LISN - 人工电源网络

曾工 2021-9-6 11:53 电磁兼容网 1383 0

摘要: The latest revision of CISPR 25 is looking into various types of Artificial Networks used in today's automotive EMC.1. Artificial Network (AN): used for LV power supplies; 2. High Voltage Artificial N ...

The latest revision of CISPR 25 is looking into various types of Artificial Networks used in today's automotive EMC.
1. Artificial Network (AN): used for LV power supplies;
2. High Voltage Artificial Network (HV-AN): used for high voltage d.c. power supplies;
3. Direct Current charging Artificial Network (DC-charging-AN): used for d.c. power supplies;
4. Artificial Mains Network (AMN): used for a.c. power mains;
5. Asymmetric Artificial Network (AAN): used for signal/control port lines and/or wired network port lines.

1、人工网络（AN）：用于低压电源；

2、高压人工网络（HV-AN）：用于高压直流电源;

3、直流充电人工网络（DC-charge-AN）：用于直流充电电源;

4、人工电源网络 (AMN)：用于交流电电源；

5、非对称人工网络（AAN）：用于信号/控制端口线和/或有线网络端口线。

1. Artificial Network (AN)

Measurement ports of HV-AN(s) must be terminated with a 50 Ω load. The HV-AN impedance ZPB (tolerance ± 20 %) in the measurement frequency range of 0.1 MHz to 100 MHz. This table above shows the nominal impedance and upper/lower tolerances in tabular form. It is measured between the EUT HV and ground terminals with a 50 Ω load on the measurement port and with the supply line HV and ground terminals short circuited.

HV-AN 的测量端口必须端接 50 Ω 负载。 HV-AN 阻抗 ZPB（公差 ± 20 %）在 0.1 MHz 至 100 MHz 的测量频率范围内。上表以表格形式显示了标称阻抗和上/下容差。它是在 EUT HV 和接地端子之间测量的，测量端口上有 50 Ω 负载，并且电源线 HV 和接地端子短路。

2. High Voltage Artificial Network (HV-AN)

3. Direct Current charging Artificial Network (DC-charging-AN)

4. Artificial Mains Network (AMN)

Power mains must be applied to the vehicle through 50 μH/50 Ω AMN(s). The DC resistance between the ground of the AMN measurement port and the ground plane must not exceed 2,5 mΩ.

电源必须通过 50 μH/50 Ω AMN(s) 连接到车辆。 AMN 测量端口的接地与接地平面之间的直流电阻不得超过 2.5 mΩ。

4.1 0 Modified reference ground connection
The measurement of some types of equipment may require the insertion of an impedance in the reference ground conductor in the AMNs in 4.3 and 4.4, following the requirements of the related product publications. This is inserted at point X marked in the reference ground lead in Figures 5 and 6, respectively. The impedance to be inserted is either a 1 ,6 mH inductor, or an impedance conforming to the impedance requirement of 4.3 or 4.4, as appropriate for the
frequency range.

NOTE When considering the frequency range 9 kHz to 1 50 kHz, for safety reasons the 5 Ω resistor of the artificial mains V-network is not inserted.

4.1 0 修改的参考接地连接

根据相关产品出版物的要求，某些类型设备的测量可能需要在 4.3 和 4.4 中的 AMN 中的参考接地导体中插入阻抗。它分别插入图 5 和图 6 中参考接地引线中标记的 X 点。要插入的阻抗是 1 .6 mH 电感器，或符合 4.3 或 4.4 阻抗要求的阻抗，视情况而定频率范围。

注：当考虑 9 kHz 至 1 50 kHz 的频率范围时，出于安全原因，未插入人工电源 V 网络的 5 Ω 电阻器。