Power Electronics for
Wind Turbines

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Power Electronics for Wind Turbines

SEMIKRON’s portfolio includes a wide range of products for wind energy applications, from small to medium power modules for pitch and yaw drives to high power components for multi-megawatt power converters. From individual modules including dedicated drivers to high power SKiiP 4 IPMs and ready-to-use power electronic stacks – SEMIKRON has the solution.

The demand for reliable spare parts to ensure continuous energy harvesting until the end of the turbine life is becoming increasingly important. SEMIKRON has a broad portfolio of products to ensure reliable operation and maintenance for wind turbine converters.

SEMIKRON products offer maximum reliability for on and offshore wind turbines both in industry standard packages and in high power SKiiP 4 IPMs and power electronic stacks.

Performance Range

Operation & Maintenance

Wind Turbine O&M


Today, more then 350,000 wind turbines are in operation in the field world-wide. The demand for reliable spare parts to ensure continuous energy harvesting until the end of the turbine life is becoming increasingly important. SEMIKRON has a broad portfolio of products to ensure reliable operation and maintenance for wind turbine converters. From individual power modules, IPMs and drivers to dedicated, customized retrofit stacks – SEMIKRON has the right solution!


SEMIKRON offers a broad portfolio with industry standard power modules such as the SEMITRANS and SEMiX family. It includes SKiiP IPMs with customized coolers to fit into your wind turbine converter. The range is rounded off with highly reliable stacks based on solder-free SKiM 93 modules featuring sintered chips. This technology allows for optmimized thermal conductivity from chip to heatsink and runs the chip at about 20°C lower than the OEM stack. SEMIKRON also offers newly designed driver boards based on the latest SEMIKRON ASIC technology with digital signal transmission and additional protection functions.

Key Features

  • Broad portfolio of industry standard modules
  • SEMIKRON advanced power modules for maximum reliability and efficiency
  • Customized stacks for dedicated wind turbine converters
  • Customized heatsinks for IPMs (SKiiP) for integration into converters
  • Drivers and adapter boards with highly reliable SEMIKRON ASIC technology

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Operation and Maintenance – Power Electronics for Wind Turbines

New Benchmark Generation 7 IGBT

Pushing Performance in 3-Level Topologies


Whenever power quality and efficiency are driving factors in power electronics applications, 3-level topologies are the key. This is especially true for renewable energy applications where the combination with the latest Generation 7 IGBTs sets new benchmarks.

SEMITRANS 10 MLI enables wind turbine converters to reach voltage ranges up to 1000VAC (1500VDC) in 3-level NPC topology and increases converter efficiency.

Key Features

  • Reduced system cost thanks to 3-level topology
  • Up to 1.5MW without paralleling
  • Lower switching losses thanks to 1200V IGBT
  • Generation 7 IGBTs
  • Lower THD means lower filter requirements
  • Reduced cable diameters or cable losses
  • Reduced cooling requirements

More about IGBT Generation 7

3-Level Modules for Multimegawatt Converters – Power Electronics for Wind Turbines

IGBT Modules

Product Portfolio



Exceeding the standard for superior performance



Scalable without compromise


SEMiX® 6 Press-Fit

The complete press-fit standard


SEMiX® 3 Press-Fit

For solder-free mounting with press-fit contacts



Robust high power module



The new standard in high power


Intelligent Power Modules – IPMs

For Maximum Reliability


The SKiiP IPM product line sets a benchmark for high performance and robust inverter designs. Both SKiiP 3 and SKiiP 4 feature high power densities combined with flexible cooling options such as air- or water-cooling, also with customized heatsinks. Reliable driver technology, integrated current sensors and comprehensive protection functions complete the IPM design.

SKiiP 3 has propagated widely through the industrial drive segment. With its sixpack or half-bridge topologies, it covers a current range from 500A up to 2400A. 

The SKiiP 4, available in half-bridge topology, has been optimized for highest power cycling requirements and covers the higher power range up to 3600A.

To ensure highest reliability and service life, the power circuitry is 100% solder-free. Sinter technology as die attach replaces the solder layer, which usually causes the limitation in lifetime. Hence, sintering improves power and thermal cycling capability.

The integrated gate driver in the SKiiP 4 has set new standards in terms of reliability and enhanced functionality through its CAN interface. The digital driver guarantees safe isolation between the primary and secondary side for both switching signals and parameter measurement. The CAN interface allows setting the SKiiP 4 configuration parameter and reading application parameter.

