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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Aboushady, A. A. Ahmed, K. H. |
| Copyright Year | 2014 |
| Description | Author affiliation: Electrical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt (Ahmed, K. H.) || School of Engineering, University of Aberdeen, Aberdeen, UK (Aboushady, A. A.) |
| Abstract | This paper proposes a multi-loop controller for phase-controlled series-parallel resonant converter. Output voltage is solely measured for control and inner loop is used to enhance closed loop stability and dynamic performance compared to single-loop control. No additional sensors are used for inner loop variables. These are estimated using a Kalman filter, based on a linearized converter model. The advantage of this sensorless scheme is not only reducing the number of sensors but more significantly providing an alternative to sensing high frequency resonant tank variables which require high microcontroller resolution in real time. First, the converter non-linear large signal behavior is linearized using a state feedback based scheme. Consequently, the converter preserves its large signal characteristics while modeled as a linear system. Comparison is made between the most suitable state variables for feedback, according to a stability study. Finally, simulation and experimental results are demonstrated to validate the improved system performance in contrast with single-loop control. |
| Starting Page | 502 |
| Ending Page | 507 |
| File Size | 574391 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479937950 |
| DOI | 10.1109/ICRERA.2014.7016435 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-10-19 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Sensorless multi-loop control Voltage measurement Transfer functions Pi control Series-parallel resonant converter (SPRC) Phase control Stability analysis Kalman filters Voltage control Integrated circuit modeling Large signal model |
| Content Type | Text |
| Resource Type | Article |
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