Wind Power Converter

Renewable Energy Application

Description

Complete power conversion solution for wind turbines with grid compliance, low voltage ride-through (LVRT), and reliable operation in harsh environments. Our wind power solution features Semikron high-power IGBT modules and gate drivers optimized for wind turbine converters. The solution supports turbine ratings from 1.5MW to 5MW with medium voltage output up to 690VAC.

Core Advantages

High Reliability (MTBF >100,000 hours)
Extended Temperature Range (-40°C to +85°C)
Grid Code Compliance (LVRT, Reactive Power)
Redundant Control Architecture Support Redundant Control Architecture Support
Predictive Maintenance Capabilities Predictive Maintenance Capabilities
Low Failure Rate (<1% per year)

Recommended Bill of Materials (BOM)

Item Part Number Description Quantity Datasheet
1 SKM400GB12T4 IGBT Module, 1200V, 400A, SEMiTRANS 4 6 📄 Download
2 SKYPER42R Gate Driver, 40A 6 📄 Download

Applications

Onshore Wind Turbine
Offshore Wind Turbine
Wind Farm
Hybrid Power System

Technical Specifications

generator Voltage
690VAC 3-phase
grid Voltage
690VAC 3-phase
rated Power
1.5-5MW
switching Frequency
2-4kHz
efficiency
>98%
power Factor
0.95 leading to 0.95 lagging
operating Temp
-40°C to +50°C
protection
Overcurrent, Overvoltage, DC link monitoring, Thermal protection

Customer Success Stories

Wind Turbine Manufacturer

Wind Power Generation | 2.5MW Onshore DFIG Converter

Challenge

Developed high-reliability 2.5MW DFIG wind turbine converter requiring compliance with Chinese grid LVRT requirements, MTBF >80,000 hours, adapting to -30°C to +50°C environment.

Solution

Adopted SKM400GB12T4 as core power device to build rotor-side and grid-side converters. Optimized control algorithms for fast LVRT response. Adopted forced air cooling + heat pipe cooling solution.

Results

Converter passed China Electric Power Research Institute LVRT certification, MTBF reached 100,000 hours. Successfully matched with over 500 turbines, cumulative operation exceeded 2 million hours, failure rate below 1%.

"Semikron IGBT's high reliability and LiTong's technical support are guarantees of our wind turbine success"

Offshore Wind Power Developer

Offshore Wind Power | 4MW Offshore Wind Turbine Full Power Converter

Challenge

Developed offshore wind turbine full power converter requiring protection level IP54, salt spray corrosion resistance, maintenance-free design life 25 years, meeting harsh offshore environment.

Solution

Adopted full power topology with SKM400GB12T4 for both machine-side and grid-side. System adopted sealed design with internal positive pressure ventilation. Key circuit boards coated with three-proof paint, connectors adopted gold-plating treatment.

Results

Converter passed DNV GL certification, protection level reached IP54, passed 3000-hour salt spray test. First prototype has been operating offshore for 2 years in good condition.

"Semikron modules' high reliability allows our offshore wind turbines to withstand harsh environment tests"

FAE Expert Insights

H

Hua Chen

Senior FAE - Wind Power

16+ years

Professional Insights

This solution provides excellent performance for target applications.

Key Takeaways

  • SKM400GB12T4 is the best choice for 2-5MW wind turbine converters
  • Silver sintering packaging technology significantly improves thermal cycling lifetime
  • DFIG topology suitable for onshore, full power topology suitable for offshore
  • LVRT function is a basic requirement for grid connection
  • Offshore wind power requires special attention to protection and anti-corrosion

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

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Frequently Asked Questions

Design keycan have ?

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Temperaturescope - ensure in-40 C +85 CEnvironmentTemperature normalwork, launch Drift

thermal cyclingLifetime - apply , want module >50000 thermal cycling, Semikron silver sintering technologycan want

protectionwait - achieveIP54 , key

Design - key such ascontrol , adopt Design, raisecan

- IGBTTemperature, DC Voltage, Currentwait , implement maintain. recommendcarry out AgingtestverifyDesignLifetime, MTBFgoal >100000 .

in Design can and Lifetime, selectthroughverify highcan .

such as implement Voltage (LVRT)function?

Voltage is and keyTechnologywant : detect - Voltage, Voltage 90% launchLVRT

Crowbar - in CrowbarResistance Power, protectDC CapacitanceandIGBT

Chopper - adopt Resistance energy, maintainDC Voltagestable

no - inVoltage duringprovideno Current restore, usuallywant provide100% Current no

restore - Voltagerestore 2 restorenormal , avoidfor cause

controlstrategy - adopt controlimplementhave /no control, during guaranteeno output. Semikron IGBTmodule high ability(2 CurrentDuration1min)have implementLVRTfunction. not standardwant not , such as GB/T 19963, BDEWwait.

according togoalMarketing standardDesignLVRTfunction, ensure in items stablerun.

and Power How to Select?

(DFIG)and Power select TypeandapplyScenario: - process Power(about30% Power), cost , maintain, control

Power - processallPower, no maintain, , supportSynchronization . Selectionrecommend: 1.5-3MW - cost-performance ratiohigh, suitable resourcestable

3-5MW - Power can high, maintaincost , suitable Environment

Synchronization - mustadopt Power

okay - can want

- Power ability . Semikron SKM400GB12T4suitable Power and , highCurrent have reduce Volume. Recommendeduse Power + Synchronization .

according to Powerwait , applyEnvironment( / )and items selectsuitable .