High performance cooling technology will be gradually introduced providing approximately 20% more output capability compared to standard water cooling.

Key Features

  • 1200V and 1700V
  • Half-bridge and sixpack
  • 500A to 3600A
  • Flexible cooling options: air, water or customized cooling options, high performance cooling
  • Paralleled operation for even higher output power possible
More about SkiiP

Power Electronic Stack Platforms

Fully Qualified Inverter Assemblies Tailored to Your Specific Needs

Standard stacks

SEMIKRON’s Power Electronic Stacks enable our customers to succeed in dynamic markets and meet any global challenge. We deliver IGBT- and SiC-based stacks for AC voltages from 380V to 1000V. Our standard stacks cover a output current range from 70A to 1000A. Our new SEMIKUBE MLI brings all benefits of 3-level topologies in an off-the-shelf product. It includes all safety and sensing measures for your fast time-to-market.

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Customised stacks

In addition to standard stacks, SEMIKRON has vast experience in developing customer-specific solutions. Engineers are available in our stack centres around the globe to offer specific solutions by adapting existing platforms or designing customized converters.

Four Key Factors for your success

  • Shortest time to market
  • Cost savings in R&D, production and qualification
  • Global SEMIKRON stack production footprint
  • Highly experienced engineering team
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IGBT Driver

Product Portfolio IGBT Driver

Above the Standard

SEMIKRON’s unique product portfolio enables access to all established industries with a one-stop solution that combines state- of-the-art power modules and driver electronics.

SEMIKRON’s IGBT drivers are available as two- channel driver cores suitable for any standard semiconductor power module or as Plug-and-Play solutions, which perfectly fit the SEMiX 3 Press- Fit, SEMITRANS 10 and compatible modules.


Achieve outstanding system compactness and create space-and cost-effective inverter designs with SEMIKRON’s drivers, utilizing highly integrated ASIC technology. Isolated DC-link voltage and temperature sensor signals at the driver’s interface along with over-voltage and over-temperature lockout also help to reduce system costs significantly.


More than 25 years of experience in developing innovative IGBT driver electronics enables SEMIKRON to have a short-term solution for almost every challenge related to driver electronics. SEMIKRON’s Plug-and-Play drivers connect directly to most common standard IGBT modules. The IGBT driver cores fit with SEMIKRON’s adapter boards or application sample PCBs. For the latter, SEMIKRON shares the entire manufacturing data to decrease development time, speeding up the time-to-market.


SEMIKRON’s SKYPER and SKHI IGBT drivers are well known, highly robust and reliable IGBT driver solutions under demanding environmental conditions. Over many years of field operation experience the proprietary IGBT driver technology has been relentlessly developed further. This technology sets new standards for the essential features of safe gate control, reliable gate protection and reinforced insulation.

Key Factors

  • Reinforced insulation for signal and power transmission
  • Two-channel driver
  • Up to 1700V transients
  • Up to 1500V continuous DC bus voltage
  • 8Apk to 35Apk per channel
  • 1W to 4.2W peak per channel
  • Suitable for multi-level topologies and Generation 7 IGBT







Thermal Interface Materials

Stay Cool – Heat Dissipation is Our Job


SEMIKRON was the first power module manufacturer on the market to offer power modules with pre-applied thermal interface material. With more than two decades of field experience and more than 15 million pre-printed modules in the field, benchmarks are being set. The modules with pre-applied TIM are printed in a clean environment on an automated and SPC controlled silk screen and stencil printing line.

For each requirement SEMIKRON offers the right choice of material. In addition to the standard silicone thermal grease, phase change materials and high performance thermal paste with improved thermal performance are also available.

SEMIKRON offers either thermal grease or phase change mate- rials depending on customer requirements (e.g. performance increase, reduced handling effort) and module type (with or without baseplate). Phase change materials have a solid consistency at room temperature, fully exploiting the advantages a non-smearing TIM layer offers, with no drawbacks. Baseplate- less modules, on the other hand, usually require a lower-viscosity material to help improve robustness during assembly. Here, thermal grease is the preferred solution.

Key Features

  • Increased productivity thanks to reduced handling costs and improved logistics
  • Low thermal resistance with optimised TIM layer thickness
  • Improved lifetime and reliability
  • Improved assembly robustness
  • Modules can be shipped directly to the assembly line without any additional treatment processes
  • Lower overall costs


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