ADF Melhora dinâmico banco de ensaio (Comsys AB)

Fundo

The development department within a major european plant owns several test benches to test certain components in their products during the development phase. Different test conditions can be programmed, giving the test bench extremely dynamic properties.

Desafiar

Two parts of the test bench are connected to the same transformer. The load is very dynamic and the amplitude of the load current can change from zero to its maximum in approximately 100 ms. Both parts of the test bench could not be run at the same time, because of the high harmonic disturbances and voltage notches up to 25 %. Apart from exceeding the limits in EN61000-2-4, this also caused serious delay in the testing facility.

Solução –
ADF Active Filters from Comsys

The owner of the facility installed equipment from Comsys AB to compensate the disturbances. Two ADF P300W-200/480 and one ADF P200W-100/480 were installed to compensate all frequencies up to the 100th harmonic order. O ADF P300 series can be used to compensate lower harmonics and the ADF P200 series can compensate the higher order harmonics and interharmonics. O Filtro ativo ADF units were configured to share the load, the P200 working on higher orders only. O resultado foram tempos de resposta extremamente curtos e perturbações muito reduzidas da carga.

Resultado

Os entalhes de tensão podem ser reduzidos para 10 % e todos os harmônicos poderiam ser reduzidos ao nível solicitado em relação à EN61000-2-4. A utilização de ambas as bancadas de teste é agora possível e os problemas relacionados com a má qualidade da energia foram resolvidos.