Indoor thermal environment control method based on model reduction and multi-model prediction control

A technology of model reduction and predictive control, which is applied in the direction of using electric mode for temperature control, etc., which can solve problems such as model mismatch.
CN103995548AInactive Publication Date: 2014-08-20JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2014-08-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an indoor thermal environment control method based on model reduction and multi-model prediction control. The method includes the three main steps that firstly, a temperature variation section of an indoor user region is segmented, modeling is conducted on the equilibrium state position of each segment through computional fluid dynamics (CFD) software and the proper orthogonal decomposition (POD) technology, and a low-order linear building thermal environment in a multi-model type is reconstructed; secondly, multi-model switching time is reasonably selected through an optimization algorithm; thirdly, accurate control over the user region temperature is conducted on each sub model through a prediction control method. Low-order models of the building indoor thermal environment are constructed through the POD technology and the multi-model method, the influence of space distribution on the temperature variation can be fully taken into consideration in a temperature regulation strategy, and accuracy of indoor temperature control is improved. Compared with an existing temperature control strategy adopted in large space, the indoor thermal environment control method has the advantages that accuracy is high, and energy saving of a building is facilitated.
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Description

technical field

[0001] The invention relates to an indoor thermal environment control method based on model reduction and multi-model predictive control, which belongs to the field of building environment and building energy saving. Background technique

[0002] my country is a big energy-consuming country, among which building energy consumption accounts for about 25% of the total energy consumption of our society, and the proportion is still increasing year by year. With the continuous improvement of people's living quality and building energy-saving requirements, how to control and optimize the building's indoor thermal environment and air-conditioning energy consumption has attracted more and more attention.

[0003] Under the current traditional HVAC control strategy, each control parameter in the building's indoor thermal environment is usually simplified to a uniform value, ignoring the influence of spatial distribution. In fact, due to the air flow and heat transfer...

Claims

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