On June 26, 2025, during the 9th edition of the International Conference on Clean Electrical Power (ICCEP), our firmware engineer Mohammad Sadegh Nasiri presented the study: “Synchronization techniques effect on series power electronic converter”.
This work addresses a concrete and widespread issue in advanced grid-connected power conversion systems, offering a validated and relevant solution for both industry and academic research.
The study was carried out by Mohammad Sadegh Nasiri from the Ortea Next R&D team, in collaboration with Politecnico di Milano and the University of L’Aquila, within the framework of the Italian national project MUSA.
“I believe this study provides a real contribution to a practical need in the sector. It’s a current topic that combines industrial application with scientific rigor,” said Nasiri, Executive PhD student.
TECHNICAL APPROACH
The research focuses on a comparative analysis of synchronization techniques used in series power electronic converters – devices that can offer significant utility for improving Power Quality, Hosting Capacity, and the protection of modern electrical grids by limiting the fault current.
The goal is to assess how different synchronization strategies (including traditional Zero Crossing Detections, different types of Synchronous Reference Frame-Single Phase Locked Loop Systems as real-time algorithms) affect the system’s dynamic performance and accuracy under realistic grid in steady state and transient conditions, such as:
- Load variations
- Rapid current phase shifts
- Harmonic Distortion
- Voltage control performance during shallow sag and swells
- Measurements noises
The tests were conducted in a comprehensive model in simulation environment using Software In the Loop (SiL) techniques, and will be validated on experimental platforms, highlighting how the choice of synchronization method directly impacts the converter’s stability and responsiveness.
In particular, the study proposes an optimized model that enhances system behavior across wide range of Grid-Connected Power Converters carefully weighing pros and cons of each synchronization method in both steady-state and dynamic scenarios, with potential applications in:
- Dynamic Voltage Restorers (DVRs)
- Active Power Filters
- Industrial UPS Systems
- Stand Alone Grid-Forming, Grid-Following Converters
Participation in a high-level international event like ICCEP, an important reference for clean and sustainable electrical technologies, confirms Ortea’s ongoing commitment to innovation, supported by in-house engineer-researchers actively collaborating with top academic institutions in Italy.
Our approach is based on research, development, testing, and academic partnerships—key elements in developing reliable solutions that meet the energy challenges of today and tomorrow, while offering cutting edge solutions to modern problems.
