Abstract
DC-link capacitors are an important part in the majority of power electronic converters which contribute to cost, size and failure rate on a considerable scale. From capacitor users' viewpoint, this paper presents a review on the improvement of reliability of dc link in power electronic converters from two aspects: 1) reliability-oriented dc-link design solutions; 2) conditioning monitoring of dc-link capacitors during operation. Failure mechanisms, failure modes and lifetime models of capacitors suitable for the applications are also discussed as a basis to understand the physics-of-failure. This review serves to provide a clear picture of the state-of-the-art research in this area and to identify the corresponding challenges and future research directions for capacitors and their dc-link applications.
Original language | British English |
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Article number | 6748007 |
Pages (from-to) | 3569-3578 |
Number of pages | 10 |
Journal | IEEE Transactions on Industry Applications |
Volume | 50 |
Issue number | 5 |
DOIs | |
State | Published - 1 Sep 2014 |
Keywords
- Ceramic capacitors
- Dc link
- Electrolytic capacitors
- Film capacitors
- Power converters
- Reliability