GE DS200SDCCG2A Gas turbine characteristic module

Drive technology All conveyor drives are equipped with HXR type six-pole totally enclosed fan-cooled squirrel-cage motors fed by ACS 600 frequency converters. They are low-voltage drives for a supply voltage of 690 V, all designed for 4-quadrant operation, i.e. working as motors and generators. The electrical energy generated during the braking process is fed back into the grid through grid inverters.Two different concepts have been implemented on the frequency-converter systems, depending on the number of motors in question: • single drive • multi drive

While the single drive

 simply speaking, consists of one grid-side and one motor-side inverter, the multi drive is more complicated. Here one diode rectifier and one grid inverter each feed in parallel on one common DC busbar which, in accordance with the drive configuration, supplies up to three inverter units.All the ABB frequency converters used are based on IGBT power semiconductors and are characterised, in particular, by a modern control concept called direct torque control (DTC®). Contrary to the well-known pulse-width modulation (PWM) the DTC® controls directly the torque and stator flow of the motor. That lends the drive a higher control accuracy and better dynamic properties, especially in the starting and braking phase.

Guiding principles for dimensioning 

the drives have been not only the mechanically required torque but also the objective to use common hardware as far as possible. Another important criterion has been the demanded high availability of the system. This is why a so-called emergency operation has been foreseen for the multi drives, permitting the continued use of the conveyor system with reduced performance in case of failure of a supply unit or inverter.

 Company product range

----------------------Ruichang Mingsheng Automation Equipment Co., Ltd----------------------

PLC module, programmable controller, CPU module, IO module, DO module, AI module, DI module

Network communication module,

Ethernet module, motion control module, analog input module, analog output module, digital input module, digital output

Module, redundancy module, power module, relay output module, relay input module, processor module