SKAI® 2 HV
100kVA up to 300kVA
SKAI® 2 HV – Ultra Compact Converter for Electrified Utility Vehicles
SKAI 2 HV comprises a versatile 3-phase AC/DC and DC/AC converter platform designed for electrified vehicles. It covers key requirements such as high power density, exceptional ruggedness and automotive EMI compliance. The integrated motor control software SKAIware ensures highly efficient operation of the electric drive train.
SKAI® 2 HV Benefits
The SKAI 2 HV power electronic platform comprises highly integrated converters which provide the ideal powertrain solution for electric and hybrid electric vehicle applications. Power densities up to 25kVA / l bring a notable size reduction compared with other available standard converter products. The products operate with supply voltages of 120V to 800V and output power ratings up to 300kVA. Thanks to the power interface mechanical design, the SKAI 2 HV connections reduce assembly space requirements as well as the installation requirements within the vehicle.
The IGBT-based SKAI 2 HV converter operates on sintered 100% solder-free 1200V power semiconductors and features polypropylene film DC-link capacitors. The DSP-based controller includes gate driver electronics, as well as current, voltage and temperature sensors, all integrated into a waterproof IP67 enclosure. The compact SKAI 2 HV inverter withstands high vibration amplitudes of up to 10gRMS. The embedded SKAIware motor control software adds functionality to the system and completes this lab- and field-tested package.
Coupled with the motor control software SKAIware, the SKAI 2 HV monitors the individual power semiconductor junction temperatures in real time. In this way, the fatigue parameter “junction temperature increase” can be influenced as needed and challenging operating conditions managed. Depending on the software parameterisation, it is possible to limit the junction temperature by de-rating instantaneous power losses in real time. In principle, this can be achieved by reducing the actual output current or the switching frequency. The vehicle might slightly de-rate its actual performance as a result but it will not stop operating. By incorporating the intelligent control feature, the drivetrain performance is more rugged and the expected service life can be guaranteed.
SKAI® 2 HV Key Features
- Optimized control of permanent magnet synchronous, AC induction and brushless DC motors or generators
- Torque and speed control mode
- Field weakening control and de-rating function
- Gate drive interface (optional)
- IP67 enclosure
- High power density
- High power cycling and temperature cycling capability thanks to sintered power semiconductors
- EMI compliant in accordance with UNECE R10
- Additional engineering services on request
SKAI® 2 HV Applications
The SKAI 2 HV ”Off-the-Shelf“ converter family has been introduced to cover a broad range of vehicle electrification applications. Examples are electric drivetrains with standardised motor/generator flanges for easy integration into existing vehicle designs. These drivetrains have been developed for many vehicle types, i.e. buses, lightweight trucks, agriculture and construction machinery as well as marine applications or cars.
Configurable Converter Platform for E-Mobility
Versatile „off-the-shelf“ versions
With integrated controller (CAN interface)
- Full converter with generic drive control software SKAIware
- Full converter ready to run with customer specific drive software
With integrated gate driver (switching signal interface)
- Converter with gate driver, protection functions, current, DC-voltage, temperature sensing
Optional services available
- End-of-line flashing of customer specific software
- Individual parameterisation of motor control software
Versatile interfaces
for signal and power
For motor position sensors
- Resolver
- Sin/Cos encoder
- Optionally incremental encoder
For motor temperature sensors
- KTYx/YBBxxx/PTxx/NTCxx
Multi-purpose I/O lines
- 2 x digital in/out, 2 x analog in
Flexible power connections
- Cable glands 35mm2-70mm2 optional power connectors for process-safe assembly
- Optional two DC lines for power distribution
All connections on narrow, front side of inverter
Fast drive
commissioning
PC based configuration tool features
- ECU/VCU simulation
- Operating values displayed in real-time
- Variable visualisation and recording with the integrated scope function
- Configuration via parameter sets
- CAN logger for supervising and data logging
- Automated position sensor offset calibration
Additional engineering services on request
SKAI® 2 HV Product Range
The liquid cooled SKAI 2 HV is available with 1200V power semiconductors. Depending on the application setup, the superior vehicle controller can interface to SKAI 2 HV via CANbus based speed or torque control commands or, alternatively, with power semiconductor switching commands.
SKAI® 2 HV Product Portfolio
| 1200V IGBT |
|---|
| SKAI 45 A2 GD12-xQ | with motor control software SKAIware |
| SKAI 45 A2 GD12-xC | with controller |
| SKAI 45 A2 GD12-xD | with gate driver |