Title :
Frequency model for differential-mode conducted EMI prediction in three-phase PWM inverter
Author :
Chen, Wei ; Chen, Pingping ; Feng, Limin ; Chen, Henlin ; Qian, Zhaoming
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
This paper presents a simple frequency-domain model to predict the differential-mode (DM) conducted electromagnetic interference (EMI) noise in three-phase PWM inverter. The main DM EMI source in the three-phase inverter includes two currents: the load current and the reverse recovery current of the diode. The amplitude spectrum of the DM EMI source is analyzed and modeled by current source in the frequency-domain. The parasitic components are identified using network analyzer. The calculated DM EMI result is compared with the experimental data. It is verified that the model presented in this paper can be used to predict the DM EMI generated by the three-phase PWM inverter.
Keywords :
PWM invertors; constant current sources; diodes; electromagnetic interference; frequency-domain analysis; interference suppression; network analysers; amplitude spectrum; current source; differential-mode EMI; diode; electromagnetic interference noise; frequency-domain model; load current; network analyzer; reverse recovery current; three-phase PWM inverter; Computational modeling; Delta modulation; Diodes; Electromagnetic interference; Filters; Frequency domain analysis; Integrated circuit noise; Predictive models; Pulse width modulation; Pulse width modulation inverters;
Conference_Titel :
Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005
Print_ISBN :
0-7803-9208-6
DOI :
10.1109/IAS.2005.1518859
