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RESEARCH PRODUCT
A Phase-Locked Loop for the Synchronization of Power Quality Instruments in the Presence of Stationary and Transient Disturbances
Valentina CosentinoSalvatore NuccioAntonio Cataliottisubject
Engineeringbusiness.industryFundamental frequencySignalSynchronizationPhase-locked loopTransducerInstrument synchronization phase-locked loop (PLL) control power quality transient disturbancesControl theoryElectronic engineeringInstrumentation (computer programming)Transient (oscillation)Electrical and Electronic EngineeringbusinessSettore ING-INF/07 - Misure Elettriche E ElettronicheInstrumentationVoltagedescription
Power quality instrumentation requires accurate fundamental frequency estimation and signal synchronization, even in the presence of both stationary and transient disturbances. In this paper, the authors present a synchronization technique for power quality instruments based on a single-phase software phase-locked loop (PLL), which is able to perform the synchronization, even in the presence of such disturbances. Moreover, PLL is able to detect the occurrence of a transient disturbance. To evaluate if and how the synchronization technique is adversely affected by the application of stationary and transient disturbing influences, appropriate testing conditions have been developed, taking into account the requirements of the in-force standards and the presence of the voltage transducer.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-12-01 | IEEE Transactions on Instrumentation and Measurement |