Coordination control method and system for subway regenerative braking energy inversion absorption device

• Main Authors: CHEN LEI, HU LEILEI, RUI GUOQIANG, DING GAOHUI, ZHANG MING, QIU ZHILING, XU ZHONGYUAN, LI JIN, LIU DINGKUN, GE WENHAI, ZHAO KUN
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2018
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

The invention specifically relates to a coordination control method and system of a subway regenerative braking energy inversion absorption device. The coordination control method comprises the stepsthat a line energy feedback coordination control device receives the operation parameters of each inversion device in real time, whether a traction network voltage of a No.N traction substation exceeds a coordination control starting voltage Vct preset by the coordination control system or not is judged, and the coordination control over the adjacent traction substations of the No.N traction substation if the traction network voltage exceeds the coordination control starting voltage VCT is started. The coordination control includes first whether surplus capacity in the inverter devices of thetwo adjacent n-1 and n+1 substation exists or not is judged; the residual capacity is the difference between the rated power Pt of the inverter devices and the actual output power Po of the inverter devices at that time, and i