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 control box

DANGER

danger

Risk of death due to electrical shock and discharge!

  • De-energise device and secure against being switched on again.
  1. De-energise the inverter's terminal compartment.
  2. Fit the control box on the top-hat rail in the control cabinet or power distributor.
  3. Correctly route the signal cable from the inverter to the control cabinet and connect it to the control box following the wiring diagram provided by the manufacturer (torque: 0.2 Nm).
  4. Connect the signal cable in the inverter to the terminal for the ripple control receiver. Connecting ripple control receiver
  5. Connect control box to the smart meter gateway.
  1. The control box is connected.

Activating active power control in the Webserver

The inverter must be connected to the local LAN network.

  1. Launch an Internet browser on the computer.
  2. Call up the inverter's Webserver.
    To do this, enter the IP address of the inverter in the address bar of the web browser and confirm with ENTER. The IP address can be read off from the inverter's display
  3. The Webserver page is opened.
  4. Log into the Webserver as an installer.
  5. Go to Service menu > Digital inputs.
  6. The "Digital inputs" page opens.
  7. Select a function.
    Active power control or power limitation in accordance with Section 14a of the German Energy Industry Act (EnWG)
  8. If the control signals are to be distributed in the local LAN network (home network) by means of UDP, select Enable broadcast control signal distribution. Other inverters can then also be controlled in the local LAN network.
  9. Click on the Save button.
  1. Active power control is enabled.