B. An, J. Park, T. Kim, J. Che, S. Pyo, and T. Park, “A study on speed control of
variable frequency transformer for suppressing power system low frequency oscillation,”
The Transactions on the Korean Institute of Electrical Engineers, vol. 71, no. 5,
pp. 675-684, May 2022. DOI:10.5370/KIEE.2022.71.5.675
