Detrimental Effect Elimination of Current Sensor Accuracy Uncertainty for High-Precision Position Sensorless Control of Interior Permanent Magnet Synchronous Motor Drives

Lu, Jiadong; Hu, Yihua; Liu, Jinglin; Ni, Kai; Wen, Huiqing

doi:10.1109/tie.2019.2938459

Cited by 9 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interior Permanent Magnet Synchronous Motor (IPMSM) has been widely used in electric vehicles due to its advantages of high power density, high efficiency, wide speed range, and low noise [1]- [3]. The information of rotor position and speed of IPMSM is essential to high accuracy control method of IPMSM, such as field oriented control (FOC) and direct torque control (DTC).…”

Section: Introductionmentioning

confidence: 99%

High Frequency Response Current Self-Demodulation Method for Sensorless Control of Interior Permanent Magnet Synchronous Motor

Li¹,

Liu²,

Gao

et al. 2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

In the sensorless control, high frequency (HF) rotating sinusoidal voltage injection method requires the position error compensation algorithms to eliminate the side effect of system delay. However, the implementation complexity of the system is increased and the optimization of dynamic performance is hard to realize. This paper presents a system delay-free rotor demodulation method without constructing assistive demodulation signal and using position error compensation algorithm. The improvement of position estimation accuracy and the simplification of rotor position demodulation are achieved in the proposed method. Firstly, the side effect of the system delay on HF induced current and rotor position estimation is analyzed in detail. Secondly, the idea of eliminating system delay angle in HF current is proposed based on vector operations. The positive-and negative-sequence components of HF current are used to demodulate rotor position information by a vector algorithm. Simultaneously, the system delay angle is offset in the demodulation process. Thirdly, the rotor position angle is precisely solved by a normalized PLL. Furthermore, the proposed method can also be applied for both HF rotating voltage injection and HF orthogonal square-wave voltage injection. The effectiveness and advantages of the proposed method are validated experimentally.

show abstract

Section: Introductionmentioning

confidence: 99%

High Frequency Response Current Self-Demodulation Method for Sensorless Control of Interior Permanent Magnet Synchronous Motor

Li¹,

Liu²,

Gao

et al. 2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

show abstract

Analytical prediction of the open‐circuit magnetic field for the V‐shaped interior PM machine by the improved subdomain method

Ren,

Sun,

Wang

et al. 2024

IET Electric Power Appl

View full text Add to dashboard Cite

The open‐circuit magnetic field of the V‐shaped interior PM (IPM) machine is predicted by the analytical method. The method is implemented following the basic principle of the subdomain method. The machine model is divided into five different regions, including rotor slot, magnetic barrier, air gap, stator slot, and stator slot opening. To perform the analytical prediction process in the polar coordinate system, these regions should be transformed into the appropriate subdomains. The last four regions can be transformed into the subdomains with the required shape based on the existing method. The rotor slot cannot be treated as a single subdomain, for the shape of which is irregular. Herein, the PM and vacuum region in the rotor slot is divided into several fan‐shaped subdomains. The division method is described clearly. Then, the boundary conditions alongside the interface between adjacent subdomains are derived based on function transformation. On this basis, the open‐circuit magnetic field of the IPM machine can be predicted. The magnetic field of the 6p/36 s V‐shaped IPM machine is obtained by the proposed method, finite element method simulation, and experiment, respectively. Additionally, the comparison results verify the accuracy and efficiency of the proposed method.

show abstract

Observers for High-Speed Sensorless PMSM Drives: Design Methods, Tuning Challenges and Future Trends

et al. 2021

View full text Add to dashboard Cite

Rotor position and speed estimation methods are consolidated to reduce the cost and volume of permanent magnet synchronous motor (PMSM) sensorless control drives while maintaining high performance. Advanced nonlinear algorithms require accurate design for precise estimation tracking throughout the entire PMSM operation range. This paper presents a broad review of the main high-speed estimation methods for sensorless PMSM drives. First, the stability constraints and design methodologies of the main estimation techniques presented in the literature are discussed. In the second part, it is investigated the new observer design trends, which are used under non-ideal conditions, such as robustness to distortions, the effects of parameter variation, sensorless parameter estimation, and low sampling-frequency-to-speed ratio operation. Future trends on the design of observers for high-speed sensorless PMSM drives are also discussed.INDEX TERMS High performance drives, permanent magnet synchronous motors, sensorless control, state observer design.

show abstract

Detrimental Effect Elimination of Current Sensor Accuracy Uncertainty for High-Precision Position Sensorless Control of Interior Permanent Magnet Synchronous Motor Drives

Cited by 9 publications

References 34 publications

High Frequency Response Current Self-Demodulation Method for Sensorless Control of Interior Permanent Magnet Synchronous Motor

High Frequency Response Current Self-Demodulation Method for Sensorless Control of Interior Permanent Magnet Synchronous Motor

Analytical prediction of the open‐circuit magnetic field for the V‐shaped interior PM machine by the improved subdomain method

Observers for High-Speed Sensorless PMSM Drives: Design Methods, Tuning Challenges and Future Trends

Contact Info

Product

Resources

About