power generation method that converts the potential energy of water into electrical energy. The hydropower station uses buildings such as dams and diversion channels to concentrate the drop of natural water flow to form a water head, collect and adjust the flow of natural water flow, and transmit it to the water turbine. Through the combined operation of the water turbine and the generator, the concentrated water energy is converted into electrical energy. , and then the electric energy is input into the grid through transformers, switching stations and transmission lines. The water level difference between the upstream diversion inlet section of the hydropower station and the downstream tailwater outlet section is called the gross head of the hydropower station. After deductin...

Claims

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Application Information

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IPC IPC(8): F03B15/04F03B13/06E02B9/00
CPCY02E10/226Y02E60/17Y02E10/22Y02E10/20Y02E60/16
Inventor 王仁飞
Owner 王仁飞
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