6533b823fe1ef96bd127edd1
RESEARCH PRODUCT
A Technique for Power Supply Harmonic Impedance Estimation Using a Controlled Voltage Disturbance
Pericle ZanchettaMark SumnerB. PalethorpeDavid ThomasM. C. Di Piazzasubject
Engineeringindustrial power systemsSwitched-mode power supplybusiness.industryImpedance measurementImpedance bridgingHardware_PERFORMANCEANDRELIABILITYVoltage optimisationpower qualityElectric power systempower system measurements.Power electronicsElectronic engineeringVoltage sourceElectrical and Electronic EngineeringbusinessActive filterNegative impedance converterdescription
A method for power system impedance estimation is presented. The method employs a power converter to inject a voltage transient onto the supply system. As the technique employs controlled power electronic devices it may be used as a stand alone piece of a portable measurement equipment, or it may be embedded into the functions of an active shunt filter for improved harmonic control. The impedance is estimated through correlation of the measured voltage and current transients. Simulations and experimental results demonstrate the measurement technique is highly accurate and effective.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-03-01 |