The grid frequency is measured every half second during 2020, in Tokyo, Japan, which is a part of 50 Hz area of Japan.<br>317 days are measured with the DEIF MTR-3.<div>49 days are not measured.<br>The MTR-3 has an accuracy of 10 mHz<br>There is one column with the UNIX timestamp in milliseconds and one column with the frequency measurement.<br>The dataset has a fixed sample rate of 0.5 s, and missing samples are replaced with NaN so there are 24*7200*366=63,244,800 rows in the set.</div>
Funding
EUDP PROJECT ACES - ACROSS CONTINENT ELECTRIC VEHICLE SERVICES (GRANT EUDP17-I-12499, WEBSITE: WWW.ACES-BORNHOLM.EU).