A SIMPLE REACTIVE/HARMONIC COMPENSATION METHOD WITH VOLTAGE TYPE CONVERTER

전압형 컨버터를 이용한 무효/고조파 보상을 위한 선형 제어 방법

This paper presents a simple method to compensate reactive/harmonic current components in power lines, with voltage type current controlled converter. The method proposed differs from conventional methods in that it does not rely on explict evaluation of active power. Instead, the closed-loop control of the do link voltage of the compensator plays a major role in adjusting the compensation current. It is shown that the system can be modelled as a simple linear system, which facilitates th analytical approach to the system characteristics. The dynamic performances are examined through the digital simulation and some aspects on the controller design are discussed. Experimental results showed good agreement with the anticipate performance