Thermal power generating unit operation optimization method and device based on consumption difference analysis

Abstract

The invention provides a thermal power generating unit operation optimization method and device based on consumption difference analysis. The method comprises the following steps: a thermal power generating unit working process model is established based on an improved least square support vector machine algorithm; improved particle swarm optimization is adopted for optimizing parametric variables affecting the net coal consumption rate in the thermal power generating unit working process model, and a global optimum affecting the net coal consumption rate is output; operation of a thermal power generating unit is guided according to parametric variable data corresponding to the global optimum so as to make the thermal power generating unit operate at the optimal net coal consumption rate. According to the thermal power generating unit operation optimization method and device based on consumption difference analysis, the modeling method of the improved least square support vector machine algorithm is used for converting the nonlinear problem of steam working in the thermal power generating unit into the linear problem in a high-dimensional plane, an optimal decision variable is obtained finally, the optimal decision variable is used for guiding the operation of the thermal power generating unit to make the thermal power generating unit operate at the optimal net coal consumption rate, and therefore the energy utilization rate and economic benefit of the thermal power generating unit are increased.

Description

technical field [0001] The invention relates to the operation control technology of thermal power units, in particular to an operation optimization method and device for thermal power units based on differential consumption analysis. Background technique [0002] As the basic research work of thermal power unit operation optimization, consumption difference analysis is the basis for thermal power unit optimal operation, energy saving and consumption reduction. It continuously supervises and analyzes the key parameters in the operation of thermal power units, compares the actual operating values ​​of these parameters with the optimized target values, and calculates the impact of thermal power plants when these parameters deviate from the optimized target values ​​according to a certain consumption difference analysis model. The influence of coal consumption of the unit, so as to optimize the operation management of the thermal power unit, and determine the reasons, locations ...

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Problems solved by technology

[0015] The purpose of the embodiments of the present invention is to provide a thermal power unit operation optimization method and device based on consumption difference analysis to solve the problems caused by the difficulty in solving complex optimization problems with high dimensions and numerous constraints in the existing thermal power unit operation optimization technology. Theoretical optimal decision variables can not be obtained

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