Thermal Transient Analysis of Asynchronous Machines Operating Under Supply Voltage Unbalance
| Autor: | Amel Adouni, Antonio J. Marques Cardoso |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Continuous operation
Thermal network Stator Computer science 020209 energy Thermal resistance 020208 electrical & electronic engineering 02 engineering and technology Finite element method law.invention Voltage amplitude Control theory law Thermal 0202 electrical engineering electronic engineering information engineering Induction motor Overheating (electricity) Voltage |
| Zdroj: | IECON |
| DOI: | 10.1109/iecon.2019.8926903 |
| Popis: | Under abnormal electrical supply conditions, induction motors can easily reach an overheating condition. A continuous operation under thermal stress significantly decrements the motors useful lifetime. In this paper a short-time thermal transient analysis, based on a Lumped Parameter Thermal Network (LPTN), is performed in order to evaluate the thermal behaviour of an asynchronous machine operating under supply voltage unbalance. Three types of supply unbalance are considered in this paper: unbalanced voltage amplitude, unbalanced phase, and a combination of both. The analytical model is used to estimate the temperature in different points of the stator. This model presents a reasonable compromise between simplicity, accuracy, and rapidity. The obtained results are validated using an experimental prototype. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|