为供暖、通风和空调（HVAC）系统提供标准化控制设备的一种方法是通过一个或多个InterChangeAB/e单回路数字控制器（SLDC）。许多commeroia/SLDC将众所周知的比例、积分和微分控制与自整定和/或自适应控制能力相结合/为了预测未来需要对SLDC进行可重复性测试，在个人计算机上编程了模拟热水空气加热盘管的练习器，并测试了四种具有手动启动自校正控制功能的不同商用SLDC的响应。 虽然ff还为时过早，无法得出一般结论，但所研究的四分之三的SLDC为模拟加热线圈提供了稳定、响应迅速的控制。四个控制器均采用开环阶跃响应特性进行自校正，且对干扰的动态响应不同:（1）一个控制器使用0%到100%到0%的控制信号周期进行自校正，未能获得稳定的控制参数；（2） 第二个控制器，其使用电流值，以100%至0%的控制信号周期进行自我控制。调谐，在负载干扰下提供最理想的控制；以及（3）剩下的两个控制器，它们使用单个控制信号阶跃变化进行自我调节- 调谐，在设定点干扰下提供优越的控制。引用:研讨会，ASHRAE Trans。，第95卷，第。2.

One approach to providing standardized control equipment for heating, ventilating, and air-conditioning (HVAC) systems is through one or more interohangeab/e single-loop digital controllers (SLDC). Many commeroia/ SLDC combine the well-known combination of proportional, integral, and derivative control with serf-tuning and/or adaptive control capabilities./n anticipation of the future need to subject SLDC to reproducible tests, an exerciser simulating a hot water air-heating coil was programmed on a personal computer and the response of four different commercial SLDC with manually initiated self-tuning control capabilities was tested. While ff is too early to make general conclusions, three out of four SLDC studied provided stable, responsive control for the simulated heating coil. All four controllers used open-loop step-response characteristics for self-tuning, and the dynamic response to disturbances varied: (1) one controller, which used a 0% to 100% to 0% control signal cycle for self-tuning, failed to obtain stable control parameters; (2) a second controller, which used a current value to 100% to 0% control signal cycle for self.tuning, provided the most desirable control under load disturbances; and (3) the two remaining controllers, which used a single control signal step change for self-tuning, provided superior control under setpoint disturbances.