通用变频器共用直流母线方案的设计与应用

本文介绍了一种在多传动系统中采用通用变频器，而且它代共用直流母线的方案。在传动系统中，再生能量经常发生，多台变频器通过直流母线互连，一台或多台电机产生的再生能量就可以被其他电机以电动方（Electric Power-Driven Mode）消耗吸收，这是一种非常有效的工作方式。如果采用能量回馈装置，还可以充分地将直流母线上的剩余再生能量直接回馈到电网中。本文还介绍了该方案在离心机（Centrifugal）、化纤（chemical Fibre）设备和造纸机上的应用。

Design and Application of the Scheme on Shared DC Bus for General Frequency Converters

The article introduces a scheme on shared DC bus for general frequency converters in multi-drive system. In the drive system, regenerated energy is frequently produced, but with multi-converters interconnected through shared DC Bus, the regenerated energy produced by one or more motors can be absorbed and consumed by other motors in electric power-driven mode. This is an effective working mode. If an electric energy feedback unit is applied, the remaining regenerated energy on common DC bus can be fully feed-backed to the power net. Moreover, the applications of the scheme to centrifugals, chemical fibre equipment and paper machines are introduced.