capacity calculation of shunt active power filters for electric vehicle charging stations based on harmonic parameter estimation and analytical modeling
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ID: 256383
2014
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Abstract
The influence of electric vehicle charging stations on power grid harmonics is becoming increasingly significant as their presence continues to grow. This paper studies the operational principles of the charging current in the continuous and discontinuous modes for a three-phase uncontrolled rectification charger with a passive power factor correction link, which is affected by the charging power. A parameter estimation method is proposed for the equivalent circuit of the charger by using the measured characteristic AC (Alternating Current) voltage and current data combined with the charging circuit constraints in the conduction process, and this method is verified using an experimental platform. The sensitivity of the current harmonics to the changes in the parameters is analyzed. An analytical harmonic model of the charging station is created by separating the chargers into groups by type. Then, the harmonic current amplification caused by the shunt active power filter is researched, and the analytical formula for the overload factor is derived to further correct the capacity of the shunt active power filter. Finally, this method is validated through a field test of a charging station.
| Reference Key |
zhou2014energiescapacity
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|---|---|
| Authors | ;Niancheng Zhou;Jiajia Wang;Qianggang Wang;Nengqiao Wei;Xiaoxuan Lou |
| Journal | acs combinatorial science |
| Year | 2014 |
| DOI |
10.3390/en7085425
|
| URL | |
| Keywords | Keywords not found |
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