This invention discloses a bidirectional AC /
DC converter, belonging to the field of power conversion technology. It includes a first
transformer and multiple switches. The opposite-named terminal of the primary winding of the first
transformer is connected to the first terminal of the first switch. The opposite-named terminal of the secondary winding of the first
transformer is connected to the first terminal of the second switch. The second terminal of the second switch is connected to the first terminal of the third switch. The second terminal of the third switch is connected to the same-named terminal of the secondary winding of the first transformer. The opposite-named terminal of the secondary winding of the first transformer is connected to the first terminal of the fourth switch. The second terminal of the fourth switch is connected to the first terminal of the fifth switch. The second terminal of the fifth switch is connected to the same-named terminal of the secondary winding of the first transformer. This bidirectional AC /
DC converter enables bidirectional
energy transfer. When the DC side is a photovoltaic module, it can provide reactive power to the
capacitor on the photovoltaic module side, absorb reactive power on the photovoltaic module side, and adjust the
power factor.