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An optimized medium and long-term unit combination method

A unit combination, medium and long-term technology, applied in the direction of single-network parallel feeding arrangement, etc., can solve problems such as inability to optimize load rate, achieve load rate, improve scheduling management level, and reduce pollution emissions

Active Publication Date: 2019-01-04
STATE GRID CORP OF CHINA +2
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide an optimized medium- and long-term unit combination method, which solves the problem that the traditional medium- and long-term unit combination method only optimizes the three-way schedule, but cannot finely optimize the load rate

Method used

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  • An optimized medium and long-term unit combination method
  • An optimized medium and long-term unit combination method

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Embodiment 1

[0063] Such as Figure 1-2 As shown, the invention of this example provides a medium- and long-term unit combination method for joint optimization of load rate and three-way schedule; the steps include first establishing the virtual deviation cost of load rate, and then performing optimization calculations according to the medium- and long-term unit combination method to obtain the load rate deviation of the unit Cost; properly compress the unit load rate deviation cost as a constraint into the optimization calculation to obtain the first set of optimization schemes; adjust the compression factor and re-calculate the optimization to obtain multiple sets of optimization schemes; decision makers can choose one of them as the optimal solution.

[0064] 1. Definition of virtual cost of load rate deviation

[0065] Such as figure 1 As shown, the virtual deviation cost is introduced for the load rate of the unit, and there is a deviation between the load rate of the unit and the i...

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Abstract

The invention relates to an optimized middle- and long-term generating unit combination method. The optimization can be realized by combining the load rate and the fairness, impartiality, honesty progress. The method is characterized in that a load rate virtual deviation cost can be established, and according to the conventional middle- and long-term combination optimization method, and by taking the fairness, impartiality, honesty progress as the goal, the optimization calculation can be carried out to acquire the load rate error cost of the generating unit. The acquired generating unit load rate error cost can be compressed properly, and can be used as the constraint to be taken in the optimization calculation, and then the optimization calculation can be carried out again to acquire the first optimization scheme. The compression coefficient can be adjusted, and the optimization calculation can be carried out again to acquire a plurality of optimization schemes. The decider can select one optimization scheme as the optimal scheme. The method provided by the invention is used to solve the problem of the conventional middle-and long-term generating unit combination method that only the optimization control of the fairness, impartiality, honesty progress can be carried out, but the refined optimization of the load rate cannot be carried out.

Description

Technical field: [0001] The invention relates to an optimized medium- and long-term unit combination method, and more specifically relates to a medium- and long-term unit combination method for joint optimization of load rate and three-way progress. Background technique: [0002] my country's traditional medium- and long-term unit combinations usually carry out optimization calculations with the goal of balancing the progress of the three projects. Since the optimization calculation needs to take into account power, power balance, and grid security constraints, and consider the operating characteristics of the units in actual production, the model is already very complicated. It is difficult to consider the load rate of the unit in detail. However, the load rate level of the unit often has a great impact on the pollution emission and power generation cost of the unit. If the load rate level of the unit is too high, the coal consumption cost of the unit will be low, and the po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
Inventor 程海花杨争林耿建邵平郑亚先薛必克张涛张贲史沛然
Owner STATE GRID CORP OF CHINA
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