Application of IEC 61850 to the communication of a large-scale photovoltaic power generation operation - Web service and conformance test -. - Hiroyuki Yusa; Tetsuo Otani; Noriyuki Senke; Eiji Ohba; Yutaka Arai; Yoshimichi Okuno; Takanori Hayashi; Yasuyuki Hoshi (SmartGridComm, 2011)