KTH Uses OPAL-RT Simulators to Conduct Groundbreaking Research and Education

The Company

Royal Institute of Technology (KTH) is building SmarTS-Lab (Smart Transmission Systems Laboratory), a research and education platform based on OPAL-RT’s real-time simulation technology. The laboratory enables researchers and students to evaluate smart grid concepts, control strategies, protection systems, and communication technologies in a controlled, highly detailed, and reproducible environment.

The Challenges

• Multi-Disciplinary Smart Grid Research: KTH required a platform capable of supporting both research and education activities related to smart grids, HVAC networks, and HVDC power systems.
• Large-Scale Real-Time Simulation: Researchers needed detailed simulation of large AC and DC grids, including electromagnetic transients and power system devices operating at different time scales.
• Communication and HIL Testing: The platform needed fast I/O interfaces, closed-loop testing with real protection and control equipment, IEC 61850 communication support, and access from multiple workstations.

The OPAL-RT Solution

• High-Performance Simulation Platform: KTH deployed two real-time supercomputers with a combined total of 24 CPU cores connected through a high-speed link for scalable real-time simulation.
• Advanced Hardware & Communications: The platform includes more than 350 fast I/O channels, a 250 V high-voltage interface, IEC 61850 communication support, GOOSE and Sampled Value messaging, and FPGA coprocessors for ultrafast simulation.
• Open Research Environment: RT-LAB provides integration with MATLAB/Simulink, SimPowerSystems, LabVIEW, OPC, openPDC, and other third-party tools while supporting floating licenses across multiple workstations.

The Results

• Accelerated Research: The eMEGAsim simulator enabled broad research activities, accelerated development, and supported customization and integration with third-party software and hardware.
• Reduced Prototype Dependence: Digital real-time simulation enabled researchers to avoid costly and time-consuming physical test stands and hardware prototypes.
• Integrated Research & Education: SmarTS-Lab created a collaborative environment that supports both advanced research and classroom learning.
• Enhanced Engineering Training: The platform helps prepare students with analytical, design, and implementation skills relevant to future smart grid technologies.

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