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本文以氨压缩机在变频调速改造中的润滑问题为研究对象，针对调速过程中出现的润滑油量不足问题，通过分析润滑系统的结构和工作原理，提出了外加辅助油泵补油的改进方法，并根据润滑系统在调速中数学模型不易确定的特点，采用了不依赖于数学模型的模糊控制方法构成辅助油泵的控制系统。文中详细阐述了改造后润滑系统的电气控制系统原理、模糊控制器设计以及润滑系统和氨压缩机在调速中的协调、配合问题。该系统在大庆石化总厂一段时间的实际运行情况表明，改进后润滑系统的动、静态特性完全达到了工艺指标的要求，运行效果良好。
In this paper, the ammonia compressor in the frequency conversion speed regulation of the lubrication issues for the study, in response to the speed of the process of lack of lubricant, the lubrication system by analyzing the structure and working principle, the proposed additional auxiliary oil pump to improve the oil Method, and according to the mathematical model of the lubrication system is not easy to determine the characteristics of governor, using a fuzzy control method that does not rely on the mathematical model to form auxiliary pump control system. In this paper, the principle of the electrical control system, the design of the fuzzy controller and the coordination and cooperation between the lubricating system and the ammonia compressor in speed regulation are elaborated in detail. The actual operation of Daqing Petrochemical Plant for a period of time shows that the dynamic and static characteristics of the improved lubrication system fully meet the technical requirements and the operation effect is good.