Power quality: monitoring and innovation in PFC and harmonic filtering

Power quality has become a great concern for both energy suppliers and their customers because the increasing use of sensitive devices and the significant consequences of a poor power quality for the competitiveness of the companies. This paper shows the different aspects of the power quality and the interest of the installation of fixed monitoring system in the consumer facilities. A methodology for improving power quality is described. Innovative solutions for power factor correction and harmonic filtering are presented. The development of a hybrid filter is a high performance solution to reduce the disturbances and respect the contractual current distortion limits. The real time compensation system is a new solution to reduce the voltage fluctuations caused by large loads with rapid, cyclical or random variations and to reduce the switching transients