New Energy
Aluminum Electrolytic Capacitor Solutions for PV Inverters, Wind Converters, and Energy Storage Systems
Summary: HUAYU's capacitors support new energy applications including energy storage systems (ESS), wind power converters, and EV charging infrastructure. High-voltage screw terminal series handle demanding DC-link requirements in renewable power conversion.
Application Scenarios
Photovoltaic Inverters
DC-link filtering and energy buffer in string and central PV inverters. Must withstand daily thermal cycling from −25°C to +85°C and deliver 10+ years field life.
Wind Power Converters
Grid-side and generator-side converter DC-link capacitors in doubly-fed and full-conversion wind turbines. High ripple current and vibration resistance required.
Energy Storage Systems
DC-link and filtering capacitors in battery energy storage system (BESS) power conversion systems. Continuous duty with frequent charge/discharge cycles.
Key Capacitor Requirements
Ultra-Long Life
10,000+ hours at 105°C, translating to 15+ years at 65°C operating temperature.
Thermal Cycling
Withstands wide temperature swings without electrolyte degradation or seal failure.
High Ripple Current
Handles high RMS ripple from switching at 10–50 kHz with low internal heating.
Vibration Resistance
Robust terminal and seal design for wind turbine and rooftop installations subject to mechanical vibration.
Recommended Series
HUAYU series best suited for new energy applications
| Series | Type | Key Features | Typical Application |
|---|---|---|---|
| CD298 | Snap-In | 10,000h life, large diameter, high ripple | PV string inverter DC-link, output filter |
| CD13HL | Screw Terminal | 105°C rated, 10,000h+ life | Wind converter DC-link, central inverter |
| CD13NH | Screw Terminal | High temperature, high reliability | Energy storage PCS, large-scale inverter |
| CD294 | Snap-In | Ultra-low ESR, extended life | Micro-inverter, small string inverter |