Plenary Lecture

Digital Measurements of Non-Sinusoidal Electrical Quantities and Metrological Performance

Professor Costin Cepisca
Electrical Engineering Faculty
Measurement Department
University POLITEHNICA of Bucharest
Spl. Independentei 313, Bucharest, Romania
 

Abstract: This talk will review a recent development in the field of digital measurements. Accurate measurement of ac quantities is important at all levels of the electrical power system. The presence of harmonics in the power system put higher demands on both power system components and on the measurement equipment. In power system measurements the problems caused by harmonics have been incorporated in increased uncertainty figures.
The subject is classical, but the theoretical and experimental treatment of several of its topics is new and includes:
- Analysis of a new generation of instruments for measuring distorted signals, voltages and currents. These instruments can calculate and display the amplitude and phase angle of each harmonic, by the use of sampling techniques and "FFT analysis", and the active, reactive and apparent power and energy;
- Experimental results based of the use of power and energy calibrator;
- The development of methods for uncertainty determination in the field of metrological performances.

Brief Biography of the Speaker:
Costin Cepisca was born in Bucharest, Romania, on May 21, 1949. He received the degree in electrical engineering (1972) and the Ph.D. (Dr.ing.) from Bucharest Polytechnic Institute in 1983.
He is currently Professor of measurement systems at the POLITEHNICA University of Bucharest, Head of Research Centre for Metrology and Measurement Systems and Vice-Dean of Faculty of Electrical Engineering. His present research interest includes the sensor interface systems, analogue circuit design, signal processing, measurement theory and low-frequency measurements. He has published more 300 technical papers and 60 books and has been involved in numerous government and industrial projects in area of measurements and instrumentation.