Sag monitoring device multi-objective optimization configuration method considering user economic loss risk

• Main Authors: LIU HUILIN, SONG PENG, LEI YU, PANG BO, ZHANG JIAN, XIE LIFANG, YUAN WENQIAN, YUAN XIANG, WU YUPING, ZHANG XIAOHUA, LU YI, LIU LIANG, HUANG XIAOLONG, MA XINSHENG, MA SHANG, ZHANG CHAO, CAI WEI
• Format: Patent
• Language: Chinese; English
• Published: 01.10.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a sag monitoring device multi-objective optimization configuration method considering user economic loss risk. The method comprises the following steps: calculating the sag amplitude of a sensitive bus node when a fault occurs according to each sequence impedance of the bus node in a system so as to obtain a discrimination matrix and a line parameter matrix; calculating sag domains of different buses of the system by using a Chebyshev iteration method; calculating economic loss caused by sag due to short circuit of different lines; and forming the monitoring device multi-target optimization configuration model considering sag economic loss by taking the condition that sag can be completely observable as a constraint condition, taking the minimum number of sag monitoring devices as a first-level target and taking an area which causes serious economic loss of the user when sag occurs being covered in the maximum range as a second-level target. According to the method, the defect of incon