An Improved Rotor PLL (R-PLL) for Enhanced Operation of Doubly Fed Induction Machine
作者： M. A. Asha Rani , Chilakapati Nagamani , G. Saravana Ilango
DOI: 10.1109/TSTE.2016.2585979
关键词:
摘要: A versatile method to compute the rotor position of a three-phase induction machine under balanced or unbalanced grid voltage is proposed in this paper. The doubly fed (DFIM) computed closed loop using R-PLL with q -axis stator flux as reference signal and speed feed forward input. PI controller used reduce phase error while updated input (rotor speed) eliminates frequency error, thereby facilitating quick accurate response. Furthermore, directly only measured voltages currents, independent any measurement current position. Also, computation process free from integration heuristic mathematical calculations. Starting on fly near through synchronous even are attractive features. effectiveness scheme validated PSCAD/EMTDC simulations laboratory experiments. Excellent results demonstrate efficacy scheme.
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