3 ms·
This recent paper from SEL engineers is interesting, it discusses potential issues with a rapid increase in high-current EV charging on existing power grids: h
by photochemsyn 3y ago
This recent paper from SEL engineers is interesting, it discusses potential issues with a rapid increase in high-current EV charging on existing power grids:
https://selinc.com/api/download/138271/ https://selinc.com/api/download/138271/
It also clarifies what is meant by an 'energy packet':
> "Simply stated: “Energy packets are precise measurements of energy exchanges, independent of system frequency and phase angles, and are computed and communicated at a fixed rate, with a common time reference” [5].
> "Power analysis software integrates 1,000 samples of 1 μs data into a 1 ms energy packet [5] [6]. The analysis calculates joules (watt seconds) of energy packets exchanged every 1 ms. For example, a 1-watt load consumes 1 millijoule of energy within a 1 ms period. Energy packets are calculated in the SI unit joules (J). Joules are converted into watthours (Wh) by a time-scaled 3,600 seconds per hour where 1 Wh equals 3,600 J."