RMS, MEAN - initial input

Currently am designing buck converter and i need to find the the RMS and average values of my waveform.

i found RMS and Mean models. but whenever i key in the initial input, the output the mean or RMS will be initial input values.

http://www.mathworks.com/help/physmod/sps/powersys/ref/rms.html http://www.mathworks.com/help/physmod/sps/powersys/ref/mean.html

can someone guide me along

Answer 1

[Sabin]

This seems to be a parameterization issue. It must be ensured that one cycle of simulation has completed to get the correct results. The block uses a running average window. First cycle of the simulation the output will be the specified initial condition.