Three-phase multi-switch Boost type rectifier circuit

Three-phase multi-switch Boost type rectifier circuit: The turn-off switching tube on each bridge arm is equipped with an anti-parallel diode, which can realize the bidirectional flow of energy. Take phase A as an example to illustrate: when the switch tube in the lower arm of phase A is turned on, the energy storage inductor of phase A stores energy; when it is turned off, the energy stored in the phase A inductor flows to the DC side through the diode of the upper arm. Release magnetic energy. Therefore, broadly speaking, this bridge PWM reversible rectifier topology is still a boost structure. The six-switch Boost PWM rectifier is characterized by a simple structure and is suitable for realizing active inversion. Therefore, it is currently the most actively used and researched type, and is also the most widely used among multi-switch PWM rectifier circuits.