KAI®2 HV
Output power 100kVA – 250kVA
The SKAI 2 HV integrates a universal three-phase AC/DC and DC/AC current conversion product platform dedicated to electric vehicles. It meets the requirements for high power density, high reliability and automotive EMI compatibility. Its QUASAR motor control software allows the power transmission system to operate more efficiently.
application
The SKAI®2 "off-the-shelf" converter series has been introduced into various vehicle electrification applications. For example, an electric drive system with a standardized motor/generator flange improves the drive to make it easier to fit existing vehicle designs. These transmission systems have been developed for use in various modes of transportation, namely buses, light trucks, agricultural and construction machinery, and marine applications or automobiles.
Advantage
SKAI 2 HV power electronics platform - now the second generation - highly integrated inverters provide ideal power system solutions for both pure electric and hybrid vehicle applications. Compared to other vehicle inverters on the market, the power density of the SKAI2 HV up to 20kVA/L can significantly reduce the size and the space it occupies. From the design point of view, the system can work in 120V ~ 800V (850V optional) voltage range, the output power up to 250kVA.
The elaborate power interface design allows all SKAI 2 HV's interfaces to be placed in front of the narrow inverter, thus minimizing the required assembly space while making manual operations in the vehicle easier.
The IGBT-based SKAI2HV inverter uses sintering technology, 100% non-welded 600V or 1200V power semiconductors, and polypropylene film DC bus capacitors. The controller integrated with the latest generation DSP also includes gate drive devices, current, voltage and temperature sensors. Assembled in a dust and water resistant enclosure rated IP67.
Compact inverters can withstand high vibration amplitudes up to 10g rms. The QUASAR motor control software complements the system functionally to make this validated product more complete.
Through the QUASAR motor control software, the SKAI2 HV can monitor the junction temperature of each power semiconductor in real time, so that it can take appropriate measures on the critical factor “life temperature increase†that affects the lifespan to handle all challenging working conditions. Depending on the parameterization of the software, instantaneous power loss can be degraded in real time, making it possible to limit the junction temperature in real time. In principle, this can be achieved by reducing the actual output current or the switching frequency, the actual driving performance of the vehicle may be slightly derated, but it will not stop running and affect driving. With intelligent control, the performance of the drive system can be made more reliable and the design life can be maintained.
Product Range
The water-cooled SKAI 2 HV can be equipped with 600V or 1200V power semiconductors. Depending on customer application requirements, SKAI2 HV versions with or without DSP can be selected. For the SKAI2 HV with integrated DSP, the upper vehicle controller can control the SKAI2 HV via the CAN-BUS interface according to the speed or torque control command. For the version without the DSP, the power semiconductor switch command PWM is directly input to control the SKAI2 HV. .
Key features
- Optimization of permanent magnet synchronous, AC induction and brushless DC motor or generator control characteristics
- Torque and speed control modes
- Weak magnetic control and derating function
- Gate driver interface (optional)
- IP67 housing
- High power density
- High power cycle and temperature cycling capability with sintered power semiconductors
- EMI compatible with 2004/104/EC
- Other required engineering services
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