循环热管的动态状态空间建模与基于模型的控制设计(CS SY)

• 2020 年 1 月 19 日
• 筆記

对于航空航天、汽车或服务器系统中电子元件的热控制，散热器通常远离热源。因此，热传导系统是有效冷却电子元件所必需的。循环热管(LHPs)就是这样的传热系统，它利用蒸发和冷凝来达到比单纯导热更高的传热系数。LHP的工作温度控制着电子元件的温度，但取决于散热量和散热器的温度。因此，LHP上的控制加热器提供了在固定的设定值温度下控制操作温度的能力。在基于模型的控制加热器控制器控制设计中，文献中现有的LHP状态空间模型关注的是设定值响应，而没有对流体动力学进行建模。然而，流体动力学决定了LHP的扰动行为。因此,流体的动力学状态空间模型纳入一个新的LHP,这不仅能够模拟LHP扰动下的行为变化,但也可以用于基于模型的非线性鲁棒控制器的设计,实现了一种改进的控制性能比基于状态空间模型前LHP的非线性控制器。

原文题目：Dynamic state-space modeling and model-based control design for loop heat pipes

原文：For the thermal control of electronic components in aerospace, automotive or server systems, the heat sink is often located far from the heat sources. Therefore, heat transport systems are necessary to cool the electronic components effectively. Loop heat pipes (LHPs) are such heat transport systems, which use evaporation and condensation to reach a higher heat transfer coefficient than with sole heat conduction. The operating temperature of the LHP governs the temperature of the electronic components, but depends on the amount of dissipated heat and the temperature of the heat sink. For this reason, a control heater on the LHP provides the ability to control the operating temperature at a fixed setpoint temperature. For the model-based control design of the control heater controller, the current LHP state-space model in the literature focuses on the setpoint response without modeling the fluid's dynamics. However, the fluid's dynamics determine the disturbance behavior of the LHP. Therefore, the fluid's dynamics are incorporated into a new LHP state-space model, which is not only able to simulate the LHP behavior under disturbance changes, but is also used for the model-based design of a robust nonlinear controller, which achieves an improved control performance compared to the nonlinear controller based on the previous LHP state-space model.

原文作者：Thomas Gellrich, Clara Sester, Max Okraschevski, Stefan Schwab, Hans-Joerg Bauer, Soeren Hohmann

原文地址：https://arxiv.org/abs/2001.05793