Ansaldo Sistemi Industriali MV Drives Specifications
Ansaldo Sistemi Industriali (ASI) medium voltage drives technical data:
| Silcovert TN | |
|---|---|
| Topology | 3-level Neutral Point Clamped Voltage Source Inverter |
| Input section | Diode 12-pulse or 24-pulse or HV IGBT based 3L-NPC AFE |
| Input voltage | 3300V |
| Efficiency | >98% at rated load for drives with diode rectifier, AFE – no data |
| Input power quality | 12-pulse IEEE 519 compliance – In/Isc ratio dependent, 24-pulse and AFE meets IEEE 519; PF>0.96 at rated load for diode rectifier, >0.98 for active front end |
| DC link section | common DC link capacitors |
| Output section | HV IGBT based 3-level NPC VSI |
| Output power | air cooled: 1170-4740kW (1568-6356HP); water cooled: 1390-12570kW (1864-16856HP) |
| Output voltage | 0-3300V |
| Output frequency | normal: 5-70Hz; extended: 5-140Hz |
| Field weakening | no data |
| Switching frequency | no data |
| Output waveform | 5-level line-to-line voltage waveform |
| Motor type | induction or synchronous |
| Overload | 110% rated current for 1 min. every 10 minutes or 150% rated current for 1 min. every 10 minutes |
| Cooling | air-cooled or water-cooled |
| Control scheme | V/Hz, Sensorless Vector Control, FOC (with encoder) |
| Dynamic speed error | no data |
| Steady-state speed error | 0.01% with encoder |
| Torque response time | 5ms |
| Torque accuracy | no data |
| Modulation technique | hysteresis modulation |
| Special features | - |
| Silcovert GN | |
|---|---|
| Topology | 3-level Neutral Point Clamped Voltage Source Inverter |
| Input section | Diode 12-pulse or 24-pulse or IGCT based 3L-NPC AFE |
| Input voltage | 3300V |
| Efficiency | >98% at rated load |
| Input power quality | 12-pulse IEEE 519 compliance – In/Isc ratio dependent, 24-pulse and AFE meets IEEE 519; PF>0.98 |
| DC link section | common DC link capacitors |
| Output section | IGCT based 3-level NPC VSI |
| Output power | 7000-17800kW (9387-23870HP) |
| Output voltage | 0-3000V for diode rectifier; 0-3300V for AFE |
| Output frequency | normal: 10-65Hz; extended: 10-110Hz |
| Field weakening | no data |
| Switching frequency | no data |
| Output waveform | 5-level line-to-line voltage waveform |
| Motor type | induction or synchronous |
| Overload | 110% rated current for 1 min. every 10 minutes or 150% rated current for 1 min. every 10 minutes |
| Cooling | water-cooled |
| Control scheme | FOC |
| Dynamic speed error | no data |
| Steady-state speed error | 0.01% with encoder |
| Torque response time | 5ms |
| Torque accuracy | no data |
| Modulation technique | hysteresis modulation |
| Special features | - |
| Silcovert S | |
|---|---|
| Topology | Load Commutated Inverter |
| Input section | SCR 6-pulse, 12-pulse or 24-pulse |
| Input voltage | 6000V |
| Efficiency | >98,5% at rated load |
| Input power quality | 6-pulse does not meet IEEE 519; 12-pulse IEEE 519 compliance – In/Isc ratio dependent, 24-pulse and AFE meets IEEE 519; PF – varying with the load – reactive power compensation is necessary |
| DC link section | DC link reactor |
| Output section | 6-pulse or 12-pulse SCR load commutated inverter |
| Output power | 1-40MW (1341-53640HP) |
| Output voltage | 0-6000V |
| Output frequency | 0-120Hz |
| Field weakening | no data |
| Switching frequency | load commutation |
| Output waveform | high output current harmonics resulting torque pulsations especially for 6-pulse inverters |
| Motor type | synchronous |
| Overload | no data |
| Cooling | forced-air- or water-cooled |
| Control scheme | no data |
| Dynamic speed error | no data |
| Steady-state speed error | 0.01% with encoder |
| Torque response time | no data |
| Torque accuracy | no data |
| Modulation technique | load commutation |
| Special features | high efficiency |
| Silcovert C | |
|---|---|
| Topology | Cycloconverter |
| Input section | 3 antiparallel SCR 6-pulse converters or 3 antiparallel SCR 12- pulse converters |
| Input voltage | 1200-1500V |
| Efficiency | >95% at rated load |
| Input power quality | PF – varying with the load |
| DC link section | no DC link |
| Converter power | 3650-10700kVA air-cooled; 3750-11400kVA water-cooled |
| Output voltage | 0-1500V for 6-pulse; 0-3300V or 0-4160V for 12-pulse configuration |
| Output frequency | 0-24Hz, up to 720 rpm for 2-pole motor and 60Hz main frequency |
| Field weakening | no data |
| Switching frequency | natural commutation |
| Output waveform | no data |
| Motor type | synchronous or induction |
| Overload | no data |
| Cooling | air- or water-cooled |
| Control scheme | no data |
| Dynamic speed error | no data |
| Steady-state speed error | 0.01% with encoder |
| Torque response time | no data |
| Torque accuracy | no data |
| Modulation technique | natural commutation |
| Special features | low speed, high torque applications |
References:
- Technical Brochure. SILCOVERT-TN, 3300V, 1300 to 14400kVA
- Technical Brochure. SILCOVERT-GN, 9000 to 36000kVA
- SILCOVERT S. MV LCI Drives for synchronous motors and generators up to 40MW
- SILCOVERT C. Direct AC/AC Cycloconverter
- Ansaldo Sistemi Industriali Power Electronics for Industrial Applications
