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根据对高架门机自升过程的分析，建立了控制系统数学模型。提出了一种改善控制系统稳定性的策略，与原控制方案相比，系统稳定性增加了近十倍，是一种可行的控制方法。
Based on the analysis of the escalator process of overhead door crane, a mathematical model of control system is established. Proposed a strategy to improve the stability of the control system, compared with the original control scheme, the system stability increased nearly ten times, is a viable control method.