1. Pyramidal approximation for power flow and optimal power flow. Issue 18 (9th July 2020) Authors: Zhou, Bo; Fang, Jiakun; Ai, Xiaomeng; Yao, Wei; Chen, Zhe; Wen, Jinyu Journal: IET generation, transmission & distribution Issue: Volume 14:Issue 18(2020) Page Start: 3774 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