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Optimal scheduling method for reservoir power generation considering flexibility

A technology that optimizes scheduling and flexibility. It is applied in data processing applications, system integration technology, forecasting, etc., and can solve the problems of inbound runoff distribution types and distribution functions that are difficult to predict.

Active Publication Date: 2021-10-22
WUHAN UNIV
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Problems solved by technology

However, due to the impact of climate change and human activities, the distribution type and distribution function of inflow runoff will become increasingly difficult to predict

Method used

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  • Optimal scheduling method for reservoir power generation considering flexibility
  • Optimal scheduling method for reservoir power generation considering flexibility
  • Optimal scheduling method for reservoir power generation considering flexibility

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Embodiment Construction

[0045] The flexible reservoir power generation optimization scheduling method involved in the present invention will be described in detail below in conjunction with the accompanying drawings.

[0046]

[0047] like figure 1 As shown, the optimal scheduling method for reservoir power generation considering flexibility provided in this embodiment includes the following steps:

[0048] Step 1. Use the flexibility coefficient to express the inflow runoff as an interval form:

[0049] First, use mathematical statistical models or physical models to predict the future inflow runoff process

[0050] Then, set the maximum offset for inbound traffic and

[0051] Finally, the uncertainty of the inflow runoff is represented by the flexibility coefficient μ (0≤μ≤1), and the inflow flow is expressed in interval form, the expression is:

[0052]

[0053] In the formula: T is the number of reservoir scheduling periods; I t is the inbound flow of time period t; is the predic...

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Abstract

The present invention provides a flexible reservoir power generation optimization scheduling method, which can take into account both power generation efficiency and flexibility in the reservoir optimal scheduling process, and is characterized in that it includes the following steps: Step 1. Use the flexibility index to represent the difference in the inflow runoff Deterministic, the inflow runoff is expressed as an interval form; Step 2. Establish a dual-objective optimization model that takes into account both power generation efficiency and flexibility: the power generation benefit goal is the maximum total power generation under the worst case of inflow during the dispatch period, and the flexibility goal is The flexibility index is the largest; Step 3. Solve the dual-objective optimization model, use the constraint method to convert the flexibility objective into constraint conditions, and then use the dynamic programming method to solve; or use the multi-objective intelligent algorithm to find the non-inferior solution set.

Description

technical field [0001] The invention belongs to the field of reservoir dispatching, and in particular relates to a method for optimal dispatching of reservoir power generation considering flexibility. [0002] technical background [0003] The development of hydropower is an important measure to alleviate the future energy crisis and improve the energy structure. Reservoir optimal dispatching is based on the regulation and storage capacity of the reservoir, using the optimal dispatching theory to adjust the process of runoff out of the reservoir, so as to maximize the comprehensive benefits of flood control, power generation, irrigation, and shipping. However, the inflow flow used in the actual operation of the reservoir is obtained from the forecast, so the uncertainty of the inflow runoff process should be considered in the optimal operation of the reservoir. The flexibility (flexibility) of reservoir dispatching refers to the adaptability of the reservoir to deal with unc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/0631G06Q50/06Y02E40/70Y04S10/50
Inventor 徐伟峰刘攀巩钰刘旖旎
Owner WUHAN UNIV
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