Woodward DECS-100-B15 Digital Excitation Control – ±0.25% Voltage Regulation Accuracy AVR

Description

Application Scenarios

In a Southeast Asian textile manufacturing facility operating a 2×1.5 MW cogeneration plant, the electrical load fluctuated rapidly as production lines cycled on and off throughout the day. The existing analog voltage regulator struggled to maintain stable generator terminal voltage during these transitions, causing frequency excursions and occasional protective trips that interrupted production.

After installing the DECS-100-B15 as the primary excitation controller, the plant achieved voltage regulation within ±0.25% across the full load range. The AVR‘s rapid response time of within one cycle ensured stable generator output even during sudden load steps, while the built-in VAR/PF control modes enabled seamless parallel operation with the local utility grid.

In another case, a marine vessel operating with multiple diesel generators needed reliable reactive load sharing during dynamic positioning operations. The DECS-100-B15 provided reactive droop compensation adjustable from 0 to 10%, ensuring balanced reactive load distribution across the generator fleet and preventing circulating currents between paralleled units.

Parameters