Description
DEIF PBC-2
Pitch Battery Charger
Built specifically for wind turbine pitch control systems, the PBC-2 is a high-efficiency switch-mode charger designed to maintain pitch battery banks and supercapacitor packs. In emergency conditions, fully charged energy storage units guarantee reliable blade feathering, which directly safeguards wind turbine hardware against overload and storm risks. Adopting optimized charging curves and passive convection cooling, this unit delivers stable output with low ripple, fitting continuous operation inside nacelle cabinets with large temperature fluctuations.
Key Functional Highlights
• Intelligent multi-stage charging logic supports float charging and temperature-based voltage adjustment, extending the service life of lead-acid, AGM and gel batteries
• Fanless natural convection design eliminates wearable moving parts, lowering maintenance demands for remote wind farm sites
• Integrated battery monitoring channels track voltage, charging current and temperature; external alarm contact outputs notify control systems of abnormalities
• Automatic recovery mechanism restarts operation after brief input power loss, avoiding system shutdown caused by transient grid fluctuation
• Comprehensive onboard protection includes overvoltage, overcurrent, short-circuit and thermal derating to shield batteries and internal circuits
• Compact steel housing with conformal coated PCBs provides resistance against humidity, dust and vibration typical inside turbine nacelles
• Clear LED status indicators visualize charging status, standby mode and fault conditions for quick on-site inspection
PBC-2
Technical Data
| Specification | Details |
|---|---|
| Model | PBC-2 |
| Manufacturer | DEIF |
| Product Category | Pitch Battery Charger |
| Input Rating | 230 V AC, 40–70 Hz |
| DC Output Range | 312–349 V DC |
| Rated Output Current | 1.8 A / 2.0 A (variant dependent) |
| Cooling Method | Natural convection, fanless |
| Operating Temperature | -25 °C ~ +65 °C |
| Storage Temperature | -40 °C ~ +85 °C |
| Relative Humidity | 5% – 95% RH, non-condensing |
| Monitoring Ports | Battery voltage detection, temperature sensor interface, alarm relay output |
| Mounting | Wall mounting inside control cabinet |
| Main Protection | OVP, OCP, short-circuit protection, thermal power derating |
Installation & Commissioning Notes
Typical Application Scope
Onshore & Offshore Wind Turbines
Primary charging equipment for pitch system backup batteries. Ensures sufficient energy reserve to drive pitch actuators for emergency blade safety positioning.
Wind Farm Retrofit Projects
Direct hardware replacement for outdated pitch chargers of existing wind turbines; compatible with mainstream pitch control architectures.
Remote Distributed Wind Assets
Suits unattended wind farms with limited on-site maintenance resources, thanks to maintenance-free fanless construction.
Energy Storage Auxiliary Charging Systems
Applicable for charging high-voltage supercapacitor modules used in emergency actuation systems for industrial rotating machinery.
