期刊
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
卷 19, 期 4, 页码 6182-6195出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TII.2022.3207773
关键词
Modulation; Voltage control; Current control; Support vector machines; Synchronous motors; Stators; Vehicle dynamics; Model predictive control (MPC); overmodulation; quadratic programming; surface-mounted permanent magnet synchronous motors (SPMSMs)
This article presents two computationally efficient methods for selecting the optimal modulated voltage that can achieve superior dynamic performance for surface-mounted permanent magnet synchronous motors (SPMSMs). The first method is a simple overmodulation method based on common-mode-saturation injection (CMSI), which has very low computational cost and can easily find the voltage vector on the boundary. The second method is a quadratic program (QP) based deadbeat (DB) control, which formulates the control problem as a constrained QP and solves it with an efficient solver based on an active-set method. Simulative and experimental investigations are conducted to demonstrate the effectiveness of both methods for an SPMSM.
This article presents two computationally efficient methods for selecting the optimal modulated voltage that can achieve superior dynamic performance for surface-mounted permanent magnet synchronous motors (SPMSMs). Specifically, when an SPMSM suffers a large reference or sudden load change, the controller might command a voltage reference, which is beyond the range of voltages that a modulator can synthesize. In such cases, the transient behavior of the motor can deteriorate when the demanded voltage is not properly limited to the voltage boundary. To address this issue, a simple overmodulation method based on common-mode-saturation injection (CMSI) is proposed. This strategy comes with very low computational cost and can easily find the voltage vector on the boundary, which is nearest to the reference voltage vector. Moreover, an alternative control method, referred to as quadratic program (QP) based deadbeat (DB) control, is proposed that also ensures optimal system performance during overmodualtion. According to this strategy, the control problem is formulated as a constrained QP, which is solved with an efficient solver based on an active-set method. Finally, extensive simulative and experimental investigations for an SPMSM are presented to demonstrate the effectiveness of the proposed overmodulation methods.
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