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| Content Provider | IET Digital Library |
|---|---|
| Author | Godbehere, Jonathan Hopkins, Andrew Drury, David Mellor, Phil |
| Abstract | This paper presents a low-cost approach to experimentally characterise the effect of the inverter supply on the losses in an electrical machine. The set-up comprises of representative subassemblies of the stator and winding, referred to as ‘motorettes’, and a single phase, fast switching silicon-carbide-based converter. The sub-assembly-based thermal analysis has been shown to be a time and cost-effective method to examine winding loss, over a range of operating conditions. In addition to the slot to stator thermal resistance and capacitance. This provides critical information for thermal model calibration and produces more accurate thermal and loss predictions of the full machine behaviour. A test arrangement has been devised to replicate the magnetic excitation of the electrical machine stator during normal operation. This builds upon previous techniques, to allow iron loss to be investigated. Through multiple tests using DC, AC, and PWM-AC supplies, a 20% increase in iron loss is observed due to PWM effects. |
| Starting Page | 4195 |
| Ending Page | 4199 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 17, Jun (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/17 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8196 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-01-22 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | A.C. Machine Accurate Thermal Loss Predictions Capacitance Cost-effective Method Electric Machines Electrical Machine Stator Inverter Supply Iron Loss Loss Low-cost Approach Machine Behaviour Machine Insulation Machine Testing Normal Operation Operating Condition PWM Effect PWM Invertors PWM Supply-induced Loss PWM-AC Supplies Representative Subassemblies Silicon Compound Silicon-carbide-based Converter Single Phase Stator Thermal Resistance Stators Sub-assembly Experiments Sub-assembly-based Thermal Analysis Thermal Analysis Thermal Model Calibration Thermal Resistance Winding Loss |
| Content Type | Text |
| Resource Type | Article |
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