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Feasible region optimization analysis method for distributed energy power generation plan

A technology of distributed energy and power generation planning, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of model rationality and optimality considerations, unsolvable power generation plan, and the solution result does not meet the dispatching operation Demand and other issues to achieve the effect of reducing power purchase costs and improving power generation plans

Active Publication Date: 2019-07-23
ZHEJIANG ZHENENG TECHN RES INST
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Problems solved by technology

[0002] With the large-scale access of distributed energy resources, the transaction optimization scheduling problem of energy systems becomes more complex
In the traditional power generation planning research process, all the energy is concentrated on how to solve the power generation planning model, and the rationality and optimality of the model establishment are less considered, which makes the power generation plan unsolvable, or the solution results do not meet the needs of actual dispatching and operation

Method used

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  • Feasible region optimization analysis method for distributed energy power generation plan
  • Feasible region optimization analysis method for distributed energy power generation plan
  • Feasible region optimization analysis method for distributed energy power generation plan

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0050] Such as figure 1 As shown, this example uses the IEEE30 node model network topology

[0051] IEEE30 generator parameters are as follows:

[0052]

[0053] IEEE30 node load parameters are as follows:

[0054]

[0055] IEEE30 line parameters are as follows:

[0056]

[0057]

[0058] Reduce the capacity of some of the lines so that the model has no feasible solution, and keep other constraints unchanged. Line reduction capacity is as follows:...

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Abstract

The invention relates to a feasible region optimization analysis method for a distributed energy power generation plan, which comprises the following steps: 1) establishing a simplified direct currentlinear model for economic dispatch of a distributed energy system; 2) adding artificial variables to the model in step 1 by using the idea of simplex two-stage method for reference to construct an optimization model of the first stage of the two-stage method; 3) solving the optimization model of the first stage in the step 2, and judging whether the original problem has a solution or not; and 4)obtaining lagrange multipliers of all the working unit output upper limit constraints and line capacity constraints by using the lagrange multiplier method under the linear cost function model or thesimplex multiplier method. The feasible region optimization analysis method has the advantages that the problems of unavailability of the power generation plan caused by bad data, unreasonable constraints and the like in the actual operation process are solved; at the same time, the problem of high power purchase cost caused by too strict constraints is solved.

Description

technical field [0001] The invention relates to a technology in the field of distributed energy systems, in particular to an optimization analysis method for a feasible region of a distributed energy generation plan. Background technique [0002] With the large-scale access of distributed energy resources, the transaction optimization scheduling problem of energy systems becomes more complex. In the process of traditional power generation planning research, all the energy is concentrated on how to solve the power generation planning model, and the rationality and optimality of the model are less considered, which makes the power generation plan unsolvable, or the solution results do not meet the needs of actual dispatching and operation. The problems to be solved urgently in the entire intelligent dispatching planning system are: first, to provide auxiliary decision-making for operators to correct the model scientifically when the model is unreasonable; suggestion. Therefo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 赵申轶张浙波张曦董益华林俊光罗海华叶飞宇徐明阳
Owner ZHEJIANG ZHENENG TECHN RES INST
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