RT info:eu-repo/semantics/article T1 Harmonic measurement and analysis system for characterization of adjustable speed drives A1 Arranz Gimón, Ángel A1 Zorita Lamadrid, Ángel A1 Morinigo Sotelo, Daniel A1 Fernández Cavero, Vanesa A1 Duque Pérez, Óscar K1 Adjustable Speed Drive (ASD) K1 Electric power quality K1 Harmonic distortion K1 Standard IEC61000-4-7 K1 Time aggregation K1 Frequency grouping K1 Induction motor K1 Electrotecnia K1 Electrical engineering AB Variable speed drives, commonly employed for motor speed control, incorporate electronic converters that emit harmonics to both the power grid and the motor-load system. These harmonics can have adverse effects on the motors, necessitating the experimental measurement of their diverse and unpredictable harmonic content. To perform these measurements on the input side of the drives or power grid, commercial quality analyzers are available, but they are not prepared to perform these measurements on the motor-load or output side of the drive. The outputs of the drives generate a significant harmonic and interharmonic content across a wide range of low and high frequencies, coupled with variable fundamental frequencies. Consequently, the development of a specialized measurement system tailored to these signal characteristics becomes imperative. This paper presents a harmonic measurement and analysis system specifically designed for frequency inverter’s output signals, which adheres to international standards that standardize measurements and includes new features to evaluate converter signals not available in commercial meters. By utilizing this system, frequency groupings and distortion rates are obtained to comprehensively analyze the power quality of commercial drives under realistic operating conditions, thus enabling the early detection of potential failures and the implementation of preventive measures. PB Elsevier SN 0142-0615 YR 2024 FD 2024-11 LK http://hdl.handle.net/10259/9934 UL http://hdl.handle.net/10259/9934 LA eng DS Repositorio Institucional de la Universidad de Burgos RD 21-ene-2025