Variable electrical load in a network

I want to simulate a transmission line in a netwrok. An electrical load is connected to this line. However, the electrical load that I need is not constant but it varies with time. In the library there is only a constant load and a dynamic load. The behaviour of the dynamic load is not what i was expected as for constant input it gives different results than the simple load. Any ideas how can I simulate a variable load????

Answer 1

[Pourya Alinezhad]

simultaneously use constant load and variable one in a submodel,see if you can construct your load model with linear or none linear combining of this two...