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 plants and battery storage systems make a key contribution to ensuring 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 control these, regulators for power generation plants (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.

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

Grid security with feed-in control Simple connection with a complete solution

The connections 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 users implement 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 allows you to feed electricity from your decentral power generation plant into the power grid.

Controller for feed-in control

Controller for feed-in control

Grid-compliant connection of your power generation plants 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. For Spain, our power control unit is certified in accordance with the Norma Técnica de Supervisión de la Conformidad de los Módulos de Generación de Electricidad. And for Poland, certification is in accordance with the ROZPORZĄDZENIE KOMISJI (UE) 2016/631 standard.

Person sitting in front of a screen showing the controller interface

Reduced programming effort for feed-in control

Interface programs enable significantly reduced programming effort

The solution from Phoenix Contact consisting of hardware and software ensures that the engineering effort with respect to feed-in control is kept to a minimum. The functional scope of the software is being extended constantly. Ready-to-use interface programs are available for the PLCnext Engineer programming environment. They enable the quick and easy integration of grid operators, direct marketers, energy measuring devices, inverters, portals, and weather sensors. After configuring the application in PLCnext Engineer, the interfaces must be configured in the eHMI.

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.
Find out more
Feed-in controllers
Energy measuring devices
Our coordinated measuring devices save a great deal of effort when it comes to energy data acquisition.
Find out more
Energy measuring devices
String combiner boxes
Our monitoring system for photovoltaic string currents allows you to respond immediately to malfunctions and power losses, even when individual strings fail.
Find out more
String combiner boxes
Telecontrol and control
The connection of geographically distributed, decentral substations to a central control room requires the use of modular and scalable remote control systems.
Find out more
Telecontrol and control

Your advantages

  • Accelerated commissioning of your photovoltaic systems at the grid connection point
  • Certification of our power control unit for Germany, Poland, and Spain
    Compliance with the European grid connection conditions in accordance with the Network Code on the Requirements for Generators (NC RfG) 
  • Reliable system operation and straightforward grid connection through compliance with all technical connection requirements
  • User-friendly with significantly reduced programming effort due to ready-to-use interface programs
  • Superior flexibility with system openness and scalability
Control cabinet of a secondary substation

Monitoring and control of secondary substations

Intelligent distribution grids Modular remote control technology for secondary substations

Monitoring parameters is a fundamental requirement for the efficient expansion and reliable operation of power grids. With our modular solutions for remote control technology, you can easily monitor and control your systems remotely and always have all information available at a glance.

Energy measuring devices and energy meters – overview

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

Energy monitoring Intelligent monitoring for your future energy management system

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.

A man and a woman talking about a product on a tablet

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.

Interactive image map: 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.
Find out more
Feed-in management
Acquisition of weather data
Our weather station keeps you informed at all times about the efficiency of your photovoltaic system.
Find out more
Acquisition of weather data
Data loggers
Our data loggers record all relevant data in your PV park.
Find out more
Data loggers
Inverter communication
Phoenix Contact provides software libraries specifically for photovoltaic systems, which are constantly being expanded with functions.
Find out more
Inverter communication
String combiner boxes
Our monitoring system for photovoltaic string currents allows you to respond immediately to malfunctions and power losses, even when individual strings fail.
Find out more
String combiner boxes