ADF Aumenta producción de la planta de Tratamiento de Agua de 30% (Comsys AB)

The water treatment process features numerous variable-speed pumps to process large amounts of fluids. By optimizing the electrical behavior of pumps controlled by variable frequency drives (VFD) con Comsys ADF Active Harmonic Filter tecnología, GRYAAB increased the maximum output capacity of these systems by 30%.

Gryaab_case1

“Gracias a ADF ahora podemos procesar 30% más líquidos durante los períodos de máxima demanda. We also save energy.”
– Roger Rosenqvist, Gerente de Proyectos

Fondo

GRYAAB is the sewage works of the Gothenburg region in Sweden and its treatment plant Ryaverket os among the largest in all of Scandinavia. Central to saving the environment from pollution, los dos requisitos básicos sobre esta infraestructura regional críticos son el funcionamiento constante y suficiente capacidad de tratamiento. Sistemas de respaldo de energía UPS son cruciales para asegurar un suministro de energía seguro y estable.

Cuando 17 new VFD-controlled pumps were installed at Ryaverket to increase plant capacity, harmonic distortion on the electrical system rose significantly. The resulting overcurrents caused the UPS fuses to melt. This was avoided by running the pumps at reduced speed. This was however a temporary solution since this reduced treatment capacity below demand. Los convertidores de frecuencia son una fuente bien conocida de los armónicos potencialmente perjudiciales.

Key benefits | Pump drives:

  • 30% increased plant output
  • Secured UPS performance provides for reliable production
  • Harmonic distortion below threshold values
  • Reduced energy consumption

Gryyab_case1_graph

Challenge – eliminating the harmonics

After consulting Ångpanneföreningen (ÅF), a premier Swedish consulting firm, Ryaverket announced a public procurement process seeking the implementation of active harmonic elimination technology. El objetivo era recuperar la capacidad de tratamiento completo mediante la eliminación de los armónicos. Comsys won the procurement in competition with several renowned companies.

Solution – ADF Active Filter units

El resultado fue la instalación de dos 600 kVA Comsys ADF Filtro activo unidades para manejar dos transformadores que suministran 2160 kVA. Hubo una serie de características de la Comsys ADF solution that led to Ryaverket’s choice:

  • Sistema de conexión y dimensionamiento flexible
  • Los costes de mantenimiento a otros equipos conectados
  • Entorno eléctrico perturbaciones
  • Reducción del consumo de energía a través de disminución de las pérdidas del transformador

Result – harmonics elimination

The harmonics elimination resulted in an increased max output capacity of 30%.
Además, GRYAAB now manages to operate below the threshold value for harmonic distortion (SS 421 1811). The reduced energy consumption and improved environmental performance are welcomed additional benefits.
Comsys AB • Ideon Science Park • SE-223 70 LUND • Suecia
Tal: +46 46 286 35 00 • Fax: +46 46 286 35 05
E-mail:info@comsys.se