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Power generation optimizing and scheduling method of daily regulation hydropower station based on water level control

A water level control and hydropower station technology, applied in the field of water conservancy and electric power, can solve the problem of low practicability of the daily regulation reservoir power generation scheme

Active Publication Date: 2013-03-13
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a daily regulation hydropower station power generation optimization scheduling method based on water level control, in view of the defect that the daily regulation reservoir power generation scheme obtained by the current optimal scheduling method is not very practical, so as to ensure the maintenance of high reservoirs. While the water level is running and the maximum power benefit is obtained, the power generation timing of the hydropower station is reasonably arranged to meet the power generation needs of the power grid and the power plant

Method used

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  • Power generation optimizing and scheduling method of daily regulation hydropower station based on water level control
  • Power generation optimizing and scheduling method of daily regulation hydropower station based on water level control
  • Power generation optimizing and scheduling method of daily regulation hydropower station based on water level control

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Effect test

Embodiment 1

[0097] (1) Determine the scheduling object and scheduling model, and select parameters:

[0098] (1.1) Using conventional methods, select a daily regulation hydropower station with reverse regulation capability among the daily regulation hydropower stations downstream of the leading hydropower station in the cascade reservoir group as the dispatching object;

[0099] (1.2) The water flow between the daily regulating hydropower station and the above-mentioned upstream leading hydropower station and the outbound water flow of the upstream leading hydropower station determined by the hydrological forecast acquisition step (1.1) are determined by the obtained two water flows And as the daily regulation of the inbound water flow of the hydropower station;

[0100] (1.3) Using conventional methods, establish the maximum dispatching model of the daily regulating hydropower station's power generation. The objective function of this model is:

[0101] ...

Embodiment 2

[0134] Step (1) is the same as embodiment 1;

[0135] (2) Starting from the starting moment of the power generation plan, the outflow water flow of the hydropower station is adjusted daily to be equal to the inflow water flow, and the initial water level and final water level of the reservoir in this period are kept unchanged. In all time periods, the discharge water flow of the daily regulating hydropower station does not meet the requirements of not greater than the maximum allowable discharge water flow of the reservoir, and at the same time not less than the minimum discharge water flow requirement, and the difference between the discharge water flow of adjacent periods is greater than the discharge of the daily regulation hydropower station The water flow rate is allowed to vary, and the current adjustment period is recorded as t mark time period;

[0136] (3) Adjust the water flow out of the reservoir according to the maximum flow capacity of the daily regulation hydrop...

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Abstract

The invention introduces a power generation optimizing and scheduling method of a daily regulation hydropower station based on water level control. The method comprises the following steps of: (1) determining a scheduling object and a scheduling model; (2) determining the flow of water released from a reservoir; (3) regulating the outlet water flow according to the maximal discharge capacity; (4) regulating the outlet water flow according to the requirement of the minimal discharge water flow; (5) regulating of the outlet water flow according to an available variable amplitude of the outlet water flow of the reservoir; (6) reserving the capacity of the reservoir; (7) excessively discharging water, and (8) calculating a generated output value. According to the method, the design is reasonable, the operation is simple and the optimization effect is visualized; 2) an obtained power generation scheme highly accords with the actual project requirements for power generation scheduling of the reservoir; and 3) an attention period can be selected and the established steps within the attention period can be regulating. A regulation result can be conveniently and rapidly fed back to a decision maker, and a strong support is provided for decision making.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and electric power, and in particular relates to a method for optimally dispatching power generation of a hydropower station with daily regulation based on water level control. Background technique [0002] In the daily power generation scheduling of hydropower stations, the maximum power generation model is usually used, and mathematical programming methods or heuristic algorithms, such as simulated annealing methods, genetic algorithms, ant colony algorithms, and particle swarm algorithms, are used to solve the maximum power generation model to obtain the current power generation plan of the hydropower station . However, due to the combined effects of the reservoir characteristics of the hydropower station and the water level constraints during the dispatching period, the power generation plan obtained by using the maximum power generation model generally presents the following charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCY04S10/545Y04S10/54Y02E40/76Y02E40/70Y04S10/50
Inventor 胡斌奇成涛伍永刚
Owner STATE GRID HUNAN ELECTRIC POWER
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