Grid connection point in a solar park

Feed-in management Connecting decentral power generation plants to the grid

The innovative solutions from Phoenix Contact help you to connect decentral power generation plants flexibly in accordance with the local requirements of the grid operator.

Grid connection point in a solar park

The parameters at the grid connection point are recorded by measuring devices and transmitted to a central feed-in controller

Application

Decentral power generation systems need to play their part in ensuring high grid stability. The grid operators responsible specify the ranges to be maintained for grid frequency and voltage and for reactive power in their grid connection conditions for photovoltaic systems. To check these values, regulators for power generation systems (PGP) record the present voltage and reactive power at grid connection points. The respective control values for the inverters are determined based on these values.

The solution consisting of hardware and software from Phoenix Contact ensures that the engineering effort with respect to feed-in control is kept to a minimum. Along with the connection to the feed-in management system of the grid operator, individual reactive power control poses a great challenge. The grid parameters at the grid connection point are recorded by measuring devices and transmitted to a central Power Control Unit. Then, the actuating values calculated from the reactive power controller are transmitted to the inverter installed in the system.

Solution

Control cabinet solution for feed-in control

Switchgear and controlgear assembly for feed-in control

Control cabinet solution for feed-in control

The connection of interfaces to the power provider and direct marketing company as well as the integration of external devices such as inverters can be adapted to the specific application by our Solution Partner. The user implements this on a project-specific basis. With our ready-to-install control cabinet solution for feed-in control, we have already combined all the necessary components such as the controller, network technology, and power supply in the same housing. This comprehensive solution also allows you to feed electricity from your decentral power generation plant into the power grid in accordance with VDE-AR-N 4110/20.

Controller for feed-in control

Controller for feed-in control

Certification

Any power generation systems, whether combined heat and power plants, wind power, or photovoltaic systems that feed into the German medium- or high-voltage grid must be equipped with a certified control unit – the Power Control Unit or PCU. While a manufacturer‘s declaration was sufficient in the past, a certificate issued by a DIN EN ISO/IEC 17065-accredited certification authority is now required.

Our PCU is certified in accordance with VDE-AR-N 4110/20 in Germany. It therefore implements the active power and reactive power requirements as well as monitoring the voltage conditions at the grid connection point.

Interactive Image Map: Feed-in management topology
Feed-in controllers
Our Power Control Unit flexibly connects decentral power generation plants in accordance with the local requirements of the grid operator.
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Feed-in controllers
Energy measuring devices
Our coordinated measuring devices save a great deal of effort when it comes to energy data acquisition.
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Energy measuring devices
String combiner boxes
Our photovoltaic string current monitoring system allows you to respond immediately to malfunctions and power losses, even when individual strings fail.
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String combiner boxes

Your advantages

  • Compliant with the connection directive thanks to certification of our Power Control Unit in accordance with VDE-AR-N 4110/20
  • Reliable system operation and straightforward grid connection through compliance with all technical connection requirements
  • Intelligent automation solutions ensure low engineering and operating costs
  • The programmed software allows you to commission your power generation system quickly
  • Open interfaces allow for customer-specific extensions
Energy measuring devices and energy meters – overview

An energy measuring device records important parameters in a power generation plant

Energy monitoring

With the network-capable energy measuring devices, you can monitor characteristic electrical data both centrally and on site. You can therefore gather all relevant characteristic data for your photovoltaic system using a small-scale controller and log it in an SQL database.

The energy measuring devices from Phoenix Contact provide you with the right solution for the optimal network integration of your power generation plant.

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Our Energy Solution Partners

Phoenix Contact works with selected partners from all over the world who have extensive expertise in our products and systems. This ensures that our solutions for the solar industry are optimally adapted to meet individual customer requirements worldwide.

Benefit from our expert Solution Partners and gain comprehensive advice now.

Integrated PV park management topology
Feed-in management
Our innovative solutions help you to connect decentral power generation plants in accordance with the local requirements of the grid operator.
Learn more
Feed-in management
Acquisition of meteorological data
Our weather station keeps you informed at all times about the efficiency of your photovoltaic system.
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Acquisition of meteorological data
Data loggers
Our data loggers record all relevant data in your PV park.
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Data loggers
Inverter communication
Phoenix Contact provides software libraries specifically for photovoltaic systems, which are constantly being expanded with functions.
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Inverter communication
String combiner boxes
Our photovoltaic string current monitoring system allows you to respond immediately to malfunctions and power losses, even when individual strings fail.
Learn more
String combiner boxes