Measuring structure functions of power devices in inverters
This paper proposes the measuring of structure function from power devices on-board induction motor drives and multilevel converters. It puts forward the issues and methodology related to on-board measurement of the cooling curve and derivation of the structure function during idle times in inductio...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Published: |
Elsevier
2017
|
| Online Access: | https://eprints.nottingham.ac.uk/43222/ |
| _version_ | 1848796639496503296 |
|---|---|
| author | Aliyu, Attahir Murtala Castellazzi, Alberto |
| author_facet | Aliyu, Attahir Murtala Castellazzi, Alberto |
| author_sort | Aliyu, Attahir Murtala |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper proposes the measuring of structure function from power devices on-board induction motor drives and multilevel converters. It puts forward the issues and methodology related to on-board measurement of the cooling curve and derivation of the structure function during idle times in induction motor drives for maintenance purposes. The structure function uses the thermal resistances and capacitances in the Cauer form to identify changes in the device structure. The advantage of the structure function is that it does not only reveal the value but also the location of the thermal resistance and capacitance in the heat flow path. The novelty in this work is the methodology used to achieve the measurement of the cooling curve and obtaining the structure function despite issues related to freewheeling current due to energy stored as a result of motor inductance. A detailed description of the measurement circuit is presented. The possibility of applying this technique to multilevel converters in different application is also elaborated. |
| first_indexed | 2025-11-14T19:51:11Z |
| format | Article |
| id | nottingham-43222 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:51:11Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-432222020-05-04T18:41:25Z https://eprints.nottingham.ac.uk/43222/ Measuring structure functions of power devices in inverters Aliyu, Attahir Murtala Castellazzi, Alberto This paper proposes the measuring of structure function from power devices on-board induction motor drives and multilevel converters. It puts forward the issues and methodology related to on-board measurement of the cooling curve and derivation of the structure function during idle times in induction motor drives for maintenance purposes. The structure function uses the thermal resistances and capacitances in the Cauer form to identify changes in the device structure. The advantage of the structure function is that it does not only reveal the value but also the location of the thermal resistance and capacitance in the heat flow path. The novelty in this work is the methodology used to achieve the measurement of the cooling curve and obtaining the structure function despite issues related to freewheeling current due to energy stored as a result of motor inductance. A detailed description of the measurement circuit is presented. The possibility of applying this technique to multilevel converters in different application is also elaborated. Elsevier 2017-04-12 Article PeerReviewed Aliyu, Attahir Murtala and Castellazzi, Alberto (2017) Measuring structure functions of power devices in inverters. Microelectronics Reliability . ISSN 0026-2714 http://www.sciencedirect.com/science/article/pii/S0026271417300872 doi:10.1016/j.microrel.2017.03.036 doi:10.1016/j.microrel.2017.03.036 |
| spellingShingle | Aliyu, Attahir Murtala Castellazzi, Alberto Measuring structure functions of power devices in inverters |
| title | Measuring structure functions of power devices in inverters |
| title_full | Measuring structure functions of power devices in inverters |
| title_fullStr | Measuring structure functions of power devices in inverters |
| title_full_unstemmed | Measuring structure functions of power devices in inverters |
| title_short | Measuring structure functions of power devices in inverters |
| title_sort | measuring structure functions of power devices in inverters |
| url | https://eprints.nottingham.ac.uk/43222/ https://eprints.nottingham.ac.uk/43222/ https://eprints.nottingham.ac.uk/43222/ |