Title :
EMI Behavioral Models of DC-Fed Three-Phase Motor Drive Systems
Author :
Bishnoi, H. ; Mattavelli, Paolo ; Burgos, Rolando ; Boroyevich, Dushan
Author_Institution :
Center for Power Electron. Syst. (CPES), Virginia Tech, Blacksburg, VA, USA
Abstract :
Behavioral electromagnetic interference (EMI) models based on Thevenin equivalents are proposed for a dc-fed three-phase motor drive system. Both common-mode (CM) and differential-mode (DM) noise models are developed to accurately predict the total EMI noise in accordance with the DO-160 standards for aerospace applications. Beyond the switching frequency of the drive, the CM noise model is found to behave like a two-port linear network and is shown to predict changes in the input-side EMI due to any changes in the load-side parameters or vice versa. Simplified one-port behavioral models for DM noise are then used to predict the total noise at both input and output side of the motor drive. Such models can be very useful in system level EMI analysis and also in understanding how EMI filters and harnesses affect the overall EMI in a motor drive system. The models run in the frequency domain and are validated with experiments up to 30 MHz.
Keywords :
electromagnetic interference; frequency-domain analysis; motor drives; noise measurement; CM noise models; DM noise models; DO-160 standards; EMI filters; Thevenin equivalents; behavioral EMI models; behavioral electromagnetic interference models; common-mode noise models; dc-fed three-phase motor drive system; differential-mode noise models; input-side EMI; load-side parameters; overall EMI; simplified one-port behavioral models; switching frequency; system level EMI analysis; total EMI noise; two-port linear network; Approximation methods; Electromagnetic interference; Impedance; Integrated circuit modeling; Load modeling; Noise; Predictive models; Behavioral model; common mode (CM); conducted emissions; differential mode (DM); motor drives;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2013.2284436