Two-level two-direction current transformer and control method thereof

The present invention discloses a dual-stage bidirectional converter and a control method for the dual-stage bidirectional converter comprises a DC breaker, DC filter, DC / DC converters, DC / AC converters, AC filter, AC ⅰ contactor, AC contactor ⅱ, isolation transformer, the AC circuit breaker, DC / DC PWM driver circuit, DC / AC PWM drive circuit, and a man-machine interface control board, the structure is simple, low cost; the same time by the control method independently controlled DC / AC converter and DC / DC converter such that the modular structure of the entire device, without disturbing each other, the power distribution management greater degree while providing a convenient inspection and fault diagnosis system.