his grid tie inverter is for wind turbine power generation.
The inverter input is 3 phase AC, not DC.
The inverter output is for 220V single phase grid OR 380V 50Hz/60Hz Three phase grid .
Before placing the order, please provide the seller the data of the generator (rated power, rated RPM, rated voltage, magnet pairs), thanks.
System Composition
The system mainly includes: wind turbine, lightning protector 1 in wind turbine side, electromagnetic brake system, AC filter in wind turbine side, rectifier boost voltage, dump load circuit, inverting bridge, AC filter in inverter side, common mode filter, AC breakers, lightning protector 2 in grid side, and single-phase 230V grid.
Hardware Function Introduction
Lightning protector: the lightning protection device at the input and output side of the machine.
Electromagnetic brake: the machine can start electromagnetic brake to brake the wind turbine when rotational speed is over, inverter output power is over, the temperature is over.
AC filter: The ripple and DC components in AC voltage are filtered out, and the AC voltage is transformed into a smooth, harmonic waveform which satisfying the requirements.
Rectifier boost circuit: Transform and boost the three-phase AC voltage generated by wind turbine to required DC voltage.
Dump load circuit: Redundant power is released by dump load by PWM control.
Inverting bridge: transform DC to AC
Common mode filter: suppress EMI interference in the circuit.
AC breakers: Cut off the connection between grid and inverting bridge during inverter fault or standby to avoid rectification flow backward
Features
Wind power Controller&Inverter integrated machine
Support wide range voltage input
MPPT included, and track point settable
Complete protection functions.
|
|
|
| Wind Turbine Input |
|
| Rated input power |
5kW |
| Rated input voltage |
220Vac |
| Manual brake |
Keep pressing the button for 5s to unload completely, and then recover by pressing it for another 5s. |
| Switch “ON” the brake switch |
|
| Brake by over wind speed（optional） |
18m/s (0~30m/s settable), it dumps load completely when reached the set wind speed, and recover automatically after working 10mins and wind speed is less than 15m/s. |
| Brake by over rotational Speed（optional） |
500r/min（factory default，0~1000r/min settable） Unload completely when reached the set rotational speed, and recover automatically after 10mins. |
| AC Output |
|
| Grid Type |
Single-phase |
| Rated output power |
5kW |
| Rated Grid voltage |
220Vac |
| Grid voltage range |
200~260Vac |
| Rated Grid frequency |
50Hz |
| Work frequency range |
49Hz~51Hz |
| Rated output current |
22A |
| Thdi |
＜5% (at rated power) |
| Protection Functions |
|
| AC output overvoltage/ undervoltage protection |
YES |
| AC output over frequency /underfrequency protection |
YES |
| AC short circuit protection |
YES |
| Surge protection |
YES |
| Anti-islanding protection |
YES |
| Over-temperature protection |
YES |
| Lightning protection |
YES |
| General Parameters |
|
| Display mode |
LED |
| Display information |
dump load, grid state, wind generator state, faults |
|
|
|
| Monitoring contents |
wind rotate speed, wind power, AC output voltage /current/power, and fault code |
| Efficiency |
＞93% |
| Ambient temperature |
-20℃～+40℃ |
| Humidity |
0%~90%, no condensing |
| Noise |
≤65dB |
| Cooling mode |
Forced air cooling |
| Cover protection class |
IP54 |
| Product dimension (W*H*D) |
370×545×185mm |
| Product net weight |
19kg |
| Dump load dimension(W*H*D) |
300×550×55mm |
| Dump load net weight |
14kg |
| Note: Part of parameters can be adjusted according to customer’s specific demand. |
|
|
|
|
| Wind Turbine Input |
|
| Rated input power |
5kW |
| Max. input power |
5.5kW |
| Rated input voltage |
380Vac |
| Manual brake |
Keep pressing the button for 5s to unload completely, and then recover by pressing it for another 5s. |
| Switch “ON” the brake switch |
|
| Brake by over wind speed（optional） |
18m/s (0~30m/s settable), it dumps load completely when reached the set wind speed, and recover automatically after working 10mins and wind speed is less than 15m/s. |
| Brake by over rotational Speed（optional） |
500r/min（factory default，0~1000r/min settable） Unload completely when reached the set rotational speed, and recover automatically after 10mins. |
| AC Output |
|
| Grid Type |
Three-phase |
| Rated output power |
5kW |
| Rated Grid voltage |
380Vac |
| Grid voltage range |
320~420Vac |
| Rated Grid frequency |
50Hz |
| Work frequency range |
49Hz~51Hz |
| Rated output current |
13A |
| Rated power factor |
＞0.98 |
| Thdi |
＜5% (at rated power) |
| Protection Functions |
|
| AC output overvoltage/ undervoltage protection |
YES |
| AC output over frequency /underfrequency protection |
YES |
| AC short circuit protection |
YES |
| Surge protection |
YES |
| Anti-islanding protection |
YES |
| Over-temperature protection |
YES |
| Lightning protection |
YES |
| General Parameters |
|
| Display mode |
LED |
| Display information |
dump load, grid state, wind generator state, faults |
| Monitoring mode(optional) |
RS485/GPRS |
| Monitoring contents |
wind rotate speed, wind power, AC output voltage /current/power, and fault code |
| Efficiency |
＞93% |
| Ambient temperature |
-20℃～+40℃ |
| Humidity |
0%~90%, no condensing |
| Noise |
≤65dB |
| Cooling mode |
Forced air cooling |
| Cover protection class |
IP54 |
| Product dimension (W*H*D) |
370×545×185mm |
| Product net weight |
19kg |
| Dump load dimension(W*H*D) |
300×550×55mm |
| Dump load net weight |
14kg |
| Note: Part of parameters can be adjusted according to customer’s specific demand. |
|
Electrical connection
Please connect those parts according to the order of ①②③④, and notice the following items.
- Connect two output lines of dump load to the unload terminals “R” “R” of the machine.
- Connect “L” “N” and earth wire of grid to the terminals “L” “N” and “” on the machine relatively.
- When wind turbine is still or running in a low speed, connects its output line to the “WIND INPUT” terminal on the machine.
- Connect communication device to the relative communication port if there is a communication device.
- Check all the connection to make sure they are connected rightly and tightly.
- Note：
- Please measure the voltage and frequency of the grid before connect the system to the grid.
- AC “L” “N” cannot be connected to the earth wire terminal, or the machine will be damaged permanently.
- The switch should be at “BRAKE” status while installation, and changed to “RUN” status when it works.
| Analysis |
Possible solutions |
|
| 1 |
Grid is not normally connected. Grid voltage or frequency is abnormal |
Check the details from the monitoring software. |
| 2 |
Inverting circuit soft over current protection |
Check the wiring connection on the AC side circuit after ensuring the machine is disconnected with any power supply. |
| 3 |
Bus overvoltage protection |
Please connect Win Power |
| 4 |
over temperature protection |
once the inverting module temperature recovers to normal, the machine will clear the fault itself. |
| 5 |
IPM protection for the inverting side |
Wait for 5mins, test after the fault is recovered automatically. If not, please contact Win Power. |
| 6 |
Rectifying circuit soft over current protection |
Wait for 5mins, test after the fault is recovered automatically. If not, please contact Win Power. |
| 7 |
IPM protection for rectifying side |
Wait for 5mins, test after the fault is recovered automatically. If not, please contact Win Power. |
| 8 |
Wind voltage is higher than bus voltage fault protection point. |
Wait for 5mins, test after the fault is recovered automatically. If not, please contact Win Power. |