SolarFuture

Advanced simulation and grid compliance for large-scale solar project

This project was initiated at the request of SolarFuture, an innovative player in the renewable energy sector, with the goal of developing a solar power plant for a heating plant in Denmark. The heating plant expressed a desire to integrate more solar energy into their existing energy system to complement their air-to-water heat pump. The aim was to reduce their dependency on and the costs of purchasing electricity from the public grid. The project represents a step forward towards a more sustainable and economically viable energy supply. 

Challenges

SolarFuture faced a significant challenge, as their technical capacity and capability to conduct the compliance simulations required for the project’s success were limited. This lack of internal resources to handle the specialized tasks made it difficult for them to carry out the project on their own. 

Solution

To address this challenge, our team stepped in with the necessary expertise and competencies to bring the project across the finish line. We developed the solar park in category C with compliance defined in the “Guidelines for grid connection of production facilities to the medium and high voltage grid (> 1 kV).” By using DIgSilent – Power Factory, a leading software in energy simulation, we designed a model that could simulate and evaluate whether the solar park met all the necessary requirements, based on the data and information we had received. 

 

We collected and analyzed the marked data for the individual components of the solar park, including technical specifications and parameters for cables, inverters, transformers, and Power Plant controllers (PPC). In addition, a Single Line Diagram (SLD) of the solar park’s structure as well as detailed information on the system’s topology were prepared. Further data on the Point of Connection (PoC) were also provided and used to calculate impedances, which were then integrated into an AC source to simulate the grid connection point. 

 

Through a series of simulation tests, we evaluated the facility’s capacities under various scenarios, including voltage and frequency changes, to observe the facility’s response. Load flow analyses were also performed to see the inverters’ active and reactive power as well as voltage in worst-case scenarios, ensuring compliance with all relevant requirements. 

Benefits

Our efforts led to significant results: 

 

  • We ensured that the solar park successfully met all grid requirements, demonstrating the project’s viability and efficiency. 
  • The simulation process was streamlined, which made the work processes more efficient for subsequent phases of the project. 
  • We helped to build capacity within our team by training new engineers to perform similar tasks, thereby strengthening our internal competencies and preparing us for future projects. 

 

This project illustrates our commitment to delivering high-quality solutions in renewable energy and our ability to meet our customers’ needs through technical expertise and innovative approaches. 

How we collaborate

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“We had the pleasure of working with DIS/CREADIS on a large PV system in Denmark. We chose DIS/CREADIS for their experience with Requirements for Generators (RfG) for large PV systems and their capability to create the necessary simulations in Power Factory for the grid operator. DIS/CREADIS was very cooperative and quickly addressed any questions from the grid operator. Together with DIS/CREADIS, we successfully obtained the Initial Operation Notification (ION) and Final Operation Notification (FON) on time.” 

 

– Mads Christensen, CEO at SolarFuture 

How we collaborate

<<

“We had the pleasure of working with DIS/CREADIS on a large PV system in Denmark. We chose DIS/CREADIS for their experience with Requirements for Generators (RfG) for large PV systems and their capability to create the necessary simulations in Power Factory for the grid operator. DIS/CREADIS was very cooperative and quickly addressed any questions from the grid operator. Together with DIS/CREADIS, we successfully obtained the Initial Operation Notification (ION) and Final Operation Notification (FON) on time.” 

 

– Mads Christensen, CEO at SolarFuture 

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