A Deadbeat PI Controller With Modified Feedforward for PMSM Under Low Carrier Ratio

Zhang, Zhijian; Long, Jing; Wu, Xuezhi; Xu, Wenzheng; Liu, Jingdou; Lyu, Gang; Fan, Zilian

doi:10.1109/access.2021.3075486

Cited by 16 publications

(4 citation statements)

References 26 publications

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“…The second category involves improved motor control methods. Common methods of this improvement include harmonic voltage compensation (HVC) [8,9], repetitive control [10,11], proportional resonance control (PR) [12] virtual vector modulation [13,14] Predictive control [15][16][17] etc. In ref.…”

Section: Introductionmentioning

confidence: 99%

Current harmonic suppression strategy for permanent magnet synchronous motor based on small phase angle resonant controller

Xie,

Xu,

Shen

et al. 2023

IET Electric Power Appl

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In this study, a small phase angle resonant controller (SPARC) is designed to suppress the current harmonics in a permanent magnet synchronous motor (PMSM). First, the analytical model of the PMSM is established. Second, a SPARC is designed to improve the problem of the overly large phase angle of the resonant controller at the resonant frequency. Third, the frequency error caused by the SPARC discretisation is compensated online. Finally, an experimental platform is built for the PMSM harmonic suppression, and the effectiveness and feasibility of the proposed method are verified through a comparison with the method of motor control using quasi‐resonant controller.

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Section: Introductionmentioning

confidence: 99%

Current harmonic suppression strategy for permanent magnet synchronous motor based on small phase angle resonant controller

Xie,

Xu,

Shen

et al. 2023

IET Electric Power Appl

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“…Accurate offline identification of stator resistance and inductance is necessary for proper tuning of the system controller [4,5], the position based on electromotive force (EMF) [6] or the based model [7], the parameters should be obtained before motor startup, otherwise, the performance of driver will be poor. Moreover, parameter identification at standstill is essential for applications with load machinery connected, since it is not permissible to make the rotor deviate from the initial position during estimating parameters [8].…”

Section: Introductionmentioning

confidence: 99%

A Simple Method for Stator Inductance and Resistance Estimation for PMSM at Standstill

Dilys

Stankevič

2022

IJRCS

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An accurate stator resistance and inductance are necessary for high-performance permanent magnet synchronous motor (PMSM) control. The stator resistance and inductance can be estimated during motor standstill operation. This study proposes a standstill estimation method for the determination of dq-axis inductances and resistance of a PMSM drive system fed by a conventional voltage source inverter (VSI). The proposed method estimates both inductance and the rotor's position using the same algorithm, and knowledge of its initial position is not required. The d- and q-axis inductances were estimated by applying three short-time voltage pulses and measuring phase current peak values. The stator's resistance is estimated by monitoring the exponential decay process of the direct axis current. The method was verified by simulation and experiments conducted on two different PM synchronous motors. A good agreement of simulation and experimental results was obtained. Moreover, the proposed method is relatively simple and can identify stator resistance and inductance at any motor load condition. Compared to the existing parameter estimation strategies, the proposed estimation scheme has a relatively faster estimation time. Additionally, it is shown that the method accounts for the dead-time effect as well.

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“…An extension considering resistance has been presented in [25]; however, without considering different inductances in the direct and quadrature axis. In essence, the TOC serves to generate current setpoints for low level controllers such as deadbeat [2,26].…”

Section: Introductionmentioning

confidence: 99%

Time-Optimal Current Control of Synchronous Motor Drives

2022

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We are concerned with the problem of fast and accurate tracking of currents in the general synchronous drive. The problem becomes complicated with decreasing available voltage, which is common in high-speed and field weakening regimes. The existing time-optimal controllers rely on a simplified model, ignoring stator resistance and differences in inductances. We derive a solution for the general model considering all parameters and show how the parameters affect the current trajectory. One simplifying assumption had to be made, but we show in simulation that it has a negligible impact on accuracy. The simplification allowed for the design of a feed-forward controller that has a low computational cost and can be easily implemented in realtime. We provide experimental validation of the controller on the developed IPMSM drive prototype of the rated power of 4.5 kW using conventional industrial DSP. The controller is compared to conventional PI and deadbeat solutions, demonstrating that the time-optimal controller can reach the required setpoint four times faster than the competitors at the field weakening regime of the drive. The proposed feed-forward control can be seen as a universal building block that can be combined with existing feedback controllers and observers and thus incorporated into existing control solutions.

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A Deadbeat PI Controller With Modified Feedforward for PMSM Under Low Carrier Ratio

Cited by 16 publications

References 26 publications

Current harmonic suppression strategy for permanent magnet synchronous motor based on small phase angle resonant controller

Current harmonic suppression strategy for permanent magnet synchronous motor based on small phase angle resonant controller

A Simple Method for Stator Inductance and Resistance Estimation for PMSM at Standstill

Time-Optimal Current Control of Synchronous Motor Drives

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