Safety for wind turbines.
enhance is the first battery solution to be integrated directly into the DC link of the frequency inverter - without a separate power converter and without compromises.
- Proven in use
- Certified (CE, UN 38.3)
- Up to 4,000 m operating altitude
- 12-year service life
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Why standard UPS fail in the nacelle.
Energy storage systems in wind turbines are required by law in many markets - and are also essential for operation. However, commercially available AC UPS solutions are unsuitable for these requirements: They are too large for the nacelle, too slow for the dynamic requirements of the DC link and cannot feed back braking energy.
enhance solves this problem in a fundamentally different way. The system is integrated directly into the DC link of the frequency inverter and overcomes all the limitations of conventional solutions.
| Eigenschaft | AC-USV (Standard) | enhance |
|---|---|---|
| Bauvolumen | Zu groß für die Gondel | Kompakt, Gondel-gerecht |
| Reaktionszeit | Zu langsam | Sofortig, ohne Schaltvorgänge |
| Energierückspeisung | Nicht möglich | Bremsenergie nutzbar |
| EMV | Störanfällig | Vollständig qualifiziert |
| Umwandlungsstufen | Mehrfach (AC→DC→AC→DC) | Direkt am DC-Link |
| Netzrückwirkungen | Vorhanden | Keine |
Use Cases - All regulatory and operational requirements. In one system.
#1 Fault Ride Through (FRT)
Required by law - EU 2016/631
Wind turbines must bridge grid voltage dips and then continue to feed into the grid without interruption. enhance provides the energy required for this directly in the DC link. National requirements that go beyond the EU minimum requirements are also covered.
#2 Black Start / self-supply
Reliability
After a total failure, the system restarts automatically - without dependence on an external network. Full operational capability under its own power.
Grid forming - stand-alone operation
Efficiency & protection
enhance stabilizes the DC link in stand-alone operation, prevents mechanical standstill damage and keeps the turbine continuously aligned with the wind.
Active azimuth control (Yaw)
Required by law - regional
In strong wind regions, active yaw control is required by law in the event of a power failure. enhance keeps the yaw axis permanently active and reliably reduces mechanical loads.
Direct DC link integration. No external converter.
The Siemens Double Motor Module (DMM) acts as a DC/DC converter (DCDCCONV technology extension) to adapt the voltage between the battery and the DC link. There is no need for a separate external power converter.
The result: fewer components, fewer losses, less installation space.
Advantages of DC-Link integration:
- Fewer conversion stages, higher efficiency
- No separate DC/DC converter required
- Braking energy recovery possible
- Immediate response without switching operations
- No network perturbations / power quality disturbances
- Smaller construction volume, less waste heat
- Less grid connection power required
Communication:
enhance can be integrated into all three control levels. Communication takes place via PROFINET, Modbus, CAN or TCP/IP (Ethernet).
The first battery management system that is qualified for the Siemens S120.
Operating a battery system in the DC link of a frequency inverter places extraordinary demands. Standard BMSs are not designed for this. The ebs battery management system was developed from the ground up for this environment.
Core features of the ebs BMS:
- DC link control: Specially developed voltage control algorithm, damping of DC oscillations, integrated pre-charging
- EMC qualification: Fully qualified according to inverter standards - PWM frequencies 2-16 kHz, massive current ramps (di/dt), current and voltage ripple
- Insulation: 6 kV - designed for harsh DC link operation
- Operating altitude: Qualified up to 4,000 m above sea level.
- Power Priority Mux: Automatic switchover between external 24 VDC supply and internal HV battery in the event of a mains failure - no manual intervention required, all protective functions remain active
Two variants. One platform.
enhance is available in two versions - scalable for different turbines and power classes.
enhance M
Compact single device for direct installation in the nacelle.
| Parameter | Wert |
|---|---|
| Nennenergie | 9,2 kWh |
| Nennspannung | 510–690 V |
| Nennkapazität | 15 Ah |
| Max. Entladestrom | 20 A |
| Abmessungen | 600 × 400 × 533 mm |
| Gewicht | 83 kg |
| Schutzart | IP 30 |
| Isolierung | 6 kV |
| Betriebshöhe | bis 4.000 m ü.M. |
| Zertifizierung | CE, UN 38.3 |
enhance L
Modular system for higher energy requirements - scalable from 32 to 64 kWh.
| Parameter | 4 Module | 6 Module | 8 Module |
|---|---|---|---|
| Nennspannung | 307 V | 461 V | 614 V |
| Nennenergie | 32 kWh | 48 kWh | 64 kWh |
| Max. Entladestrom | 100 A (kont.) / 200 A Peak (10 s) | ||
| Abmessungen pro Modul | 775 × 357 × 162 mm | ||
| Gewicht pro Modul | 63 kg | ||
| Schutzart | IP 30 | ||
| Isolierung | 6 kV | ||
| Betriebshöhe | bis 4.000 m ü.M. | ||
| Zertifizierung | CE, UN 38.3 | ||
Developed for the extreme conditions of the gondola.
enhance is developed and qualified for use under extreme industrial conditions - temperature, vibration, altitude, EMC
| Parameter | Wert |
|---|---|
| Betriebstemperatur | −20 °C bis +60 °C* |
| Transport-Vibration | 2M5 (EN IEC 60721-3-2) |
| Betriebs-Vibration | 3M12 (EN IEC 60721-3-3) |
| Betriebshöhe | bis 4.000 m ü.M. |
| EMV – Spannungsripple BAT+/− | 1 V @ 4 kHz |
| EMV – Spannungsripple BAT+/GND | 400 V @ 4 kHz |
| EMV – Spannungsflanke BAT+/GND | 10 kV/μs |
| EMV – Stromripple | 2 A |
| EMV – Magnetfelder | 10 A/m @ 50 Hz |
| Batterie-Lebensdauer | 12 Jahre oder 2.000 Zyklen |
| Routinewartung | Keine |
| Austausch | Auf Modulebene |
*with air conditioning of the battery modules
6 reasons to enhance.
Modular
design
Scalable and easily adaptable to different turbines and performance classes. Can be retrofitted to existing systems.
12 years
Service life
Up to 2,000 cycles, no routine maintenance, replacement at module level. Minimal service effort over the entire operating period.
Highly efficient
Direct DC link integration and braking energy utilization minimize losses considerably compared to AC UPS solutions.
Low
operating costs
Low OpEx over the entire life cycle. No service contract required.
Safe LiFePO4 technology
No thermal runaway, low fire protection requirements, low initial costs compared to other cell chemistries.
Compact
design
Suitable for standard control cabinets - no conversions or special housings required.
Further applications: The DC-Link principle. Universally applicable.
enhance is not limited to wind turbines. The DC-Link principle can be applied to all frequency inverter applications.
Industrial machinery & production
Pumps, extruders, printing and paper machines, test bench drives → Orderly shutdown, product and machine protection, power recycling
Transportation & Mobility
Passenger transportation, hybrid drives, special vehicles → Emergency drives, noise-reduced operation, buffering peak loads
Intralogistics & material handling
Hoists, cranes, conveyor systems → Emergency lowering, safety brake, controlled emergency stop
Energy & Infrastructure
Micro grids, industrial energy systems → Grid stabilization, intelligent load management
Ready for the next step?
enhance is ready for use today - for new projects and retrofit installations.
Contact person
Alexander Müller
CTO
service@ebs-group.io
Alexander Baumann
Head of Project Management
service@ebs-group.io