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Performance Evaluation of a Multifunctional Energy Metering IC under Sinusoidal and Non-Sinusoidal Conditions

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EN
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EN
Low-cost handheld instruments performing a large variety of electrical measurements are recently appeared on the market. Their diffusion is mainly due to the availability of integrated circuits that carry out many measurement functions, thus simplifying the instrument implementation and reducing the costs. In this paper, the accuracy performances of an integrated circuit featuring rms and power measurements are evaluated under both sinusoidal and non-sinusoidal conditions. The implemented measurement bench and the obtained results are presented. The results show that the accuracy of the device under test is satisfactory for active power and current rms values, instead of the voltage channel accuracy is significantly worst.
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  • Dipartimento Ingegneria Elettrica, Alma Mater Studiorum - Universita di Bologna, Italy
Bibliografia
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  • 2. C r i s t a l d i L . , F e r r e r o A . : A method and related digital instrument for the measurement of the electric power quality. IEEE Trans. on Power Delivery, vol. 10, n. 3, pp. 1183.1189, July 1995.
  • 3. A n g r i s a n i L . , D a p o n t e P. , D . A p u z z o M. : Virtual digital signal-processing instrument for measuring superimposed power line disturbances. Measurement, vol. 24, n. 1, Pages 9. 19, July 1998.
  • 4. B u c c i G . , L a n d i C .: On-line digital measurement for the quality analysis of power systems under nonsinusoidal conditions. IEEE Trans. on Instr. Meas., vol. 48, n. 4, pp. 853.857, August 1999.
  • 5. A i e l l o M. , C a t a l i o t t i A . , N u c c i o S . : A PC-based instrument for harmonics and interharmonics measurement in power supply systems. Measurement, vol. 35, n. 4, Pages 371. 380, June 2004.
  • 6. F e r r e r o A . : Definitions of electrical quantities commonly used in non-sinusoidal conditions. ETEP, vol. 8, n. 4, pp. 235. 240, 1998.
  • 7. IEC EN 61000-4-30, Electromagnetic Compatibility . Part 4-30: Testing and measurement techniques Power quality measurement methods. 2003.
  • 8. IEC EN 61000-4-7, Electromagnetic Compatibility . Part 4-7: Testing and measurement techniques . General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto. 2003.
  • 9. P e r e t t o L . , Wi l l e m s J . L . , E m a n u e l A . E . : The effect of the integration interval on the measurement accuracy of rms values and powers in systems with nonsinusoidal waveforms. Proc. of the 7th International Workshop on Power Definitions and Measurements under Non-Sinusoidal Conditions, July 2006, Cagliari, Italy.
  • 10. ADE 7758: Polyphase multi-function energy metering IC with per phase information. www.analog.com
  • 11. IEC EN 60687, Specification for alternating current static watt-hour meters for active energy (classes 0,2 S and 0,5 S). 1993.
  • 12. IEC EN 61268, Alternating current static var-hour meters for reactive energy (classes 2 and 3). 1996.
  • 13. IEC EN 62053-22, Electricity metering equipment (a.c.) . Particular requirements . Part 22: Static meters for active energy (classes 0,2 S and 0,5 S). 2003.
  • 14. IEC EN 62053-23, Electricity metering equipment (a.c.) . Particular requirements . Part 23: Part 23: Static meters for reactive energy (classes 2 and 3). 2003.
  • 15. EN 50160, Voltage characteristics of electricity supplied by public distribution systems. 2004
  • 16. IEEE Std. 519, IEEE recommended practices and requirements for harmonic control in electrical power systems. 1993.
  • 17. F e r r e r o A . , Mu s c a s C . : On the selection of the .best. test waveform for calibrating electrical instruments under nonsinusoidal conditions. IEEE Trans. on Instr. Meas, vol. 49, n. 2, pp. 382.387, April 2000
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Bibliografia
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bwmeta1.element.baztech-article-BAT1-0029-0031
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