Real-time power network thermal power plant economic operation evaluation optimization algorithm

A technology of economical operation and optimization algorithm, applied in the field of electric power, which can solve problems such as not combining the physical constraints of the electric power network

Active Publication Date: 2015-08-12
STATE GRID CORP OF CHINA +4
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Problems solved by technology

Others only consider the influence of economic factors in market bidding, without combining the physical constraints of the actual operation of the power network

Method used

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  • Real-time power network thermal power plant economic operation evaluation optimization algorithm
  • Real-time power network thermal power plant economic operation evaluation optimization algorithm
  • Real-time power network thermal power plant economic operation evaluation optimization algorithm

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Embodiment Construction

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] like figure 1 As shown, this embodiment provides a real-time power grid economic operation evaluation thermal electronic optimization algorithm, which specifically includes the following steps:

[0027] Step S1: Determine the units that must be turned on according to the planned implementation of the contracted electricity of each unit and special scheduling requirements;

[0028] Step S2: Use the given constraints to make a preliminary judgment on the start and stop of units, and exclude units that do not meet the constraints and include them in the must-stop group;

[0029] Step S3: Queue priority groups for non-essential startup groups and non-essential shutdown groups;

[0030] Step S4: Determine the preliminary unit combination by using the starting and stopping constraints;

[0031] Step S5: Calculate the cost of various possible prelimina...

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Abstract

The invention relates to a real-time power network thermal power plant economic operation evaluation optimization algorithm. The algorithm includes the following steps that: problems in power plant generator combination are solved through efficiency prioritization; problems in target function primarization are solved through utilizing linear programming; and problems of security constraints of network operation and influence of fault switching-on and switching-off on a network structure are solved through utilizing the advantages of direct current load flow. According to the real-time power network thermal power plant economic operation evaluation optimization algorithm of the invention, a loop iteration method in which efficiency prioritization, linear programming and optimal load flow are combined together is adopted, so that economic operation evaluation of a thermal power plant in a power network can be performed fast, and computational analysis services can be provided for on-line evaluation.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a thermal electronic optimization algorithm for evaluating the economic operation of a real-time power grid. Background technique [0002] So far, there has been a lot of research work at home and abroad on how to formulate the daily power generation plan of thermal power plants in combination with grid security, economy and unit characteristics. The research on optimization algorithms is still mainly reflected in the classical optimization algorithms, such as linear Planning method, quadratic programming method, nonlinear programming method and dynamic programming method, etc., are also based on modern artificial intelligence, such as genetic algorithm, artificial neural network method, ant colony algorithm, chaotic optimization method and evolutionary algorithm. Using these single and simple algorithms will encounter problems such as limited accuracy of calculation results, combin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
Inventor 陈强詹云清罗富财吴丹汤振立
Owner STATE GRID CORP OF CHINA
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