Pv grid-connected power system includes PV modules, grid-connected inverter, meter and power switch board. The PV modules convert the solar energy into the DC power. Then the grid-connected inverter converts the DC power into the sine wave AC power which has the same frequency and phase with the grid voltage. The AC power feed-in the grid partly and the other power supply the local loads.
Solar grid-connected inverter STGC-1000W/2000W/3000W/4000W/5000W (Single-phase)
1. Using the fifth generation lntelligent power module from mitsubishi , improve the system efficiency
2. High conversion efficiency
3. Advanced technology for maximum power point tracking (MPPT)
4.MPPT efficiency (>97%)
5.Wide input voltage range
6.Low frequency transformer isolation
7.High reliability due to perfect protection function
8.powerful communication interfaces
9.Easy operation and installation
10.Easy-to-set multilingual LCD display
11.Adjustable protection/operation parameters
DC input
Vpv 180-420VDC
Mppt voltage range
Vpv 180-420VDC
Rate voltage
40V-72V
Control system
MPPT
Output power
1000W/2000W/3000W/4000W/5000W/5500W
Output rate voltage
Grid-voltagle AC 220V
Normal grid frequency
50HZ / 60HZ
Power factor
95%
Current THD
At rated power and in the sine wave5%
Control system
MPPT
Anti-islanding
Less more sec
Output overload
100%
Max.efficiency
97%
Environment
Have no corrosion gas, flammable gas, oil mist, dust etc.
Stored temperature
-20C-60C
Operation temperature
50C
Relative Humldity
<90%
Protection (inverter)
Input overvoltage, output circuit ,over load, over heat, output DC component
Protection (grid)
Anti-islanding(ieee1547),over/under overvoltage of grid, over/under frequency of grid