Details
| Original language | English |
|---|---|
| Title of host publication | ICPE 2015-ECCE Asia |
| Subtitle of host publication | "Green World with Power Electronics" |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1129-1134 |
| Number of pages | 6 |
| ISBN (electronic) | 9788957082546 |
| Publication status | Published - 2015 |
| Event | 9th International Conference on Power Electronics: ECCE Asia, ICPE 2015-ECCE Asia - Seoul, Korea, Republic of Duration: 1 Jun 2015 → 5 Jun 2015 |
Abstract
This paper presents a novel approach based on current oversampling with low computational effort that significantly increases the signal-to-noise ratio with regard to sensorless control of permanent magnet synchronous machines at low and zero speed. The novel method is based on calculating arithmetic averages of all current samples taken during a period of pulse width modulation (PWM). This algorithm is implemented in a field programmable gate array (FPGA). Compared to a conventional current measurement with single sampling, the arithmetic average of the current samples has a much higher signal-to-noise ratio than the current samples themselves. The current derivative, which is used for sensorless control, is then calculated from the difference between two consecutive current averages. Experimental results validate the functionality of the novel approach.
Keywords
- current oversampling, FPGA-based control, self-sensing control, sensorless control
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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ICPE 2015-ECCE Asia: "Green World with Power Electronics". Institute of Electrical and Electronics Engineers Inc., 2015. p. 1129-1134 7167922.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Increased Signal-to-Noise Ratio of Sensorless Control Using Current Oversampling
AU - Weber, Bastian
AU - Wiedmann, Karsten
AU - Mertens, Axel
PY - 2015
Y1 - 2015
N2 - This paper presents a novel approach based on current oversampling with low computational effort that significantly increases the signal-to-noise ratio with regard to sensorless control of permanent magnet synchronous machines at low and zero speed. The novel method is based on calculating arithmetic averages of all current samples taken during a period of pulse width modulation (PWM). This algorithm is implemented in a field programmable gate array (FPGA). Compared to a conventional current measurement with single sampling, the arithmetic average of the current samples has a much higher signal-to-noise ratio than the current samples themselves. The current derivative, which is used for sensorless control, is then calculated from the difference between two consecutive current averages. Experimental results validate the functionality of the novel approach.
AB - This paper presents a novel approach based on current oversampling with low computational effort that significantly increases the signal-to-noise ratio with regard to sensorless control of permanent magnet synchronous machines at low and zero speed. The novel method is based on calculating arithmetic averages of all current samples taken during a period of pulse width modulation (PWM). This algorithm is implemented in a field programmable gate array (FPGA). Compared to a conventional current measurement with single sampling, the arithmetic average of the current samples has a much higher signal-to-noise ratio than the current samples themselves. The current derivative, which is used for sensorless control, is then calculated from the difference between two consecutive current averages. Experimental results validate the functionality of the novel approach.
KW - current oversampling
KW - FPGA-based control
KW - self-sensing control
KW - sensorless control
UR - http://www.scopus.com/inward/record.url?scp=84961885030&partnerID=8YFLogxK
U2 - 10.1109/ICPE.2015.7167922
DO - 10.1109/ICPE.2015.7167922
M3 - Conference contribution
AN - SCOPUS:84961885030
SP - 1129
EP - 1134
BT - ICPE 2015-ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th International Conference on Power Electronics
Y2 - 1 June 2015 through 5 June 2015
ER -