Abstract:

This article firstly presents the cause,significance,means and ways of reactive power compensation.Then it introduces the design structure and principle of the traditional electronic automatic compensation control system,the auto-controlling system of reactive power compensation based on the SCM control technology and the auto-controlling system of reactive power compensation based on the PLC control technology.Finally,the author compares the three control systems and their circuit structure features to provide a reference for electric power design.

Key words: reactive power compensation;SCM control compensation;PLC control compensation