50kW~500KW PV Grid-Connected Inverter
1. Professional design
(1) Modular design
facilitate test, installation and maintenance
Adopt low leakage inductance and multi-layer busbar
Use metal film capacitor with long life span
Use integrated electric current transducer and temperature detection unit
Possess reliable interface driven by optical signal
(2) Grid-friendly design
Use negative-sequence unbalance control algorithm, possess LVRT capacity
meeting technical norms proposed by SGCC
Adopt power limitation control strategy and have function to modulate active and
reactive power, which meet requirements on PV station’s power dispatch
Have function of overvoltage operation, applicable to PV stations with severe grid voltage fluctuation
Support pure reactive power operation to raise power factor of PV station at night
Support communication protocol IEC61850 to meet requirements on smart grid
communication
(3) High-altitudes design
Inverted U-shape air duct make it suitable for heavy sand environment
Equipped heaters and low-temperature-resistant components make it suitable for
low temperature environment
Independent duct and design of ample amount of thermal power make it able to
cope with heat dissipation declination at high attitudes
Clearance of insulation and design of ample creepage distance margin make it
able to cope with insulation declination at high altitudes
(4) Safety design
V5 level flame-retardant wire
SPD protection
Professional EMC
Wide range of input voltage and output voltage
conformal coating cabinet
2. Functions and Characteristics:
dual DSP are beneficial for powerful and fast processing;
Superior protection functions: over/under voltage protection, over/under frequency
protection, over current protection, over load protection, anti-reverse-discharging
protection and anti-islanding protection;
Continuous modulation on active power and reactive power;
Being able to monitor square matrix insulation resistance;
Low Voltage Ride Through (LVRT);
Maximum Power Point Tracking (MPPT);
Wide range of DC input voltage;
Adopt RS485 or Ethernet as communication interface; support communication
protocol IEC 61850;
Adaptable at high altitudes no higher than 6000m (derated above 3000m);
Adaptable in harsh environment of -25℃,with optional auxiliary heater;
Modular structure: except the dominant power module, drive and control hardware
also adopt modular design which facilitates convenient installation and maintenance;
Metal film capacitor prolongs life span of the system to 30 years;
Max. transfer efficiency (with transformer) is up to 96.3%, compared with Euro.
transfer efficiency 95.3%.
3. Quality Assurance
Quality culture: Zero Defect
Integrated management system: Quality, Environment and OHSMS
Quality management concept: ensure reliable and perfect products with advanced
automatic test devices
Certificate for GBL200-500/270-HE:
CGC-SOLAR
ISO 9001
TUV
CE For more details, please contact us.
