Improving System Control with New Digital Governors

摘要

The Four Dam Pool Power Agency in Alaska replaced the two mechanical governors at its 22.5-MW Tyee Lake plant with digital governors. The resulting improvement in control and stability of the plant's output makes completion of a transmission line between Tyee Lake and neighboring 22.5-MW Swan Lake feasible. With the two plants connected, excess electricity from Tyee Lake can be used to supplement the Swan Lake output, reducing the need to use expensive diesel-fueled power.