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The regional government of Jakarta, has operated 52 units of electric buses with a battery capacity of 324 kWh, as part of an effort to reduce CO2 emissions from the transportation sector. The number ...of electric buses will continue to increase to 14,136 units in 2030. Electric bus operators built 15 units of charging stations (CS) with a capacity of 200 kW with CCS-2 plugs. The electrical power for the charging station is supplied from 4 units of transformers with a capacity of 1.25 MVA. Buses are charged alternately from 10 pm until around 03 - 04 am. From the results of power quality measurements for 1 week with 1 minute intervals, on the medium voltage side, it appears that the power factor is good (> 0.9) when the CS is operated, but when idle between 04 am – 09 pm, the power factor drops to 0.2 - 0.3 because the system only supplies transformers with an empty load. As a result of this operation, operators are subject to fines for excess kVArh. However the voltage fluctuations is still normal, with the voltage moves between the upper and lower limits of the medium voltage standard, (SNI 04-0227-2003).This paper evaluates the electrical system in this electric bus depot, power quality measurements and several inputs for system improvement including initial studies for smart charging implementation.続きを見る
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Mendeley出力
p2774-2782