西门子共直流母线可回馈电控系统在门座式起重机上的应用

The Application of Siemens Common DC Bus Crane Control System on Slewing Luffing Crane

针对传统门机采用制动电阻耗能方式所带来的能量浪费问题，提出了一种适合于门机的可回馈电控系统。系统采用共直流母线方案，并采用双并联ALM有源整流模块，提高冗余度的同时，在电源侧产生实际电流效果接近正弦波，能抑制有害谐波。

Aiming at the energy losses of the conventional crane control system on slewing luffing crane, which using braking resistors, a proper regenerativable crane control system was proposed. The common DC bus solution was chosen for the system and the parallel connection of two self-comutated infeeds （ALM） was taken as well in this system, which increases the system redundency. Futhermore, ALM draw a virtually sinusoidal current from the supply which limits any harmful harmonics.