System for implementing continuous co-phase flexible alternating current traction power supply and operation mode therefor

An operation mode of a system for implementing continuous co-phase flexible alternating current traction power supply, comprising:

• based on the system for implementing continuous co-phase flexible alternating current traction power supply, converting three-phase alternating current into single-phase alternating current, and supplying the single-phase alternating current to a bus of a flexible traction substation;
• system for implementing continuous co-phase flexible alternating current traction power supply, comprising at least one flexible traction substation and electric sections, wherein:
• each flexible traction substation comprises a first power inlet line and a second power inlet line, each of which is coupled to one end of a corresponding power inlet line breaker, the other end of the corresponding power inlet line breaker is coupled to a primary side of one set of traction transformer, and a secondary side of the one set of traction transformer is coupled to a plurality of static power converters (SPCs) via a plurality of breakers, respectively, wherein the SPCs corresponding to each set of traction transformer are coupled in parallel with each other to convert three-phase alternating current into single-phase alternating current and are respectively coupled to a bus of the flexible traction substation through outlet line breakers, wherein the SPCs are configured to adjust and control output power;
• one feeder line is provided between the bus of the flexible traction substation and each of an up-track line and a down-track line of an overhead contact system, and each feeder line is provided with one up-to-net breaker thereon;
• the up-track line and the down-track line of the overhead contact system are respectively provided with the electric sections therein, and each of the electric sections is coupled in parallel with one breaker which is turned on in a normal operation mode;
• and
• a configuration manner of the electric sections comprises arranging one section post between every two adjacent flexible traction substations, and arranging the electric sections inside the section post;
• or arranging the electric sections inside the flexible traction substation without arranging any section post, and arranging the electric sections on a same side of two feeder lines between the bus of the flexible traction substation and the overhead contact system, or respectively on both sides of the two feeder lines, or between the two feeder lines;
• wherein an operation mode of two sets of traction transformers in any one flexible traction substation comprises a parallel operation mode, in the parallel operation mode, the two sets of traction transformers operate simultaneously, and each of the SPCs is coupled to the two sets of traction transformers, in case of a fault of one set of traction transformer or a fault of an inlet line of one set of traction transformer, power outputs of respective flexible traction substations are coordinated, to support a flexible traction substation associated with a traction transformer with the fault using a flexible traction substation operated normally.