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A robust model predictive control strategy for improving the control performance of air-conditioning systems

机译：用于改善空调系统控制性能的鲁棒模型预测控制策略

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摘要

This paper presents a robust model predictive control strategy for improving the supply air temperature control of air-handling units by dealing with the associated uncertainties and constraints directly. This strategy uses a first-order plus time-delay model with uncertain time-delay and system gain to describe air-conditioning process of an air-handling unit usually operating at various weather conditions. The uncertainties of the time-delay and system gain, which imply the nonlinearities and the variable dynamic characteristics, are formulated using an uncertainty polytope. Based on this uncertainty formulation, an offline LMI-based robust model predictive control algorithm is employed to design a robust controller for air-handling units which can guarantee a good robustness subject to uncertainties and constraints. The proposed robust strategy is evaluated in a dynamic simulation environment of a variable air volume air-conditioning system in various operation conditions by comparing with a conventional PI control strategy. The robustness analysis of both strategies under different weather conditions is also presented.
机译：本文提出了一种鲁棒的模型预测控制策略，可通过直接处理相关的不确定性和约束来改善空气处理单元的送风温度控制。该策略使用一阶加时滞模型（具有不确定的时滞和系统增益）来描述通常在各种天气条件下运行的空气处理机组的空调过程。使用不确定多面体来表述时延和系统增益的不确定性，这些不确定性暗示了非线性和可变的动态特性。基于这种不确定性公式，采用了基于离线LMI的鲁棒模型预测控制算法来设计用于空气处理机组的鲁棒控制器，该控制器可以在受到不确定性和约束的情况下保证良好的鲁棒性。通过与常规PI控制策略进行比较，在各种运行条件下的可变风量空调系统的动态仿真环境中评估了所提出的鲁棒策略。还介绍了两种策略在不同天气条件下的鲁棒性分析。

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  • 来源
    《Energy Conversion & Management》 |2009年第10期|2650-2658|共9页
  • 作者

    Gongsheng Huang; Shengwei Wang; Xinhua Xu;

  • 作者单位

    Department of Building Services Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong;

    Department of Building Services Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong;

    Department of Building Environment and Services Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei Province 430074, China Department of Building Services Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    time-delay uncertainty; robust model predictive control; air-conditioning system; robustness;

    机译：延时不确定性鲁棒模型预测控制;空调系统;健壮性;

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