Nano Power Inverter - Roll Your Own Style

Author	Message
wiseguy Guru Joined: 21/06/2018 Location: Australia Posts: 1156	Posted: 02:38am 05 Jul 2022         poida said   I think I know what you are observing when interrupted slow stops are then changed to a inverter start. The code as it stands will immediately interrupt the slow stop ramp down when it gets the command to start. This will have a sharp discontinuity in the power output. It will go from a fraction of full power to ZERO in one step. And then start ramping up to AC output setpoint. Thanks for the code update I will try it hopefully later today. The point I was attempting to make must have become clouded in my description. What I was trying to illustrate: The interrupted soft stop was not a criticism of any sort or even a drawback etc. After an interrupted soft stop the inverter never "growled" when ramping up again despite any sudden truncation. It was a "feature" I was highlighting to help in finding the code difference between that and a full stop. The full stop with a full ramp down and then a new restart always growls on the ramp up.  This was intuitively the reverse of what I would have expected. "The code as it stands will immediately interrupt the slow stop ramp down....etc etc". I assume this is an instant interrupt or is the state of the switch checked at a certain point in the code execution and that generates the interrupt - trying to understand how it never growls when you would expect at least some random remanence issues (on re-ramp) if it was totally asynchronous. Edited 2022-07-05 14:15 by wiseguy