Abstract
Common-mode (CM) choke saturation is a practical problem in CM filter applications. It is generally believed that the leakage inductance of CM chokes makes the core saturated. This paper analyzes two new mechanisms for CM choke saturation due to CM voltage, and these mechanisms are verified in experiment. CM choke saturation is particularly important for motor drive systems, which have a high CM voltage and comparably higher stray grounding capacitance. A model is established to describe the relationship between the CM voltage and the volume of the CM magnetic components. According to the analysis, line impedance stabilization networks (LISNs) play an important role in the design of CM magnetic components.
| Original language | English |
|---|---|
| Article number | 5420004 |
| Pages (from-to) | 1905-1914 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 25 |
| Issue number | 7 |
| DOIs | |
| State | Published - 2010 |
Keywords
- CM voltage
- Common-mode (CM) inductor
- volt-second
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