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Harmonic distortion is one of important factor to consider in power system network. In a big network such as wind power plant (WPP), careful analysis and mitigation steps is essential. Many aspects including resonances created from interactions between inductive and capacitive elements must be considered. Passive filter or tuned filters are common solution for mitigating harmonics by creating path for specific harmonic but many times it created a resonance issue. By implementing hybrid filter, an active filter connected in series with shunt passive filter, it enhances the ability of damping the resonant. The concept is adapted from previous research works and in this paper it is implemented on a WPP network. This paper presents a study on harmonic resonances in a WPP, particularly on parallel resonance. The damping of resonance by using common passive filter and an alternative hybrid filter is proved through simulation in PSCAD-EMTDC software. An aggregated WPP model of 400 MW with 40 wind turbines of 10 MW each are used as a study case
CitationNisak, K. [et al.]. Harmonic resonances damping using hybrid filter for WPP. A: Annual Conference of the IEEE Industrial Electronics Society. "Proceedings of the 38th Annual Conference of the Industrial Electronics Society". Montreal: 2012, p. 1312-1319.
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