Air-Cooled IGBT Stacks

IGBT Stack family up to 1.5MVA for air-cooled inverters


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Air-Cooled IGBT Stacks Benefits

The SEMIKUBE platform is a family of pre-qualified power assemblies, which meet rigorous qualification tests and certifications. The platform integrates advanced technologies, which maximize performance and power density. SEMIKUBE, thanks to its modular design and patented DC connections, allows for designs in various converter power ranges.

Air-Cooled IGBT Stacks Product Family


SEMIKUBE is based on 1200V and 1700V SEMITRANS 62mm industrial standard modules. The SEMIKUBE stacks are available in four different sizes up to 1MW. Sensors for feedback signals of DC-voltage, temperature and output currents are already integrated. The SEMIKUBE Power Stacks fulfil international standards and are recognized according to UL.

SEMIKUBE® SlimLine IGBT Stacks

Extending the SEMIKUBE portfolio, the SEMIKUBE SlimLine platform is a family of pre-qualified power assemblies. The platform integrates advanced technologies, which maximize performance and power density. The SEMIKUBE SlimLine platform is designed to fit applications in severe environments.

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Following the solar trend to increase DC voltage, SEMIKUBE extends its range with a 1300A, 2-level inverter, able to operate up to 1500VDC. Using state-of-the-art IntelliOff driving technology, the inverter provides safe operation under all conditions. The high robustness of the CAL diode against cosmic rays gives a very low failure rate.

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While retaining core benefits from SEMIKUBE platform, SEMIKUBE MLI pushes the limit in term of power as well as voltage range, reaching 1500VDC, providing all safety features for a safe MLI conversion, great for high power energy storage and solar applications. 

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Air-Cooled IGBT Stacks Short Facts

  • Off-the-shelf product range
  • Air-cooled power assemblies
  • Maximum output current from 150A to 1500A
  • Customizable

Air-Cooled IGBT Stacks Key Features

  • Frame sizes ranging from 75kVA up to 1.5MVA
  • AC output voltage of up to 1000VAC
  • Current measurement tolerance <2%
  • Analogue measurements or CAN monitoring for Theatsink, VDC, Iout 
  • Forced-air cooled platform
  • For 300mm cabinet
  • UL1741 and 1500VDC ready

Air-Cooled IGBT Stacks Applications

The SEMIKUBE platform is optimised for general-purpose inverters used in high power energy storage and solar applications. Designed for the most commonly used PV central inverter ratings on the market, up to as much as 1.5MVA, the SEMIKUBE 3-phase inverter operates up to 1500VDC. Designed in accordance with IEC 62109, the platform is set to obtain UL recognition. The SEMIKUBE family complies with most AC drives application requirements. The current measurement tolerance of 2% (at 25°C) allows for premium motor control as required in highly dynamic applications and motion control systems.

Air-Cooled IGBT Stacks Product Range

The SEMIKUBE platform comes in four frame sizes for continuous rated currents ranging from 150A to 1500A and features SEMITRANS 1200V and 1700V IGBT E4 power modules. The SEMIKUBE design is optimised for 2- and 3-level, 3-phase inverter topologies. A dedicated rectifier with 3-phase inverter and optional brake chopper may be added. An embedded driver switches the IGBTs and provides error management and analogue outputs for current, DC voltage and heatsink temperature. For the SEMIKUBE SlimLine and SEMIKUBE MLI, a CAN interface is available for parameter configuration and diagnostics monitoring. Air-cooling is provided by highly efficient long-life axial and radial fans, achieving maximum power within a compact package. The SEMIKUBE is a versatile product, allowing for converter designs around a common DC link, including four quadrant converters, multiphase converters and 2-level or 3-level 1500VDC inverters for central solar power systems. Thanks to its optimised layout, the SEMIKUBE Slimline integrates state-of-the-art hybrid SiC and full SiC devices.


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