现在的港口装卸设备基本都采用了变频技术与PLC技术。变频技术具有频率范围宽,动态响应快,工作效率高,输出性能好,使用方便等其它调速技术无法比拟的特点;变频技术和PLC技术还具有故障率低,能耗小等优点;这两项技术的采用,为港口在节约电力、保障安全方面起到了重要作用。本文 Now the port loading and unloading equipment are basically used frequency conversion technology and PLC technology. Frequency conversion technology has the advantages of wide frequency range, fast dynamic response, high work efficiency, good output performance, easy to use and other speed control technologies; frequency conversion technology and PLC technology also have the advantages of low failure rate and low energy consumption; these two The adoption of technology has played an important role in saving electricity and ensuring safety in the port. This article