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Phase lock loop with cascade tracking filters for synchronizing an electric grid
Phase lock loop with cascade tracking filters for synchronizing an electric grid
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机译:具有级联跟踪滤波器的锁相环,用于同步电网
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摘要
Present embodiments relate to a method for synchronizing an electric grid. The method includes receiving a phase voltage of the electric grid. The method further includes determining one or more disturbance frequencies in the phase voltage via a plurality of sequential tracking filters, wherein each of the plurality of tracking filters corresponds to a harmonic of the received phase voltage. The method further includes removing the disturbance frequencies components sequentially to produce a minimally distorted frequency, and performing a PLL operation on the clean frequency to determine a phase angle of the frequency.
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