典型的送风机和回风机VAV系统的控制存在许多问题。这些系统的主要问题是影响送风机和回风机的许多变量的耦合，以及所用控制算法的缺陷。DDC控制系统可能会延迟时间，风扇关闭也会导致控制问题。由于这些条件，通常使用的控制策略无法实现合理的系统稳定性。另一种控制策略可用于纠正标准算法中的缺陷，并将送风机和回风机的相互作用解耦，以实现系统稳定性。 单位:I-PCITION:研讨会，ASHRAE交易，1988年，第94卷，pt。德克萨斯州达拉斯1号

There are many problems associated with the control of typical supply and return fan VAV systems. The principal problems with these systems are the coupling of many variables affecting the supply and return fans and deficiencies in the control algorithms being used. DDC control systems can times and fan turn-down also contribute to the control problems. Due to these conditions, the control strategies typically used have been unable to achieve reasonable system stability. An alternative control strategy can be used to correct the deficiencies in the standard algorithm and decouple the interaction of the supply and return fan to achieve system stability.Units: I-P