Power-HIL emulation of railway catenary dynamics with real-time finite element modeling in moving coordinates and model-predictive control

摘要

This work proposes an innovative Power-Hardware-in-the-Loop development platform for the testing of railway current collectors. A real-time-capable finite-element model of the catenary is formulated to describe its relevant dynamics around the pantograph contact efficiently and accurately. The description in train-fixed, moving coordinates allows the computational domain to be shortened considerably. Unwanted reflections of outgoing wave components at the edges are suppressed by an efficient absorbing boundary control approach. A model-predictive impedance controller emulates the virtual catenary dynamics on the real pantograph test bench in real time.