Normalized env history

[Webbah]

It seems like currently the normalized env outputs are stored in the history if env.is_normaized == True. That leads to 'wrong' env plots showing the normalized values but not the real-world (simulated) measured:

Values should be [15,-15] A.

Re-normalize before stored to hist?

https://github.com/upb-lea/openmodelica-microgrid-gym/blob/0ae67d388bb9f6c3e92af18641fe766bd99fe7bf/openmodelica_microgrid_gym/env/modelica.py#L318-L320

[stheid]

The hotfix would obvoiusly be:

outputs = self.net.augment(self._state, self.is_normalized) 
outputs = np.hstack([outputs, self.measure(outputs)]) 
raw = self.net.augment(self._state, False) 
raw = np.hstack([raw, self.measure(outputs)]) 
self.history.append(raw) 

another way would be to denormalize the data on rendering. I am not sure if that is all that elegant however.

I think we should think critically what we actually want to remember. i think remembering the unnormalized data is ok as long we make sure to return the normalized data. Hence the elegant solution would be along the lines of the first hotfix (maybe a little more DRY though).

[Webbah]

Hotfix does result in a 100 Hz current.

• suggestion is that in the hotfix-denormalization the oscillator is executed