BIDIRECTIONAL STEP-UP/STEP-DOWN DC/DC CONVERTER APPARATUS, RAILWAY COACH DRIVE CONTROL SYSTEM, RAILWAY FEEDER SYSTEM

摘要

Problem to be Solved To obtain a bidirectional buck boost DC-DC converter capable of causing power to flow bidirectionally between a primary side and a secondary side and being automatically controlled. Solution A bidirectional buck boost DC-DC converter includes a primary-side converting unit that is connected to an input/output terminal of the primary-side power supply and performs a power conversion operation, a secondary-side converting unit that is connected to an input/output terminal of the secondary-side power supply and performs a power conversion operation, a coupling unit that connects the primary-side converting unit and the secondary-side converting unit, and a control unit that controls the primary-side converting unit and the secondary-side power supply so that a value that is detected by and input from the primary-side converting unit, the secondary-side converting unit, or the coupling unit is consistent with a given command value.