Three phase unbalanced load

Hello sir

I would like to simulate the three phase unbalance dynamic load changing with time in Matlab Simulink. I had found the "Three-phase Dynamic Load" block could let me implement the external input P and Q by time various, but it seems balance three phase. I also found the "Single-phase Dynamic Load" in the matlab example,but the block doesn't supply the external input. Is there any method could let me use the external input and also implement unbalanced three phase load?

sincerely

Ding Chan Tang

Answer 1

[Sabin]

The simplest way would be to use the Controlled Voltage Source block, this is available in both Simscape and Specialized Power Systems technologies of Simscape Electrical. Using Controlled Voltage Source is possible to control the voltage from Simulink, introducing the unbalance operation easily at any point in time.