Effect of q-axis Inductance on the Design of an Industrial Inset Permanent Magnet Synchronous Motor Drive with Restricted DC bus Voltage

Nair, Sandeep V; Bhawal, Shekhar; Hatua, Kamalesh; Prasad, Nvpr Durga; Reddy, D. Kishore

doi:10.1109/pedes.2018.8707766

Cited by 1 publication

(3 citation statements)

References 7 publications

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“…As load torque is fixed, current space vector i n will increase as obtained from (23), which will increase i qn since i dn is fixed, thus increasing δ. Knowing the change in δ, the change in δ ψ is obtained from (27)…”

Section: Changes In Current Angle Current and Flux Vector Due To Varmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The first attempt to analyse the effect of varying the q ‐axis inductance and fluctuating DC bus voltage on the performance of an inset PMSM is done in [27] taking into account its maximum torque capability, however, Nair et al . [27] do not present any analysis pertaining to the variations in the voltage dip margin of the inset PMSM operating at a particular torque and speed, if both inductances vary simultaneously. The major objective of this work is to consider the changes in the inductance values, from its initial designed value, due to manufacturing problems of the motor and also due to different test methods employed and their impact on the motor's performance indices.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of inductance variation on the operation of a synchronous reluctance motor connected to a weak grid

Ghosh¹,

Das²,

Bhuvaneswari³

2020

IET Electric Power Applications

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Changes in inductance profiles of motors from originally designed values are observed due to manufacturing defects and different measurement techniques adopted. This introduces changes in the magnitude of voltage dip that could be tolerated by a synchronous reluctance motor operating at a particular speed and torque while being connected to a weak grid. Since the voltage dip margin is dependent on the inductance of the motor, it changes as per the variations in inductance. This paper proposes a novel methodology to analyse the variations in the voltage dip margin as per the discrepancies in inductances when the motor drive is expected to deliver a particular speed and torque. A control strategy is also proposed to mitigate the ill‐effects of the voltage dip by changing the operating point of the motor. Mathematical expressions are derived showing the voltage dip margin for different degrees of variations in the inductances. It is observed that with reduction in the inductance value, the voltage dip margin increases with increased current, where the current still remains within the maximum current limit of the motor, while the motor is forced to deliver the same speed and torque. The proposed mathematical derivations are validated through simulations and experiments.

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Section: Changes In Current Angle Current and Flux Vector Due To Varmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of inductance variation on the operation of a synchronous reluctance motor connected to a weak grid

Ghosh¹,

Das²,

Bhuvaneswari³

2020

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

Effect of q-axis Inductance on the Design of an Industrial Inset Permanent Magnet Synchronous Motor Drive with Restricted DC bus Voltage

Cited by 1 publication

References 7 publications

Impact of inductance variation on the operation of a synchronous reluctance motor connected to a weak grid

Impact of inductance variation on the operation of a synchronous reluctance motor connected to a weak grid

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