Heat pump heating multi-objective optimization control method based on model

Abstract

The invention discloses a heat pump heating multi-objective optimization control method based on a model. According to the method, firstly, a dynamic change model for air source heat pump heating temperature is built, on the basis, an air source heat pump energy consumption model is built, a temperature control and energy saving comprehensive objective function is set, and a total multi-objective dynamic optimization model is obtained. The dynamic optimization model is dispersed to an algebraic equation with nonlinear programming through a multipoint shooting method, and then optimum air source heat pump output power is obtained through sequential quadratic programming (SQP) solving technology. According to relation between the air source heat pump output power and frequency, optimum air source heap pump compressor frequency in different moments is confirmed, and finally the optimum air source heap pump compressor frequency is controlled in optimum value through predictive control technology. According to the heat pump heating multi-objective optimization control method based on the model, the requirements for operation energy saving and comfort are considered, the air source heat pump operation frequency can be regulated in real time, and a system is enabled to be in optimizing operation.

Description

technical field [0001] The invention belongs to the technical field of optimization control, and relates to modeling and dynamic real-time optimization control of a heat pump air conditioning and heating system, in particular to a model-based multi-objective optimization control method for air source heat pump floor heating. Background technique [0002] With the improvement of people's living standards, the demand for household floor heating is increasing, and since household floor heating requires more energy consumption, it is very important to reduce energy consumption and maintain a certain degree of comfort. With the shortage of energy and the implementation of national energy conservation and emission reduction policies, the development and utilization of renewable energy is an important way to save energy and reduce consumption. Air source heat pump air conditioners can absorb heat from the air, use one part of electric energy to produce multiple parts of heat, and a...

AI Technical Summary

Problems solved by technology

The general air source heat pump floor heating system cannot optimize energy saving according to the ambient temperature and the dynamic characteristics of the system, and generally does not consider changing the operation strategy according to changes in electricity prices. Under constant load, there are problems such as poor floor heating temperature control and insufficient comfort.

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