Simulate Load Change using Simulink

I need to simulate 3phase system with 3ph rectifier (using 3 bridge diode) which have a single phase load (using series RLC branch) at DC side of the rectifier. How can i simulate load change at that system ? I have tried using 2 parallel load (load 1 = initial load, load 2 = final load) and using 1phase breaker at each branch to change the load. But when i want to change the load with opening the load 1 breaker and close the load 2 breaker, the load 1 is still connected so the load become parallel not changing form load 1 to load 2 as i want. So what is my fault or maybe you have another idea to simulate a load change simulation with initial load (R=40ohm, L=40mH) and the final load is (R=30ohm, L=30mH) ? Please. Thanks.

Answer 1

[Sabin]

The easy way to change the load is to use a Variable Resistor block. Then the resistance can be easily changed over time.