1. (1) Japanese Electric Association: Grid-interconnection Code JEAC 9701-2016, Ohmsha, pp. 51-54, pp. 63-64, pp. 74-81, pp. 94-95, p. 274, p. 404 (2016) (in Japanese)
2. (3) S. Komami, T. Sakata, and S. Yamada: “Impacts of RE's Anti-islanding on Power System Oscillatory Stability”, IEEJ Trans. PE, Vol. 136, No. 6, pp. 557-568 (2016-6) (in Japanese)
3. (4) Y. Yoshida, H. Suzuki, K. Fujiwara, and Y. Ishihara: “Experimental Study of Islanding-Prevention Method by Harmonic Injection Synchronized to Exciting Current Harmonics of Pole Transformer”, IEEJ Trans. PE, Vol. 133, No. 1, pp. 79-90 (2013-1) (in Japanese)
4. (5) S. Saiki, N. Nunomura, and Y. Yoshida: “Synchronized Injection Method of Harmonic Active Signal for Islanding Detection of PV Inverter”, 2017 National Convention Record IEE Japan, No. 6-298 (2017-3) (in Japanese)
5. (6) Y. Yoshida and H. Suzuki: “A basic study on novel islanding detection method for photovoltaic inverters by positive feedback of harmonic voltage”, J. Int. Council Electr. Eng., Vol. 6, No. 1, pp. 160-165 (2016-7)