TWERD Power Electronics PS100-WT - Hybrid Inverter with AC (PMSG) and DC (PV) Inputs

Chapter 5. ON-GRID installation
5.3. Hybrid inverter with AC (PMSG) and DC (PV) inputs
PV
REZYST.
GENER.
ps100-04.4-en
PS100-H
R
TWERD
L
NPE
Dump load
resistors
Protection
Connection point
to the electricity grid
L,N: 230V 50Hz
Emergency
Stop
Wind turbine
with a
synchronous
generator
Fig. 5.3. Power circuits wiring diagram for PS100-H inverter
When connecting photovoltaic panels and a synchronous generator to a hybrid inverter follow the order of
steps below:
1. Short the generator windings through an external emergency stop.
2. Set the PV switch to OFF.
3. Remove the 4 screws securing the inverter cover.
4. Connect the generator cables to the terminals described GENERATOR.
5. Connect the leads of the generator braking resistors to the terminals described RESISTORS in
emergency situations.
6. Connect the electric network cables (voltage free) to the L, N, PE terminals.
7. Switch on the inverter power supply from the mains side.
8. Set the system parameters: load characteristics in group 3, braking parameters in group 10 and specify
the generator's starting and stopping load in parameters: 2.1, 1.20 and 1.21. A detailed description of
the inverter operation can be found in chapter 8.
9. Screw in the inverter cover.
10. Measure the voltage of solar panels and their polarization.
11. Connect the solar panels to the dedicated PV connectors.
12. Turn off the emergency stop on the generator.
13. Set the PV switch to ON.
14. Wait two minutes to check if the device is detecting a failure.
26 PS100 – User manual