A real-time transient simulation of nonlinear elements in transmission networks requires significant computational power. This paper proposes an iterative nonlinear transient solver on a field-programmable gate array. The parallel solver, based on the compensation method and the Newton–Raphson algorithm (continuous and piecewise), is entirely implemented in Very high speed integrated circuit Hardware Description Language. It also involves sparsity techniques, deeply pipelined arithmetic floating-point processing, and parallel Gauss–Jordan elimination. To validate the new solver, two case studies are simulated in real-time: surge arrester transients in a series-compensated line and ferroresonance transients in a transformer, with time steps of 5 microseconds and 3 microseconds, respectively. The captured real-time oscilloscope results demonstrate high accuracy of the simulator in comparison to the offline simulation of the original system in the ATP version of electromagnetic transient program.
An Iterative Real-Time Nonlinear Electromagnetic Transient Solver on FPGA
2011-06-01
oai:zenodo.org:7708143
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC: | 629 |
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