Harmonic-Invariant Scaling Method for Power Electronic Converters in Power Hardware-in-the-Loop Test Beds

Power hardware-in-the-loop (PHIL) is an experimental technique that uses power amplifiers and real-time simulators for studying the dynamics of electronic converters electrical grids. PHIL tests provide means functional validation advanced control algorithms without burden building high-power prototypes during early TRL. However, replicating behavior systems with laboratory SDC can be complex. Inaccurate scaling coupled exclusive focus on instantaneous voltages currents at fundamental frequency lead to results are only partially relatable under study. Test beds fail represent switching harmonics cannot used harmonic penetration or loss characterization large-scale converters. To tackle this issue, paper proposes a harmonic-invariant method (HISM) exploits VA rating preexisting SDCs more accurately phenomena in test bench. Firstly,, theoretical analysis proposed presented and, subsequently, validated MATLAB simulations tests.