High-Voltage Gate Driver Solution for Photovoltaic Inverters & Energy Storage Systems
LiTong Group offers a robust and highly efficient high-voltage gate driver solution specifically designed for photovoltaic (PV) inverters and advanced energy storage systems. This solution leverages Power Integrations' industry-leading SCALE™ gate drivers to ensure reliable, safe, and optimized control of IGBTs and SiC MOSFETs in demanding renewable energy applications.
The transition to renewable energy sources requires power conversion systems that are not only highly efficient but also extremely reliable and capable of operating under harsh environmental conditions. Our solution addresses these challenges by providing superior gate drive performance, comprehensive protection features, and reinforced isolation, critical for the longevity and performance of PV inverters and battery energy storage systems (BESS).
Power Architecture Diagram
Figure 1: Simplified block diagram of the High-Voltage Gate Driver Solution for PV Inverters & Energy Storage Systems.
The architecture typically involves SCALE-iDriver or SCALE-iFlex gate drivers controlling the power switches (IGBTs/SiC MOSFETs) in the inverter stage, ensuring precise switching, robust protection, and reliable operation across the entire power range.
Key IC Advantages
- **Reinforced Isolation:** Critical for safety and reliability in high-voltage applications, meeting international standards.
- **Advanced Active Clamping:** Protects power switches from overvoltage transients, enhancing system robustness.
- **Short-Circuit Protection (DESAT):** Rapidly detects and safely shuts down power switches during short-circuit events.
- **High Common-Mode Transient Immunity (CMTI):** Ensures stable operation in noisy environments typical of power conversion.
- **Optimized Gate Drive:** Provides precise and powerful gate signals for efficient switching of IGBTs and SiC MOSFETs.
Recommended Bill of Materials (BOM List)
- **Gate Driver:** Power Integrations SID1181K (SCALE-iDriver) or 2SP0320T2C0-17 (SCALE-iFlex)
- **Power Switches:** [Example, e.g., Infineon IGBT modules, Wolfspeed SiC MOSFET modules]
- **DC-Link Capacitors:** [Specific type and rating]
- **Control Microcontroller:** [Example, e.g., TI C2000 series]
Note: The above BOM is illustrative. Actual component selection may vary based on specific power levels, voltage requirements, and system topology. Our FAE team can assist with detailed BOM optimization.
Application Scenarios
- String inverters and central inverters for solar PV systems
- Battery energy storage systems (BESS)
- Hybrid inverters
- Grid-tied and off-grid power conversion