Timeline for how to compute the average power from AC generator
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 18, 2015 at 17:22 | answer | added | user39962 | timeline score: 1 | |
| Feb 18, 2015 at 11:30 | answer | added | Andy aka | timeline score: 2 | |
| Feb 18, 2015 at 8:30 | comment | added | Jinkyoo Park | I don't exactly understand "measuring a purely resistive load". It that mean measuring the voltage and the current without processing them through rectifier? | |
| Feb 18, 2015 at 8:28 | comment | added | Jinkyoo Park | The average power, computed using 60-sec power time series with 1000Hz sampling, fluctuates roughly 10 percent of its mean value. In other words, I obtained 10 average powers, they varies with the standard deviation of 10% mean. | |
| Feb 18, 2015 at 8:05 | comment | added | user57037 | I don't see why you cannot use RMS of the AC voltage. Note that even if you rectify it, you still need to compute RMS. Rectified AC is not really DC. If you add a filter capacitor after the rectifier, then I guess it will be "DC, with ripple," but the combination of rectifier + cap will present a different and somewhat nasty load to the generator. I think it is best to start by measuring a purely resistive load. | |
| Feb 18, 2015 at 7:40 | comment | added | user39962 | How variable have your readings been? And during what length of time? | |
| Feb 18, 2015 at 7:17 | history | asked | Jinkyoo Park | CC BY-SA 3.0 |