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Research About the Positive and Negative-sequence Detection Phase-locked Loop
2017
DEStech Transactions on Engineering and Technology Research
Under the condition of three-phase unbalance voltages, the software phase-locked loop(SPLL) outputs an error angle which contains harmonic component due to the negative-sequence component. This paper proposes a method to remove the phase effect by eliminating negative-sequence component. This method makes a positive and negative-sequence detection for the three-phase voltage with the way of decoupling through closed loop feedback. The method is verified by an experiment which established the
doi:10.12783/dtetr/mimece2016/10003
fatcat:nto5qgfmb5ek7gnfg54h4mclca