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A novel hybrid PWM algorithm having superior harmonic performance
Nuevo algoritmo PWM híbrido de desempeño armónico superior
Keywords:
AC electric drive, harmonic analysis, stator flux ripple, inverter, pulse width modulation (PWM), space vector PWM (SV-PWM) (en)accionamientos eléctricos AC, análisis armónico, flujo armónico del estator, inversores, modulación por ancho de pulso (PWM), PWM de vectores espaciales (SV-PWM) (es)
This paper presents a novel hybrid modulation algorithm which improves the harmonic performance of eight of the most common pulse width modulation (PWM) algorithms for voltage source inverters (VSI) in the electric drive field. From harmonic analysis of these eight algorithms, a methodology was established for designing a hybrid modulation scheme offering superior harmonic performance. The algorithm so designed was validated theoretically by calculating the total harmonic distortion factor FDIST and experimentally by measuring the weighted total harmonic distortion factor VWTHD.
Este artículo presenta el diseño y validación de un nuevo algoritmo de modulación por ancho de pulso (PWM) híbrido que supe-ra el desempeño armónico de varios algoritmos de modulación empleados en procesos de conversión de potencia en acciona-mientos eléctricos AC. A partir del análisis armónico de los algoritmos PWM más comunes en la literatura, se establece una me-todología para diseñar un esquema de modulación híbrido que ofrece un desempeño armónico superior; este desempeño es verificado teórica y experimentalmente utilizando el factor de distorsión armónica taEste artículo presenta el diseño y validación de un nuevo algoritmo de modulación por ancho de pulso (PWM) híbrido que supera el desempeño armónico de varios algoritmos de modulación empleados en procesos de conversión de potencia en accionamientos eléctricos AC. A partir del análisis armónico de los algoritmos PWM más comunes en la literatura, se establece una metodología para diseñar un esquema de modulación híbrido que ofrece un desempeño armónico superior; este desempeño es verificado teórica y experimentalmente utilizando el factor de distorsión armónica total FDIST y el índice de distorsión armónica de corriente VWTHD.otal FDIST y el índice de distorsión armónica de corriente VWTHD.
References
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Copyright (c) 2009 Diana Jimena López Mesa, Guillermo Alberto Camacho Muñoz, Jaime Oscar Díaz Chávez, Carlos Alberto Gaviria López, Gilberto Bolaños Pantoja
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