<![CDATA[Aiming at the question of parameter of double-tuned filter, A new method of designing double-tuned filter was proposed based on resonance frequency, by using the relationship that the impedance of double-tund filter and two parallel single tuned filters is equal and the resonance frequency of single tuned filter is the zero of the impedance of double-tuned filter. A simulation was established to prove the correctness of this method by using the software MATLAB in a power system. Simulation results show that the double-tuned filter designed in this method works well. All of this had an important guiding significance for the research of double-tuned filter. DOI: http://dx.doi.org/10.11591/telkomnika.v11i3.2182]]>
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