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An optimal scheduling method for multi-year regulating reservoirs considering runoff uncertainty

A technology for regulating reservoirs and optimizing scheduling, applied in general water supply conservation, data processing applications, forecasting, etc., can solve problems such as unreasonable scheduling and inaccurate calculations, and achieve good applicability, good portability and applicability

Active Publication Date: 2019-04-16
TIANJIN UNIV
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Problems solved by technology

The above studies mainly focus on the year-end drawdown level research of single-objective multi-year regulation reservoirs based on annual runoff input, ignoring the correlation and uncertainty of inter-annual runoff and the impact of multi-year water demand on multi-year regulation reservoir operation, resulting in inaccurate calculations. Precise, unreasonable scheduling and other phenomena

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  • An optimal scheduling method for multi-year regulating reservoirs considering runoff uncertainty
  • An optimal scheduling method for multi-year regulating reservoirs considering runoff uncertainty
  • An optimal scheduling method for multi-year regulating reservoirs considering runoff uncertainty

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Embodiment Construction

[0062] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be discussed in detail below in conjunction with the accompanying drawings and specific examples:

[0063] This example takes the optimal dispatching of a multi-year regulating reservoir as an example, analyzes and compares the historical annual runoff of the reservoir and the regulating storage capacity of the reservoir, and determines that the optimal dispatching period of the reservoir is 3 years. according to figure 1 The simplified flowchart of the specific implementation steps are as follows:

[0064] (1) Analyze the historical inflow runoff data of the reservoir, and use the design representative year method to calculate the typical year inflow runoff (see Table 1), the distribution ratio within a year (see Table 2) and the design three-year inflow runoff.

[0065]

[0066] Table 1 Design typical annual inflow runoff

[0067]

[00...

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Abstract

The present invention discloses a multi-year regulating storage reservoir optimal scheduling method considering runoff uncertainty. The method comprises the following steps of: (1) analyzing historical reservoir runoff data; (2) establishing a runoff random simulation model, and generating a reservoir simulation annual runoff sequence; (3) simulating annual inflow runoff sequence classification and performing intra-annual distribution to obtain a three-year inflow runoff process sequence on a month scale; (4) establishing a multi-year regulating storage reservoir optimal scheduling model that considers multiple water demands; and (5) reducing dimension by using an optimization algorithm and optimizing a resolution model so as to obtain an optimal discharging and water supply decision. According to the method provided by the present invention, the scheduling with maximized comprehensive benefits of long-term multi-target operation can be performed on a multi-year regulating storage reservoir by considering runoff uncertainty, so that the method is suitable for promotion in long-term optimal scheduling of the multi-year regulating storage reservoir in China.

Description

technical field [0001] The invention relates to the field of reservoir power generation optimization dispatching, more specifically, relates to a method for multi-year regulation reservoir optimization dispatching considering runoff uncertainty. Background technique [0002] With the development of social economy, water resources are becoming more and more important resources for all walks of life. As an effective method of water resources management, reservoir scheduling is particularly important for optimal scheduling. The multi-objective optimal dispatch of large multi-year regulating reservoirs plays a decisive role in the realization of cascade benefits, and is also the key to ensuring the long-term normal operation of the reservoir. [0003] At present, there are few studies on the multi-objective optimal dispatching of multi-year regulating reservoirs, mainly based on factors such as starting water level, power market environment, time-of-use electricity price, histor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCY02A20/152
Inventor 练继建孙萧仲马超
Owner TIANJIN UNIV
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