6533b85bfe1ef96bd12ba28c
RESEARCH PRODUCT
Rogowski coil current transducer compensation method for harmonic active power error
Salvatore NuccioValentina CosentinoGiovanni TineAntonio CataliottiDario Di Carasubject
Frequency responseEngineeringbusiness.industryApplied MathematicsAcousticsPower system harmonics Transducers Current transformers. Frequency response Power measurement Rogowski coilTransducersElectrical engineeringAC powerCondensed Matter PhysicsCurrent transformerRogowski coilCompensation (engineering)Power (physics)Current transformersFrequency responseHarmonicPower system harmonicsElectrical and Electronic EngineeringPower measurementbusinessInstrumentationSettore ING-INF/07 - Misure Elettriche E ElettronicheRogowski coilVoltagedescription
Abstract In the harmonic active power measurement, the highest uncertainties are generally introduced by the current and voltage transducers. In a previous paper, the authors showed that the current transformer (CT) can introduce significant errors in such measurement, especially if the phase shift between voltage and current is close to ±90°. In such condition the errors on harmonic power measurement are mainly due to the CT phase displacement. This paper shows that better results can be achieved with more linear transducers, such as the Rogowski coil current transducers (RCCTs), whose metrological performance in distorted condition can be improved, by means of a proper compensation method. The proposed method for RCCTs compensation is based on the frequency response and it allows to reduce the errors on harmonic power measurement, also for phase shift close to ±90°. The study is supported by several experimental tests.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-03-01 |