Active power control using smart measuring systems

1

Energy supply company

2

Encryption

3

World Wide Web (Internet)

4

Smart meter gateway

5

Gateway

6

Digital power meter

7

Control box

8

Inverter

Smart measuring systems have a key role to play in the energy networks of the future.

In this context, a smart measuring system comprises a measuring device (smart meter or digital power meter), which records the measurement data, and a communication unit (the smart meter gateway), which transmits the data to the energy provider via a secure connection. A control box, connected to the inverter, can then be used by the energy supply company to control the inverter and thereby regulate the PV system's feed-in.

These smart measuring systems are already mandatory in some countries. Ask your energy supply company what applies to you.

Connecting the control box

DANGER

danger

Risk of death due to electrical shock and discharge!

  • De-energise device and secure against being switched on again.
  1. Disconnect the inverter's connection compartment from the power supply.
  2. Mount the control box on the top-hat rail in the control cabinet or power distributor.
  3. Lay the signal cable professionally from the inverter to the control cabinet and connect it to the control box according to the manufacturer's connection diagram (tightening torque: 0.2 Nm).
  4. Connect the signal cable in the inverter to the connection terminal for ripple control receivers Connecting ripple control receiver.
  5. Connect the control box to the smart meter gateway.
  1. The control box is now connected.

Enable active power control in the web server

The inverter must be connected to the local LAN network.

  1. Start an Internet browser on the computer.
  2. Access the web server of the inverter.
    To do this, enter the inverter IP address in the address bar of the Internet browser and confirm with ENTER. The IP address can be read on the inverter display.
  3. The web server page opens.
  4. Log in to the web server as an installer.
  5. Select the menu item Service > General > Digital inputs.
  6. The Digital Inputs page opens.
  7. Select a function.
    Active power control or power limitation in accordance with §14a EnGW
  8. If the control signals are to be distributed via UDP in the local LAN network (home network), activate the item Activate distribution of broadcast control signals. This allows other inverters in the local LAN network to be controlled as well.
  9. Click on the Save button.
  1. Active power control is now active.