A control method of single phase power active filter on d-q coordinate with Hilbert Transformer is presented in this letter. By using Hilbert transformer, the d-q components on single phase current and voltage can be obtained. Then, harmonic components can be derived from these d-q components instantaneously as well as three phase power active filter systems. The effectiveness of the proposed control method has been verified by the computer simulator and some significant characteristics are also shown in this letter.
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