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Higher harmonics in power-supply systems

G.I. Lagutin, А.M. Panchenko, A.I. Garagulya
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In process of power consumption the sinusoidal wave distortion takes place due to the influence of the consumers with switched mode power supplies. This article deals with the problem of higher harmonics, originating in electrical networks, and their influence on separate power supply elements. The author makes a proposal for the development of a portable power quality index measurement device.
Keywords: higher harmonics, zero-, positive-, negative- sequence system, surface effect, proximity effect, power-supply system, power quality index, portable power quality index measurement device