LS Industrial Systems has recently entered the medium voltage drives market with the new product – LSMV. It is a cascaded multilevel H-bridge type inverter. Technical specifications of the drive are available below.
LSMV
Topology
Cascaded H-Bridge Multilevel Inverter
Input section
Diode 18-pulse or 36-pulse rectifier
Input voltage
3300V, 4160V, 6600V, 10000V
Efficiency
97% at rated load
Input power quality
18-pulse and 36-pulse meet IEEE 519 [...]
Posted on July 17, 2009, 11:27 pm, by Paweł Szymula, under
ABB.
ABB has recently introduced a new medium voltage drive – ACS 2000. It is IGBT based five-level diode-clamped* voltage source inverter. Main product features according to the manufacturer documentation are:
AFE 5-level IGBT rectifier with transformerless design** (direct-to-line connection is possible), two-winding input transformer is an alternative,
full load/speed input power factor correction and regenarative braking ability,
possible [...]
Rockwell Automation manufactures three medium voltage drive types – all of them are CSI topology. The main differences between types are: power range, input section configuration, cabinets design – footprint, cooling and control voltage.
PowerFlex 7000A ‘A’ Frame
Topology
Current Source Inverter
Input section
PWM SGCT based rectifier with input capacitors, 6-pulse SCR rectifier, 6 SCRs/SGCTs for 2400V (2 [...]
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