TY - GEN
T1 - Determination of D and Q Axes Inductances for Steady State Model Analysis of PM Motor with Non-Ideal Machine Parameters
AU - Nanda, Binita
AU - Kumar, Praveen
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - The permanent magnet (PM) motors are widely used in electric vehicle (EV) application due to their high power density. Since EVs have wide operating speed range, it is necessary that the motors used in EVs satisfy this condition. One way to achieve the wide speed range operation in PM motors is by using field weakening. The field weakening capacity of the PM motors depends on the ratio of direct axis and quadrature axis inductances (Ld, Lq). The analytical models of PM motor assumes constant values of Ld and Lq. Since the B vs. H curve of the lamination material is non-linear, the Ld and Lq inductances vary as the stator current increases. This results in erroneous prediction of motor's behavior, especially in field weakening region. To overcome this, an improved analytical model is proposed in this work. Here, the inductances are made a function of current and the results obtained by the proposed model are compared with results obtained from FEA.
AB - The permanent magnet (PM) motors are widely used in electric vehicle (EV) application due to their high power density. Since EVs have wide operating speed range, it is necessary that the motors used in EVs satisfy this condition. One way to achieve the wide speed range operation in PM motors is by using field weakening. The field weakening capacity of the PM motors depends on the ratio of direct axis and quadrature axis inductances (Ld, Lq). The analytical models of PM motor assumes constant values of Ld and Lq. Since the B vs. H curve of the lamination material is non-linear, the Ld and Lq inductances vary as the stator current increases. This results in erroneous prediction of motor's behavior, especially in field weakening region. To overcome this, an improved analytical model is proposed in this work. Here, the inductances are made a function of current and the results obtained by the proposed model are compared with results obtained from FEA.
UR - http://www.scopus.com/inward/record.url?scp=85071286982&partnerID=8YFLogxK
U2 - 10.1109/ITEC.2019.8790609
DO - 10.1109/ITEC.2019.8790609
M3 - Conference contribution
AN - SCOPUS:85071286982
T3 - ITEC 2019 - 2019 IEEE Transportation Electrification Conference and Expo
BT - ITEC 2019 - 2019 IEEE Transportation Electrification Conference and Expo
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Transportation Electrification Conference and Expo, ITEC 2019
Y2 - 19 June 2019 through 21 June 2019
ER -