A portable integrated hardware/software interface based on FPGA/DSP platform for data acquistion and software interface for data analysis will be developed with the purpose of applying it to the analysis of electrical waveform distortions in diesel electric ships power systems and microgrids in general. Current and voltage waveforms in isolated electrical systems like those in ships can be severely distorted, field measurements showing not only high levels of distortions but also non-linear and non-stationary characteristics. The methods and tools used today to analyse these distortions are not suited for dealing with simultaneously non-linear, non-stationary signals. This project aims at developing "in-house" both the hardware and software tools that will accurately extract meaningful data from the observed waveforms without loss of relevant information and at relatively low cost. The instantaneous frequency concept presented in [1], will be at the core of the implementation of this portable integrated hardware/software tool.
[1] N.E. Huang, Z.Wu, S.R. Long, K.C. Arnold, X. Chen and K. Blank, "On Instantaneous Frequency," in Advances in Adaptive Data Analysis, Theory and Applications, World Scientific Publishing Company, vol.1, no. 2, April 2009
