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Thermal power plant comprehensive scheduling method based on environment protection and economical benefit

A technology for environmental economic dispatch and economic benefit, which is applied in the field of comprehensive dispatch of thermal power plants based on environmental protection and economic benefits, can solve the problems of difficulty in obtaining the best benefits, and difficulty in adjusting between economic benefits and environmental benefits.

Active Publication Date: 2012-11-14
INNER MONGOLIA DAIHAI ELECTRIC POWER GENERATION
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Problems solved by technology

[0004] The purpose of the present invention is to provide a comprehensive scheduling method for thermal power plants based on environmental protection and economic benefits, which solves the problem that the existing scheduling methods are difficult to adjust between the economic benefits and environmental benefits of the power grid, and it is difficult to obtain the best benefits

Method used

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  • Thermal power plant comprehensive scheduling method based on environment protection and economical benefit
  • Thermal power plant comprehensive scheduling method based on environment protection and economical benefit
  • Thermal power plant comprehensive scheduling method based on environment protection and economical benefit

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Embodiment Construction

[0045] The present invention is an integrated dispatching method for thermal power plants based on environmental protection and economic benefits, including the following steps:

[0046] Step 1. Establish a mathematical model for the environmental and economic dispatch of thermal power plants

[0047] The scheduling problem is an obvious two-objective optimization problem, and its mathematical model is described as:

[0048] The expression of the environmental economic dispatch problem is:

[0049] In formula (1), i=1,2,…,N G Represents the i generator, N G Is the total number of generators in the system;

[0050] Represents the total fuel consumption for power generation of thermal power plants, that is, the total fuel cost. The calculation expression is:

[0051] F i ( P i ) = a i + b i + c i P i 2 - - - ( 2 )

[0052] In formula (2), P i Represents the active power of the i-th generator; F i (P i ) Represents the fue...

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Abstract

The invention discloses a thermal power plant comprehensive scheduling method based on environment protection and economical benefit. The method includes the following steps: building a mathematical model of thermal power plant environment economical scheduling problems; obtaining various types of parameters in the model; initiating a practicable scheduling generating process and encoding processing; evaluating practicable scheduling; updating the practicable scheduling; updating a non-bad scheduling solution set in an external file set; determining three important non-domination scheduling sequences affecting an iterative process by circulating crowding distance; judging if iteration t reaches a maximum value, on yes judgment, outputting practicable scheduling in the current non-bad solution set, and on no judgment, setting the iteration t=t+1, and returning to step 5 to conduct updating again. Due to the fact that increasing of electric energy production can inevitably cause increasing of pollution discharge, namely increasing of cost for treating environment pollution, the thermal power plant comprehensive scheduling method adjusts generating efficiency of all thermal power plant units in real time and achieves optimization of comprehensive benefit.

Description

Technical field [0001] The invention belongs to the technical field of integrated control, and specifically relates to a thermal power plant integrated dispatch method based on environmental protection and economic benefits. Background technique [0002] In recent years, with the rapid economic growth, environmental pressure has continued to increase. Thermal power plants emit a large amount of harmful gases such as sulfur oxides, nitrogen oxides, and carbon dioxide, which not only directly pollute the atmosphere, but also are an important factor leading to the greenhouse effect. Therefore, the environmental and economic dispatch of power systems that comprehensively consider environmental protection and economic benefits Research not only has important theoretical significance, but also is the most realistic choice for my country's energy and power sustainable development strategy. However, considering the amount of pollution emissions will turn the original single-objective opt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
CPCY04S10/54Y04S10/50
Inventor 吴亚丽薛敬千刘格
Owner INNER MONGOLIA DAIHAI ELECTRIC POWER GENERATION
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