Power generation and scheduling grading peak regulation method for cascade hydropower station
A hydropower station, cascade technology, applied in the direction of data processing applications, instruments, calculations, etc.
Active Publication Date: 2019-10-25
CHANGJIANG SURVEY PLANNING DESIGN & RES
View PDF5 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] The purpose of the present invention is to overcome the problems existing in the prior art, and to provide a cascade hydropower station power generation dispatching hierarchical peak-shaving method, which can fully consider the problem of abandoned water peak-shaving caused by the mismatch of upstream and downstream cascade storage capacity, cascade The influence of factors such as the navigation stability between the two dams and the downstream of the cascade, the ecological water demand downstream of the cascade, and the stable operation of the power station unit on the peak regulation of the cascade reservoir, according to the corresponding water abandonment situation and river flow state of the upstream and downstream reservoirs under different power generation flow conditions Waiting for the operation status of reservoirs and rivers, formulating the hierarchical peak-shaving scheduling rules for cascade hydropower stations, and providing technical support for guiding the actual operation of cascade hydropower station joint peak-shaving
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0089] This embodiment is an application of joint power generation scheduling of cascade hydropower stations composed of upstream hydropower station X and downstream anti-regulation power station Y in a certain river basin. This method also has guiding significance for joint power generation scheduling and short-term peak-shaving operation of cascade hydropower stations in other river basins. The upstream X hydropower station has strong storage capacity adjustment ability, annual adjustment ability, and large installed capacity. The downstream Y hydropower station is located about 10km below the X hydropower station and is a run-of-the-river power station. The total installed capacity of the X-Y cascade hydropower stations reaches 550MW. Since the X hydropower station is mainly responsible for peak regulation, frequency regulation and emergency backup in the system, the Y hydropower station acts as a downstream anti-regulation cascade, which can adjust the discharge flow of the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a power generation and scheduling grading peak regulation method for a cascade hydropower station. The method comprises the steps that (1) extracting a peak regulation mode according to typical daily load curves of a plurality of power receiving ends; (2) within the power generation flow range of the peak regulation power station, proposing a first-stage cascade hydropowerstation power generation scheduling hierarchical peak regulation method by taking a peak regulation mode and a reverse regulation power station without discarding water as constraint conditions; and(3) correcting the initial peak regulation scheme by taking the flow state requirements of rivers and rivers between two cascade dams and at the downstream of the cascade dams as constraint conditions, and carrying out the second-stage cascade hydropower station power generation dispatching grading peak regulation method. The method is established on the basis of comprehensive utilization requirements, and technical support is provided for guiding actual operation of combined peak regulation of the cascade power station.
Description
technical field [0001] The invention belongs to the intersecting fields of water conservancy and hydropower project management and power system power generation optimization scheduling, and in particular relates to a hierarchical peak-shaving method for power generation scheduling of cascade hydropower stations based on comprehensive utilization requirements. Background technique [0002] Sufficient peak shaving capacity is a crucial condition to ensure the safe and stable operation of the power grid. With the large-scale integration of new energy sources such as wind power and photovoltaics into the grid, coupled with the increase in power grid load year by year, sufficient and efficient peak-shaving power is crucial to maintaining the safe, stable, high-quality, and economical operation of regional power grids. Hydropower is a clean and renewable energy source. Due to its characteristics of fast start-stop and flexible adaptation to load changes, hydroelectric units have b...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G06Q10/06
CPCG06Q50/06G06Q10/06315Y04S10/50Y04S50/16Y02A10/40
Inventor 张睿饶光辉余蔚卿洪兴骏李肖男喻杉孟明星张利升陈永生
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES