| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC-DC converter that easily switches from powering to regeneration or switches from regeneration to powering.SOLUTION: The DC-DC converter is so configured that a voltage-source power converter is on a primary side of a transformer and that a current-source power converter is on a secondary side of the transformer. A controller generates a first manipulated variable on the basis of a value of voltage between input and output ends of the voltage-source power converter, generates a second manipulated variable on the basis of a value of voltage between input and output ends of the current-source power converter, and generates a command value for PWM control or PFM control on the basis of the first manipulated variable, the second manipulated variable and input/output currents at the input and output ends of the current-source power converter or voltage-source power converter. The controller controls operation of the voltage-source power converter and current-source power converter on the basis of the command value. |
