Method and system for optimizing and leveling water level of forebay of radial flow type hydropower station
A runoff, water diversion system technology, applied in hydropower stations, control/regulation systems, hydropower, etc., can solve problems such as inability to provide control methods, limited water level control effects, and impact on unit stability, and improve remote management. Level and intelligent operation and maintenance level, avoid manual experience errors, and facilitate management.
Active Publication Date: 2022-01-04
河南郑大水利科技有限公司
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Problems solved by technology
[0003] The fluctuation of the water level in the forebay will not only affect the stability of the unit, but also reduce the power generation head and affect the power generation efficiency
In order to control the water level of the pressure forebay, some hydropower stations install a water level gauge in the pressure forebay to observe the water level, and when the water level rises, the output of the unit is increased, and when the water level drops, the output of the unit is reduced, but it needs to be based on Judging by manual experience, no effective control method can be given, and its control effect on water level is limited
Method used
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[0031] The structure defined in the present invention will be specifically explained below with reference to the contents of the drawings in the description.
[0032] The invention provides a method for optimizing and leveling the forebay water level of a runoff hydropower station. The runoff hydropower station includes a pressure forebay, a water diversion system, a hydraulic turbine, a generator, a tail water system, and a governor. The pressure forebay and the water diversion system , the water turbine and the tail water system are connected in sequence, the generator is connected with the water turbine, and arranged in one-to-one correspondence, the governor is connected with the water turbine, and is used to increase or decrease the guide vane opening of the water turbine, and the governor Corresponding to the hydraulic turbines, the pressure forebay is provided with a water level acquisition device, the generator is connected with an output acquisition device, the governo...
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The invention provides a method and a system for optimizing and leveling water level of a forebay of a radial flow type hydropower station. According to the method and the system for optimizing and leveling the water level of the forebay of the radial flow type hydropower station, the water level of a pressure forebay and output of each hydro-generator are collected and judged, when water level triggers a water level limiting value, the output value needing to be adjusted is calculated, the output value needing to be adjusted is calculated according to the monitored output of each hydro-generator, a unit needing to be adjusted is obtained and adjusted so as to ensure that the forebay stably operates at the high water level; the method and the system are easy to operate and execute, and can be widely applied to water level control of the radial flow type hydropower station.
Description
technical field [0001] The invention relates to water conservancy projects, in particular to a method and system for optimizing and leveling the water level of the forebay of a radial hydropower station. Background technique [0002] The run-of-river hydropower station cannot effectively regulate the incoming flow. The water used by the hydropower station must be compatible with the incoming water. If the incoming water does not match the water used, it will be reflected by the change in the water level of the pressure forebay. For example, if the water level of the pressure forebay rises, it means that The water is greater than the water used. If the water level in the pressure forebay drops, it means that the incoming water is less than the water used. [0003] The fluctuation of the water level in the forebay will not only affect the stability of the unit, but also reduce the power generation head and affect the power generation efficiency. In order to control the water ...
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Patent Timeline
Login to View More IPC IPC(8): E02B9/00G05D9/12
CPCE02B9/00G05D9/12Y02E10/20
Inventor 邓旭王朋郭峰
Owner 河南郑大水利科技有限公司