Abstract The aim of this paper is to assess the harmonic emission from fast charging stations at both the low-order and high-order harmonics. New three-phase effective power quantities are developed at both the low-order (harmonics below 40th order) and high order (harmonics above 40th order) and are used to quantify such harmonic impact. Chargers from two different manufacturers are used in this study and the real measurement are performed at fast charging stations in Canada. The results have shown that chargers from different manufacturers may contribute differently in terms of the harmonic current distortion levels reaching 18% at the system level. Furthermore, the time-frequency spectrum of the current obtained from chargers of different manufacturers are different at both the low-order and high-order harmonic current distortion. The results have also shown that the new three-phase power quantities defined in this work are useful in identifying the chargers with high contribution to both the low-order and the high-order harmonics distortion/interference by separating the power quantities defined in the IEEE Standard 1459-2010 into several power quantities at the low-order harmonic (ranging from 2nd to 39th harmonic order or below 2.4 kHz) and the high-order harmonics (beyond 40th harmonic order or beyond 2.4 kHz).

中文翻译：

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存在快速充电站时的低次和高次谐波失真

摘要 本文的目的是评估快速充电站在低次和高次谐波下的谐波发射。在低阶（低于 40 阶谐波）和高阶（高于 40 阶谐波）上开发了新的三相有效功率量，并用于量化此类谐波影响。本研究使用了来自两个不同制造商的充电器，并在加拿大的快速充电站进行了实际测量。结果表明，不同制造商的充电器在系统级谐波电流失真水平达到 18% 方面的贡献可能不同。此外，不同厂家充电器获得的电流时频频谱在低次谐波电流畸变和高次谐波电流畸变上是不同的。