The invention discloses a testing
system for ring-digital and physical mixed real-time
power simulation. A digital
simulation work
station is connected with an RTDS
digital simulator through the
Ethernet, the RTDS
digital simulator is connected with an analog output interface card through fibers, and the analog output interface card is connected with a controller through hard wiring. The controller is connected with a four-quadrant
linear power amplifier through hard wiring, and the four-quadrant
linear power amplifier is connected with a power type
physical model through a cable conductor to output
voltage analog of the RTDS
digital simulator to the power type
physical model. The power type
physical model is connected with a current measurement sensor, the current measurement sensor is connected with the analog input interface card through hard wiring, and the analog input interface card is connected with the RTDS digital simulator through fibers to return the current of the power type physical model to the RTDS digital simulator.