High-Power 1500V String Inverter for Utility-Scale PV Systems
The Higre 320kW Three-Phase String Inverter is designed for high-power utility-scale and large commercial solar PV systems, combining high-efficiency power conversion, flexible MPPT configuration, intelligent protection and advanced grid-support capabilities.
With a maximum PV input voltage of 1500V and a rated AC output power of 320kW, the inverter supports high-voltage PV architectures and flexible block configurations, helping reduce system BOS costs and simplify large-scale PV plant design.
The inverter features six independent MPPT channels with up to 75A maximum input current per MPPT, enabling compatibility with high-current PV modules and flexible string configurations.
With a maximum efficiency of 99.02%, IP66 protection, smart forced-air cooling and an operating temperature range of -30°C to +60°C, the inverter is designed for reliable operation across demanding outdoor environments.
Advanced grid-support functions, including LVRT, HVRT, active and reactive power control and power ramp-rate control, enable the inverter to support stable operation in utility-scale PV plants.
Product advantages
01
1500V High-Voltage Architecture
The 1500V DC input design supports high-voltage PV system architectures, enabling longer string configurations and helping reduce DC-side BOS components and overall system complexity.
02
High Power Density & 99.02% Efficiency
With 320kW rated output power and up to 99.02% maximum efficiency, the inverter is designed to maximize energy conversion while supporting high-power utility PV applications.
03
Flexible High-Current MPPT Design
Six independent MPPT channels support up to 75A input current per MPPT and up to five input connectors per MPPT, providing flexible compatibility with high-current PV modules and large PV arrays.
04
Intelligent Protection & Grid Support
Integrated string current monitoring, ground-fault monitoring, surge protection and multiple grid-support functions help improve system safety, grid adaptability and long-term plant operation.
Product Parameters
Parameter
Reference
Max. PV Voltage
1500 Vdc
Independent MPPTs
CUSTOMIZED
Mppt Efficiency
99.02%
Protection
IP66
Operating Temperature
-30°C to +60°C
Cooling
Intelligent Air Cooling
Communication
RS485 / USB / Bluetooth;4G/Wifi(选配）
Application Scenarios
FAQs：
What applications is the 320kW string inverter designed for?
The 320kW string inverter is designed primarily for utility-scale and large commercial solar PV projects. Its 1500V DC architecture, high-power output and multi-MPPT configuration make it suitable for large PV blocks and centralized solar plant designs.
How many MPPT channels does the 320kW inverter have?
The inverter features six independent MPPT channels. Each MPPT supports up to five input connectors, with a maximum input current of 75A per MPPT, providing flexibility for high-current PV modules and large PV arrays.
What is the maximum PV input voltage?
The maximum PV input voltage is 1500V DC, with an MPP voltage range of 500–1500V. The nominal PV input voltage is 1080V.
Does the inverter support weak-grid applications?
The inverter incorporates grid-support functions including LVRT, HVRT, active and reactive power control, power ramp-rate control, Q-U control and P-f control. These functions are designed to improve grid adaptability and support stable PV plant operation.
How does the inverter support outdoor operation and maintenance?
The inverter uses smart forced-air cooling and an IP66-rated enclosure, with an operating temperature range of -30°C to +60°C. Digital interfaces including RS485, PLC and Bluetooth/App communication support commissioning, monitoring and maintenance.
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