A Newly Designed VSC-Based Current Regulator for Sensorless Control of PMSM Considering VSI Nonlinearity

Liu, Zhaohua; Nie, Jie; Wei, Hua‐Liang; Chen, Lei; Li, Xiaohua; Zhang, Hongqiang

doi:10.1109/jestpe.2020.3033037

Cited by 20 publications

(2 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, Q is a symmetric positive definite matrix, and the motor parameters are independent of the rotor speed. From this, it can be proved that when the linear compensation matrix C is (24), the transfer matrix G(s) of the linear forward channel is strictly positive and real.…”

Section: Selection Of Linear Compensatormentioning

confidence: 92%

“…In addition, as a high-performance control method of PMSM, the core of FOC technology is to regulate the excitation current id and torque current iq, respectively. The currents id and iq can be calculated from the three phase currents ia, ib, and ic (which can be obtained by current sensors) by clark/park transformation [24]. Traditionally, the proportional-integral (PI) controller is usually utilized in many industrial applications because of their simple implementation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Switched PI Control Based MRAS for Sensorless Control of PMSM Drives Using Fuzzy-Logic-Controller

Liu

Nie

Wei

et al. 2022

IEEE Open J. Power Electron.

Self Cite

View full text Add to dashboard Cite

With the use of sensorless control strategy, mechanical position sensors can be removed from the gearbox, so as to decrease the maintenance costs and enhance the system robustness. In this paper, a switching PI control based model reference adaptive system (MRAS) observer using Fuzzy-Logic-Controller (FLC) is introduced for sensorless control of permanent magnet synchronous motor (PMSM) drives. The main work and innovation of this paper include: 1) A disturbance observer based voltage compensation method is proposed to solve the problems of voltage distortion in voltage source inverter (VSI) fed PMSM systems. 2) A double closed-loop FLC is designed for speed and current control. The response performance of speed regulation and the accuracy of the command voltage are improved, and the difficulty of manual adjustment of control parameters is avoided. 3) A sensorless control strategy of a switching PI control based MRAS observer is proposed for stator resistance tracking. By setting different thresholds, the proposed MRAS observer can choose the appropriate PI adaptive mechanism based on the amplitude of the current error variable, which can improve the accuracy of resistance estimation and improve the dynamic performance of sensorless control. 4) The experimental results are given to verify the availability of the proposed scheme.

show abstract

Section: Selection Of Linear Compensatormentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%