Power supply system of electric locomotive

• Main Authors: WANG FAXIAN, LIU GE, TAO LONG, ZHANG YUSI, GENG CONG, CHEN BIAO, MAI JIAYI, LI DIANWEI
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; LOCOMOTIVES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MOTOR RAILCARS; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; RAILWAYS; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

The invention discloses a power supply system of an electric locomotive. The power supply system comprises an energy storage element, a bidirectional AC/DC converter module, an auxiliary load, an auxiliary converter, a traction converter and a traction motor, the bidirectional AC/DC converter module is connected with the energy storage element, the auxiliary load and the auxiliary converter are respectively connected with the bidirectional AC/DC converter module, and the auxiliary converter, the traction converter and the traction motor are connected in sequence; when the electric locomotive is in a parking standby working condition, the energy storage element provides three-phase alternating current for the auxiliary load; when the electric locomotive is in the working condition of motor train in the garage, the energy storage element provides three-phase alternating current for the auxiliary converter through the bidirectional AC/DC converter module, the auxiliary converter provides direct current for the t