热系统

此示例展示如何对简单的房屋供暖系统进行建模。该模型包含一个加热器、温控器和一个房屋结构，该房屋结构由室内空气、房屋墙壁、窗户和屋顶这四部分组成。

此示例展示如何使用集总参数模型来仿真无刷伺服电机的热行为。定子铁堆、定子绕组和转子中因功率损耗产生的热量由三个热流源表示：定子铁耗 (Q_Iron)、绕组功耗 (Q_Wind)、磁化和涡流转子损耗。这些损耗在电机典型循环仿真期间记录并存储在 motor_losses.mat 文件中。电机热路由热导率、热质量和对流传热模块组成，它们在绕组、定子铁芯、电机外壳、转子、前后轴承板和电机安装法兰等电机部件中再现热路径。电机通过外壳-大气、法兰-大气和后板-大气接触件与大气交换热量。通过将理想温度源设置为 300 K 来仿真环境条件。

How thermal blocks can model a long iron rod that is fixed to a hot base at one end and exposed to air along its length and at its free end. The rod is an extended surface that undergoes conduction along its length and convection with air in the direction perpendicular to its length. Extended surfaces are often used as fins to cool a solid.