控制系统产生振荡是VAV空调系统的最大问题之一。建立了空调室及控制器的动态特性模型 ,开发了计算机仿真系统 ,并对VAV空调系统进行了仿真。仿真结果表明控制系统的稳定范围受控制参数和系统参数的影响。得到的极限参数ku,ωu 的数学式对实践有一定指导作用 Vibration control system is one of the biggest problems of VAV air conditioning system. The dynamic characteristic model of air-conditioned room and controller is established, the computer simulation system is developed, and the VAV air-conditioning system is simulated. The simulation results show that the stability of the control system is affected by the control parameters and system parameters. The mathematical formulas of the ultimate parameters ku, ωu have certain guiding effect on practice