A novel frequency-adaptive PLL for single-phase grid-connected converters

作者: Xiong Fang , Yue Wang , Ming Li , Jinjun Liu

DOI: 10.1109/ECCE.2010.5618000

关键词: Phase frequency detectorRotating reference frameTotal harmonic distortionPhase-locked loopPhase distortionElectronic circuitEngineeringConvertersPLL multibitElectronic engineering

摘要: This paper presents a novel frequency-adaptive Phase-Locked Loop (PLL) for single-phase grid-connected power converters. The orthogonal component in the rotating reference frame is generated by synthesis circuit which utilizes detected amplitude and phase. It's without using any additional circuits. Moreover, special improved PLL proposed to make sure work well under low-order harmonics distortion condition. These structures are simple easy implementation. In this paper, method analyzed its performance evaluated both simulations experiments.

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