Regional power grid dynamic reactive power optimization method based on interior point decoupling method and linear mixed integer programming method

• Main Authors: ZHANG JIE, ZHU AIZHEN, LIU SHENGCHUN, YANG JUN, HU XIANWEN, WANG HENGFENG, WANG HUABIAO, HE YANJIAO, WANG CANGHAI, ZHENG YUNYAO, RAN YAO, XIAO MING, MA YONGFEI, YAN WEI, WANG XIANMIN
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2021
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; GENERATION; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a regional power grid dynamic reactive power optimization method based on an interior point decoupling method and a linear mixed integer programming method. The method comprises the following steps: 1) establishing a dynamic reactive power optimization model; 2) relaxing discrete variables in the dynamic reactive power optimization model into continuous variables, and constructing a relaxed dynamic reactive power optimization model; 3) resolving the relaxation dynamic reactive power optimization model by using an interior point decoupling method to obtain a continuous solution of the switching group number of the grounding capacitor and the gear of the on-load voltage regulation transformer; 4) constructing a linear mixed integer optimization model by using the continuous optimal solution of all variables, and setting a search space of discrete variables; and 5) resolving the linear mixed integer optimization model to obtain the switching group number of the grounding capacitor and the