Determination method of hydropower station water storing and releasing dispatch and operation scheme based on energy storage analysis
A technology for determining methods and scheduling operations, which is applied in the fields of hydropower stations, hydropower generation, water conservancy projects, etc., and can solve problems such as maintenance
Inactive Publication Date: 2013-09-04
YUNNAN ELECTRIC POWER DISPATCH CONTROL CENT
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There are contradictions between these two operation modes, and each operation period needs to be coordinated to solve the problem of whether the natural incoming water and the reserved water can be used in time or kept for future use under the condition of meeting the needs of the system
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[0032] The present invention will be described in detail below in conjunction with the embodiments provided by the accompanying drawings.
[0033] Based on the method for determining the water storage and discharge scheduling operation scheme of the hydropower station based on the energy storage analysis, the present invention studies the optimal operation mode of the hydropower station in the dry season and the water storage period respectively,
[0034] The method for determining the dispatching operation scheme in the dry season adopts the following steps in sequence:
[0035] (1) Determine the dry season in the year based on the seasonal variation of natural runoff, set the calculation period as the time unit of season, month, ten-day, week, or day, and start from the first period of the dry season to calculate the operation mode of the dry season;
[0036] (2) In the current calculation period, the difference between the known water level at the beginning of the period an...
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The invention discloses a determination method of a hydropower station water storing and releasing dispatch and operation scheme based on energy storage analysis. By the method, performance indexes such as incoming flow energy losses, used (future) reservoir stored energy, practical electric energy capable of being generated and stored energy utilization efficiency can be calculated and analyzed) according to different utilization conditions of incoming flow energy and reservoir stored energy in the process of water storing and releasing and based on different operation schemes specific to falling of a water level in a dry season and ascending of the water level in a storage period, the demand for electric quantity of a system is combined, and optimal water storing and releasing operation manners of various time periods are obtained. The method has the advantages that the achievement of hydropower station water storing and releasing operation manners where water quantity and a water head are coordinately utilized is studied by utilizing the point of view of high-efficiency utilization of the stored energy, and more practical and credible instructions can be provided for scientifically formulating dispatch decisions for the hydropower station which is operated in a power grid.
Description
technical field [0001] The invention relates to the operation mode of the hydropower station in the operation of the power grid, in particular to the hydropower dispatching operation method of the power grid dispatching center and the hydropower generation company. Background technique [0002] In a power system with a large proportion of hydropower, the reasonable arrangement of the operation mode of hydropower stations directly affects the safe operation and economic benefits of the entire power system. The core issue in formulating the operation mode of hydropower stations is to use reservoirs to adjust the uneven distribution of natural incoming water in time, to store abundant water to make up dry water, and to formulate reservoir storage and water supply plans. Due to the differences in the hydrological characteristics and adjustment capabilities of various hydropower stations, determining a reasonable water storage and discharge operation mode for hydropower stations ...
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IPC IPC(8): E02B9/00
CPCY02E10/20
Inventor 蔡建章刘红岭
Owner YUNNAN ELECTRIC POWER DISPATCH CONTROL CENT