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Multi-objective optimal control method of air source heat pump with multi-parent genetic algorithm based on radial basis function neural network

A multi-objective optimization, air source heat pump technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of model optimization, inability to establish a system, etc., to reduce consumption, reduce greenhouse gas emissions, The effect of reducing the time and cost of retrofitting

Active Publication Date: 2021-08-03
ZHEJIANG UNIV OF TECH
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Problems solved by technology

Traditional experimental methods often can only predict the established model or only perform single-objective optimization, and cannot directly model the system and perform multi-objective optimization

Method used

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  • Multi-objective optimal control method of air source heat pump with multi-parent genetic algorithm based on radial basis function neural network
  • Multi-objective optimal control method of air source heat pump with multi-parent genetic algorithm based on radial basis function neural network
  • Multi-objective optimal control method of air source heat pump with multi-parent genetic algorithm based on radial basis function neural network

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Experimental program
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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] refer to figure 1 , a multi-parent genetic algorithm air source heat pump multi-objective optimal control method based on radial basis function neural network, including the following steps:

[0034] Step 1. Input the input and output variables into the system according to user needs;

[0035] Select compressor frequency f, expansion valve opening p, water pump frequency n as input variables, system COP and heating capacity Q h Or carbon dioxide emission m and heating capacity Q hAs an output variable, normalize the input training sample data so that it is between [0,1]. The training sample data can come from literature or measured in experiments. The normalization formula is as follows:

[0036]

[0037] Where k is the normalized value, x is the normalized data, and x min 、x max are the minimum and maximum values ​​in the normalized data, respectively; ...

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Abstract

A multi-parent genetic algorithm multi-objective optimization control method for air source heat pumps based on radial basis function neural network, comprising the following steps: Step 1, inputting input and output variables into the system according to user requirements; Step 2, radial basis function Create, train and test the neural network; step 3, based on the trained radial basis function neural network, use the multi-parent genetic algorithm to perform multi-objective optimization on the air source heat pump; step 4, through the above steps, the optimal solution can be obtained according to the Pareto solution The parameter value of the input variable of the solution is obtained, and the obtained input variable value is passed to the system to adjust the control quantity of the heat pump. The present invention can also quickly realize the COP heating capacity Q of the system while having high precision h Or carbon dioxide emission m and heating capacity Q h Multi-objective optimization.

Description

technical field [0001] The invention belongs to an air source heat pump and relates to a multi-objective optimal control method for an air source heat pump. Background technique [0002] The air source heat pump absorbs the heat in the air as an energy source, and drives the compressor to operate with a small amount of electric energy to release the heat in the air absorbed by the evaporator to the heating object through the heat exchanger. An energy-saving device where heat source air flows to a high-level heat source. Air source heat pumps have a wide range of applications, low operating costs, no pollution to the environment, and good energy saving and emission reduction effects. They have been widely used in chemical, thermal energy, heating, HVAC and other fields. [0003] In today's world, as a greenhouse gas, carbon dioxide emissions have received widespread attention, and the energy efficiency ratio COP, carbon dioxide emissions and heating Q h It is an important p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 徐英杰陈宁许亮峰蒋宁
Owner ZHEJIANG UNIV OF TECH
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