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Optimal scheduling method of nonlinear-programming cascade reservoir group based on GAMS (general algebraic modeling system)

A technology of nonlinear programming and cascade reservoirs, applied in data processing applications, system integration technology, instruments, etc., can solve problems such as increasing complexity, and achieve the effect of avoiding the "curse of dimensionality" problem

Inactive Publication Date: 2012-09-19
CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1
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Problems solved by technology

For cascaded hydropower systems, the hydraulic linkage of runoff adds further complexity to the problem

Method used

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  • Optimal scheduling method of nonlinear-programming cascade reservoir group based on GAMS (general algebraic modeling system)
  • Optimal scheduling method of nonlinear-programming cascade reservoir group based on GAMS (general algebraic modeling system)
  • Optimal scheduling method of nonlinear-programming cascade reservoir group based on GAMS (general algebraic modeling system)

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Embodiment 1

[0025] This embodiment is a method for optimal scheduling of cascade reservoir groups based on GAMS nonlinear programming. The technical structure of the method is as follows figure 1 shown. The steps of the method described in this embodiment are as follows:

[0026] Establish the objective function: including the maximum power generation, the minimum water abandonment, the maximum power generation guarantee rate, the minimum output, the maximum power generation in dry years, and the storage capacity at the beginning and end of the dispatch cycle is infinitely close to equal. The objective function is as follows:

[0027]

[0028]

[0029]

[0030] Defining the set-based network diagram of reservoir groups: In order to construct a general intelligent cascade reservoir group joint optimization dispatching model, the concept of set is introduced to define the network diagram of reservoir groups. The basic collection of models includes two types: one-dimensional colle...

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Abstract

The invention relates to an optimal scheduling method of a nonlinear-programming cascade reservoir group based on a GAMS (general algebraic modeling system). The method comprises the following steps of: establishing an objective function; considering constraint conditions such as reservoir water balance constraints, related engineering constraints, related power generation constraints, other policy constraints, maximum constraint on minimum output, maximum constraints on guaranteed output, minimum constraints on differences between initial and final reservoir capacities in transition periods, and maximum constraints on assurance rates; and solving. According to the invention, runoff processes occurring in the past, artificially-generated runoff sequences and future runoff forecast processes are all taken as deterministic input processes of reservoir operation scheduling. The runoff description method can be used for intuitionally and visually reflecting the continuity and periodicity of runoff changes in a certain period, and indirectly reflecting the statistical properties of runoffs. According to given runoff data, the operation of solving is performed by virtue of a deterministic optimization model to obtain an ideal optimal operation process; and then, according to some criterion, a scheduling discipline function is identified from the optimal operation process and is used for guiding the operation of a hydropower system.

Description

technical field [0001] The invention relates to a method for optimal dispatching of cascade reservoir groups based on GAMS nonlinear programming, which is a method for optimal dispatching of cascade reservoir groups, and a method for constructing and solving optimization models of mixed-connected "high-dimensional" reservoir groups. Background technique [0002] The research on optimal scheduling method of hydropower station and reservoir group is a typical large-scale multi-dimensional, multi-objective, multi-stage nonlinear mathematical programming problem. Based on the theory of system engineering, modern computer technology and optimization technology are used to seek a satisfactory scheduling plan that meets the scheduling principles. methods, scheduling plans, and scheduling schemes to guide reservoir operation. From the perspective of planning time period, hydropower generation scheduling is a typical dynamic decision-making process, and the scale of the system basica...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
CPCY04S10/545Y04S10/54Y02E40/76Y02E40/70Y04S10/50
Inventor 陆玉忠李献新雷晓辉高力书张云辉王旭胡宇丰林旭徐海卿马岚
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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