A single-tuned passive harmonic filter design using transfer function approach for industrial process application
by Young-Sik Cho, Hanju Cha
International Journal of Mechatronics and Automation (IJMA), Vol. 1, No. 2, 2011

Abstract: This paper presents a new analytical design method of passive harmonic filter for industrial process application using a transfer function approach and provides a graphical formulation so that a visualised insight into an interaction between individual filter and system response can be attained. Harmonic impedance, voltage division and current division transfer function are used as a design tool, which makes calculated filter parameters to satisfy IEEE-519 requirements. A simple six-step design procedure is introduced in the filter design and the procedure includes measurement analysis on system, selection of filter location (PCC), calculation of filter specification, decision of tuning order, filter design for system and fit filter to system. Principle of the design procedure is based on a numerical/graphical iterative solution as well as trial and error with visualisation feed-back using 'algebra on the graph'. Finally, performance of the designed passive harmonic filter is evaluated in experiment and the result shows that 5th, 7th, 11th and 13th harmonics are decreased within IEEE-519 requirements, respectively.

Online publication date: Thu, 12-May-2011

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