Abstract: Abstract: This paper introduce control requirement for RO and high pressure pump ，sketch the principle and inner important parameters. According to the characteristics for RO system and the high pressure pump performance curve , adjust inner parameters of transducer, direct starting High pressure pump, RO system is smooth running. Transducer Control High pressure pump and cancle Electronically VALVE is able to fulfill RO requirements

摘要： 摘要：本文介绍了反渗透膜、高压泵及工艺控制要求，简述了变频器的工作原理及内部重要参数；根据反渗透膜的特性及高压泵的性能曲线，通过调整变频器内部参数，直接启动高压泵，反渗透平稳投入运行。所以说，只需高压泵的变频控制不用设电动慢开门也能满足反渗透系统要求。

关键词: 关键词：反渗透膜 高压泵 变频器 控制 频率, Keywords：RO High pressure pump Frequency