Takuto Ohsawa, Ryoichi Hara, Hiroyuki Kita. Operation scheduling method in an off-grid considering frequency violation probability caused by short-term variation. Energy Reports. 2024. 11. 5139-5148
Atsushi Hayashida, Hiroyasu Shirato, Ryoichi Hara. Proposal of a Diagnostic Method for State of Health of Reuse Batteries in Operation based on Current Sharing Ratio in Parallel. IEEJ Transactions on Power and Energy. 2024. 144. 5. 337-344
Riku Akasaka, RYOICHI HARA, Hiroyuki Kita, Shuhei Sugimura, Toshiharu Kurihara. Determination of Estimation Accuracy of Voltage Profiles Required for Proper Voltage Control by On-Load Tap Changer in Distribution Systems. Energies. 2023
Ayaka Nakamura, Ryoichi Hara, Hiroyuki Kita. Variable DC Voltage Threshold-Based Control Considering Emergency Mode-Switching for MTDC System. 2023 IEEE PES Innovative Smart Grid Technologies Latin America (ISGT-LA). 2023
Nobuaki Kawashima, Ryoichi Hara, Hiroyuki Kita, Hideo Ishii. Modeling of A Grid-Following Inverter Considering the relationship between PCC and POC Voltages. 2023 IEEE PES Innovative Smartgrid Techonologies Conference Asia (ISGT Asia). 2023