1. (1) K. Sakimoto, Y. Miura, and T. Ise: “Stabilization of a Power System including Inverter Type Distributed Generators by the Virtual Synchronous Generator”, IEEJ Trans. PE, Vol. 132, No. 4, pp. 341-349 (2012) (in Japanese)
2. (2) H. Bevrania, T. Ise, and Y. Miura: “Virtual synchronous generators: A survey and new perspectives”, Int. J. Electri. Power & Energy Syst., Vol. 54, pp. 244-254 (2014)
3. (3) J. Tamura and I. Takeda: “A Consideration on the Sustained Oscillation Theory for Analysis of Hunting of Synchronous Machines”, T. IEE Japan, Vol. 110-D, No. 12, pp. 1294-1295 (1990) (in Japanese)