Abstract
The relatively high level of the generated interference, especially in CISPR A frequency band, and observed malfunctions of electronic equipment caused by converters in relatively distant circuits made it necessary to carry out research of the interference penetration depth into the local grid. The commercially available 25 kW four-quadrant frequency converter (FC2, Table A.6) with 10 kW asynchronous machine (IM3, Table A.4) has been used in the research on interference flow. Preliminary measurements have been taken in a normalized system comprising the EMI receiver and Line Impedance Stabilization Network (LISN). Figure 3.1 shows the results of measurements using peak and average detectors and typical intermediate frequency bandwidth (IF BW) equal to 200 Hz and 9 kHz for CISPR A and CISPR B frequency range, respectively.
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Smolenski, R. (2012). Conducted EMI Issues in Smart Grids. In: Conducted Electromagnetic Interference (EMI) in Smart Grids. Power Systems. Springer, London. https://doi.org/10.1007/978-1-4471-2960-8_3
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