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首页> 外文期刊>Mathematical Problems in Engineering >A Modelling and Control Approach for a Type of Mixed Logical Dynamical System Using in Chilled Water System of Refrigeration System
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A Modelling and Control Approach for a Type of Mixed Logical Dynamical System Using in Chilled Water System of Refrigeration System

机译：制冷系统冷水系统中一类混合逻辑动力系统的建模与控制方法

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摘要

The chilled water system of central air conditioning is a typical hybrid system. The dynamic adjustment of cooling capacity based on hybrid system can achieve accurate temperature control and real-time energy saving. Mixed logical dynamical (MLD) systems have advantage for solving constrained optimization problems of this type of case by numerical methods. This paper proposes a novel modified type of MLD system, which enhances the model applicability and improves the switching flexibility and control effect for the framework. In order to meet the needs of cooling capacity and energy saving, the optimal control problem is transformed as MIQP problem by defined performance index. As a numeral example of application, the model and control method is used in pumps group control for variable water volume in chilled water system of central air conditioning. At last, the dynamic and energy-saving effects of the system are simulated, which shows the ideal control results.
机译：中央空调的冷冻水系统是典型的混合系统。基于混合动力系统的制冷量动态调节可以实现精确的温度控制和实时节能。混合逻辑动力学（MLD）系统具有通过数值方法解决这种情况下的约束优化问题的优势。本文提出了一种新颖的改进型MLD系统，该系统增强了模型的适用性，提高了框架的切换灵活性和控制效果。为了满足制冷量和节能的需求，通过定义的性能指标将最优控制问题转化为MIQP问题。作为应用的一个数字示例，该模型和控制方法用于中央空调冷冻水系统中可变水量的泵组控制中。最后，仿真了系统的动态节能效果，显示了理想的控制效果。

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  • 来源
    《Mathematical Problems in Engineering》 |2019年第7期|7131380.1-7131380.12|共12页
  • 作者

    Zhang Yan; Chu Xiaoli; Liu Yang; Liu Yongqiang;

  • 作者单位

    Guangdong Univ Finance & Econ Ctr Fac Dev & Educ Technol Guangzhou Guangdong Peoples R China|South China Univ Technol Sch Elect Power Guangzhou Guangdong Peoples R China;

    Xidian Univ Sch Econ & Management Xian Shaanxi Peoples R China|Guangdong AIB Polytech Coll Network Ctr Guangzhou Guangdong Peoples R China;

    South China Univ Technol Sch Elect Power Guangzhou Guangdong Peoples R China;

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