The Basics
What is a 3 Phase Bridge Rectifier?
A 3 phase rectification circuit is the process of converting a 3 phase AC power supply into a DC power supply using diodes [1]. Similar to the single phase bridge rectifier, the diodes work by allowing current to flow in one direction, but restricting it in the opposite direction, allowing for the conversion of AC to DC within a circuit. To visually see how a 3 Phase Bridge Rectifier works, watch the video below [2]. On the left shows the circuit and how the alternating current moves through, with electrons represented as the red circles. On the right shows the outputs currents of each of the three phases as well as the DC output, shown in white.
Since we are using a 3 Phase motor within our generator system, we need to use this circuit in order to harvest the full power coming from our system.
Circuit Experimentation
In order to conduct a 3 Phase Bridge Rectifier experiment, we needed to connect this circuit to our 3 Phase AC Motor. This testing is documented here!
References
[1] “Three Phase Full Wave Diode Bridge Rectifier.” Electrical4U. [Online]. Available: https://www.electrical4u.com/three-phase-full-wave-diode-bridge-rectifier/
[2] Animations for Physics and Astronomy. “3 Phase Rectifying Circuit (HD).” Online video clip, YouTube, [Jun 29, 2011], https://www.youtube.com/watch?v=V6ZWYFTELQA
