A small-signal stability study for open-loop I-f control of permanent magnet synchronous machine drives

This paper deals with stability analysis of open-loop I-f control for permanent magnet synchronous machine (PMSM) drives. The nonlinear system dynamics is linearized at steady state working point for analyzing the local stability of open-loop I-f control for PMSM. The analysis shows that the open-loop I-f control is poorly damped but can achieve stable operation in a wide speed range without the mid-frequency instability issue that commonly exists for the open-loop V/f control. In fact, the open-loop I-f control can operate stably from zero to rated speed under different load conditions. Extensive simulation results are presented to verify the theoretical analysis.

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I-f control, PMSM, scalar control, Stability

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10.1109/CEEPE51765.2021.9475661

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Chen, D, Lu, K, Wang, D & Hinkkanen, M 2021, A small-signal stability study for open-loop I-f control of permanent magnet synchronous machine drives . in Proceedings of 4th International Conference on Energy, Electrical and Power Engineering, CEEPE 2021 ., 9475661, IEEE, pp. 405-409, International Conference on Energy, Electrical and Power Engineering, Chongqing, China, 23/04/2021 . https://doi.org/10.1109/CEEPE51765.2021.9475661

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https://urn.fi/URN:NBN:fi:aalto-2021120110503

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[article-cris] Sähkötekniikan korkeakoulu / ELEC

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A small-signal stability study for open-loop I-f control of permanent magnet synchronous machine drives

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