Harmonic compensation using advanced electric machines
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abstract
In this paper, a new electromechanical active harmonic filter is proposed. The proposed electromechanical harmonic filter is essentially a rotating Asymmetric Air gap Concentrated Winding Synchronous Machine (AACWSM) with AC and DC excitation field. It is shown that the AACWSM with its unique design can be used to cancel the most dominant current harmonics of the adjacent nonlinear load. The filter is connected in a shunt manner between a non-linear load and utility. This new AACWSM with its nonlinear current waveform can generate the nonlinear load required harmonics current. By proper control of the field excitation, the proposed electromechanical harmonic filter can compensate for the 5th and 7th harmonic currents in the electric power distribution system. In addition, 11th and 13th harmonics magnitudes are also significantly reduced. Analysis and simulation are presented to demonstrate the effectiveness of the proposed harmonic compensation method.
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IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)