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Method and system for optimal scheduling on joint flood control for cascade reservoir groups

A technology for optimal dispatching and cascade reservoirs, applied in water conservancy projects, climate change adaptation, water conservancy engineering equipment, etc., which can solve problems such as large amount of calculation, complex flood control dispatching of multi-reservoir series hydropower station groups, and poor accuracy.

Inactive Publication Date: 2012-12-12
GUIZHOU WUJIANG HYDROPOWER DEV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] In addition, the joint flood control dispatching of multi-reservoir series hydropower station groups is very complicated, and contains a variety of linear and nonlinear constraints. Using conventional optimization algorithms to solve them usually has disadvantages such as large amount of calculation and poor solution accuracy. The improved dynamic programming (POA) developed in recent years ) is often used to solve it, but the problem of "dimensionality" disaster will still become an insurmountable obstacle in actual calculation

Method used

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  • Method and system for optimal scheduling on joint flood control for cascade reservoir groups
  • Method and system for optimal scheduling on joint flood control for cascade reservoir groups
  • Method and system for optimal scheduling on joint flood control for cascade reservoir groups

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Embodiment 1

[0093] Embodiment 1 of the present invention: the present invention is applied to the flood control optimization dispatch of Wujiang cascade hydropower station group. A cascaded reservoir group joint flood control optimal dispatching system, such as figure 1 As shown, it includes: an automatic water regime monitoring system 1, a communication system 2 and a water regulation automation system 3, and the communication system 2 is connected to the water regime automatic measurement and reporting system 1 and the water regulation automation system 3 respectively.

[0094] The described water regime automatic surveying and reporting system 1 comprises: telemetry station 4, information transmission channel 5 and central control station 6, and information transmission channel 5 is connected with telemetry station 4 and central control station 6 respectively; Wherein, telemetry station 4 is used for automatic collection The real-time data of rainfall, water level and other hydrologica...

Embodiment 2

[0217] Embodiment 2 of the present invention: the system adopted in this embodiment is the same as that in Embodiment 1. Adopt pre-leaking optimization scheduling method. The basic principles of pre-release optimal scheduling are instantaneous flow balance and time-period water balance. The basic principles of dispatching are the safety principle and the economic principle, that is, not only the safety of the main reservoir, but also create conditions for the safety of the lower reservoirs, and at the same time minimize water abandonment, and make full use of the water head benefits of cascade reservoirs under the condition of no water abandonment.

[0218] mathematical model

[0219] The mathematical model of the pre-venting optimization scheduling method is basically similar to the model of the maximum peak shaving scheduling method, but there are slight differences in concept, which are explained as follows:

[0220] There are obvious advantages to adopting discarded wat...

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Abstract

The invention discloses a method and a system for optimal scheduling on joint flood control for cascade reservoir groups. The method includes the steps of firstly, determining flood type according to real-time reservoir level and the process of forecasting runoff in case of flood; secondly, deciding a primary protection object according to the flood type and downstream control-point flood control standards; thirdly, automatically selecting flood control optimization objectives and corresponding optimization scheduling models in a system model base; and fourthly, solving and optimizing the optimization scheduling model by modified genetic algorithm. The method and the system dynamically judge the level of flood and finish hierarchical scheduling based on the level of flood. In addition, projection of downstream protection objects, dam safety and flood recycling are achieved by selecting proper optimization scheduling objectives according to comprehensive information of the reservoirs, such as regulation performance, scheduling period and reliability in forecast flood during hierarchical scheduling, efficiency in decisions for the reservoir groups is improved, and mass data statistics show that the decision efficiency is improved by about 30% by the method and the system.

Description

technical field [0001] The invention relates to a method and system for joint flood control optimization scheduling of cascade reservoir groups, and belongs to the technical field of cascade reservoir scheduling. Background technique [0002] With the adjustment of the national energy economy, my country's energy structure dominated by thermal power will gradually shift to the development and utilization of various energy sources, especially the development and utilization of clean and renewable energy. A major component of clean, renewable energy. [0003] After the construction of cascade hydropower station groups is completed, how to adapt to the reform and development of the power market and the requirements of separation of power plants and power grids, that is, how to make the existing projects fully exert economic and social benefits, and maximize the competitiveness of enterprises in the power market is a major issue for major river basins. Power generation companies...

Claims

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Application Information

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IPC IPC(8): E02B1/00G06Q10/04G06Q50/06
CPCY02A10/40
Inventor 戴建炜李晓英陈守伦肖燕芮钧王安东李成俊
Owner GUIZHOU WUJIANG HYDROPOWER DEV
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