Multi-rate Discrete Domain Modeling of Power Hardware-in-the-Loop Setups
نویسندگان
چکیده
Power Hardware-in-the-Loop (PHIL) facilitates the testing of novel power engineering solutions in lab, allowing a flexible environment while keeping high fidelity real hardware. Due to analog/digital intersection PHIL setup, selecting simply continuous or single-rate discrete-time domain fails model such hybrid system accurately. This paper proposes multi-rate modeling approach setup that can estimate mixed analog and digital nature accurately, resulting accuracy improvement over wide range frequencies. The proposed applies two different sampling times, large one connected simulator small for analog-hardware part. Dynamics delays interfaces, as analog-to-digital converters, amplifier, sensor, low-pass filter, have been accurately modeled validated by means experimental results.
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Sampling rate conversion (SRC) is one of important issues in modern sampling theory. It can be realized by up-sampling, filtering, and down-sampling operations, which need large complexity. Although some efficient algorithms have been presented to do the sampling rate conversion, they all need to compute the N-point original signal to obtain the up-sampling or the down-sampling signal in the tim...
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Abstract: The importance of Power Hardware-in-the-Loop (PHIL) experiments is rising more and more over the last decade in the field of power system and components testing. Due to the bidirectional exchange between virtual and physical systems, a true-to-reality interface is essential; however, linking several dynamic systems, stability issues can challenge the experiments, the components under ...
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ژورنال
عنوان ژورنال: IEEE open journal of power electronics
سال: 2023
ISSN: ['2644-1314']
DOI: https://doi.org/10.1109/ojpel.2023.3283035