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Quasi - two-level converter operation strategy for overvoltage mitigation in long cable applications
Quasi - two-level converter operation strategy for overvoltage mitigation in long cable applications
- Source :
- 2019 IEEE International Electric Machines & Drives Conference (IEMDC).
- Publication Year :
- 2019
- Publisher :
- IEEE, 2019.
-
Abstract
- This paper focuses on a Quasi-Two-Level (Q2L)converter topology and its use in long cable application, where overvoltage at the motor terminals due to wave reflection threatens the motor and cable insulation. Two operation strategies are proposed to mitigate such undesired effect, by taking advantage of the Q2L multilevel structure. In the first one, the drive works without any output filter, which results in a compact converter design, as capacitance is minimized, while enabling the use for longer cable lengths than those in applications where a $dv/dt$ filter is commonly used. In the second one, a modified $dv/dt$ filter is used in combination with the Q2L operation, when the first operation would require too high accuracy in the converter control. In both of the cases, the aim is to provide a compact solution that does not require the footprint and cost of multilevel converters, nor that of sine filters, and can thus be deployed in long cable applications with particular space constraints.
- Subjects :
- Computer science
business.industry
020209 energy
020208 electrical & electronic engineering
Electrical engineering
Topology (electrical circuits)
02 engineering and technology
Converters
Capacitance
law.invention
Footprint (electronics)
Synchronization (alternating current)
Capacitor
Overvoltage
Filter (video)
law
0202 electrical engineering, electronic engineering, information engineering
business
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2019 IEEE International Electric Machines & Drives Conference (IEMDC)
- Accession number :
- edsair.doi...........4f13587bb685530a49ba726c557e0d72
- Full Text :
- https://doi.org/10.1109/iemdc.2019.8785123