Abstract The paper presents a way of solving the electromagnetic interference (EMI) problem for an electric power system with power line communication, supplied from an autonomous power source. Theoretical results include a mathematical model of the system with power line communication derived from the recently introduced multi-phase bridge-element concept. Numerical experiments are performed in two steps. Firstly, a mathematical model of the electric power system is developed and realized in software for the system including a three-phase synchronous generator, a switch-mode power supply with an equivalent load, a source and a singlefrequency power line modem represented by the circuit extracting the data signal. Secondly, an AC/DC/AC converter with an integrated active filter is read more

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Abstract Power line noise is known to affect the performance of broadband power-line communications significantly. This paper presents a frequency-domain approach to characterize and model the statistical variation of power-line noise. The model considers both the background noise and the impulsive noise. The background noise model is based on statistical analysis of the results from two long-term measurements of noise spectrum conducted at two separate sites of a laboratory and a residential apartment. On the other hand, the impulsive noise model is obtained by direct measurements from the noise sources (i.e., various electrical household appliances). The amount of impulse noise reaching a power-line communications (PLC) receiver can then be determined with consideration of the channel read more

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