TY - GEN
T1 - Demagnetization Detection in PMSMs Using Search Coils Exploiting Machine's Symmetry
AU - Zapico, Marcos Orviz
AU - Reigosa, David Diaz
AU - Lee, Hyeon Jun
AU - Rafaq, Muhammad Saad
AU - Lee, Sang Bin
AU - Del Blanco, Fernando Briz
N1 - Funding Information:
1This work was supported in part by the Research, Technological Development and Innovation Programs of the Spanish Ministry of Science and Innovation, under grant PID2019-106057RB-I00.
Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - Magnet demagnetization in permanent magnet synchronous machines (PMSMs) can produce inadmissible performance degradation. Search coils (SCs) have been proven to be a viable option for its detection. Limitations of existing methods using SCs include the low sensitivity and the need of a large number of SCs. This paper proposes two methods for demagnetization detection of PMSMs using SCs which overcome these limitations. Zero-sequence voltage-based method relies on the zero-sequence voltage of three SCs electrically shifted 120 electrical degrees. On the other hand, differential voltage-based method computes the difference between the voltage induced in SCs with the same electrical angle, i.e., both SCs are electrically shifted 360 1 1 This work was supported in part by the Research, Technological Development and Innovation Programs of the Spanish Ministry of Science and Innovation, under grant PID2019-106057RB-I00
AB - Magnet demagnetization in permanent magnet synchronous machines (PMSMs) can produce inadmissible performance degradation. Search coils (SCs) have been proven to be a viable option for its detection. Limitations of existing methods using SCs include the low sensitivity and the need of a large number of SCs. This paper proposes two methods for demagnetization detection of PMSMs using SCs which overcome these limitations. Zero-sequence voltage-based method relies on the zero-sequence voltage of three SCs electrically shifted 120 electrical degrees. On the other hand, differential voltage-based method computes the difference between the voltage induced in SCs with the same electrical angle, i.e., both SCs are electrically shifted 360 1 1 This work was supported in part by the Research, Technological Development and Innovation Programs of the Spanish Ministry of Science and Innovation, under grant PID2019-106057RB-I00
KW - Permanent magnet
KW - demagnetization
KW - differential voltage
KW - search coil
KW - zero-sequence voltage
UR - http://www.scopus.com/inward/record.url?scp=85123370340&partnerID=8YFLogxK
U2 - 10.1109/ECCE47101.2021.9595756
DO - 10.1109/ECCE47101.2021.9595756
M3 - Conference contribution
AN - SCOPUS:85123370340
T3 - 2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
SP - 4460
EP - 4467
BT - 2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th IEEE Energy Conversion Congress and Exposition, ECCE 2021
Y2 - 10 October 2021 through 14 October 2021
ER -
