Practical Simulation Methods Considering Characteristic Variations of Wires for CISPR 25 Conducted Emission

Author(s):  
H. Sugo ◽  
Y. Sarai ◽  
B. P. Nayak ◽  
H. Muniganti ◽  
D. Gope ◽  
...  
2013 ◽  
Vol 433-435 ◽  
pp. 940-944
Author(s):  
Qun Hou ◽  
Ya Ping Jin ◽  
Yi Fan Zhou

Window lifter motor is one of the potential electromagnetic interference (EMI) sources in automobile. Based on the research on the principle of Window lifter motor and the generation mechanism of EMI, its EMI characteristics are tested and analyzed. The EMI suppression methods are proposed. By comparing two filters methods,it shows that the designed filter suppresses the electromagnetic interference more effectively. Its conducted emission and radiated emission are lower than the second lever limits of CISPR 25-2007+.


Author(s):  
Hyun Gwi Hong ◽  
Beom Jin Choi ◽  
Eun Ha Kim ◽  
Seung Real Ryu ◽  
Jae Hyun Lee
Keyword(s):  

2014 ◽  
Vol 893 ◽  
pp. 742-746
Author(s):  
Long Huang ◽  
Fang Ping Yu ◽  
Tai Long Liu ◽  
Peng Li ◽  
Qi Dou Wu ◽  
...  

DC-DC buck converter has been more widely used in automotive electronics because of its advantage of high efficiency and small size. However, it is one of the main causes of the conducted emission and radiation noise. The working principle and the mechanism of DC-DC buck converter which generate conducted emission and radiation noise in different frequency were analyzed. Then, two methods were proposed to reduce the low frequency radiated emission. One is weakening the AC current value of the inductor current through increasing the value of the output inductor, the other is reducing the loop area by adding the output filter, and both of the methods were verified by comparative test. Finally, the two schemes were used in designing the On-board controller, and it passed the radiated emissions (ALSE method) according to the international standard CISPR 25-2008.


Author(s):  
Yudhistira ◽  
Dwi Mandaris ◽  
Yoppy ◽  
Hutomo Wahyu Nugroho ◽  
Prayoga Bakti ◽  
...  

Gangguan elektromagnetik berupa conducted emission noise yang ditimbulkan oleh inverter pada sistem photovoltaic (PV) off-grid telah berhasil dikarakterisasi. Noise yang merambat pada jalur konduksi dihasilkan dari fenomena switching inverter untuk proses konversi daya dari listrik searah (DC) menjadi arus bolak balik (AC). Standar IEC 62920:2017 dan CISPR 25:2016 digunakan untuk mengukur noise yang dihasilkan oleh inverter di sisi DC. Pengukuran conducted emission noise pada inverter dilakukan dalam tiga kondisi, yakni kondisi tanpa beban, terhubung dengan beban lampu pijar 60 W, dan terhubung dengan beban lampu pijar beserta dimmer untuk variasi daya. Pengukuran dilakukan pada lima buah inverter dengan kapasitas daya dan jenis keluaran (output) yang berbeda-beda, yaitu 200 W, 300 W, dan 700 W untuk tegangan keluaran modified sine wave serta 500 W dan 1.000 W untuk tegangan keluaran pure sine wave. Hasil pengukuran menunjukkan bahwa pada kondisi inverter terhubung dengan beban lampu pijar beserta dimmer, inverter model pure sine wave 500 W dan 1.000 W memiliki peak noise level yang cukup rendah dan berpotensi lebih sedikit untuk menimbulkan gangguan elektromagnetik di sisi DC.


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