A High Frequency Injection Technique With Modified Current Reconstruction for Low-Speed Sensorless Control of IPMSMs With a Single DC-Link Current Sensor

Zhao, Jing; Nalakath, Shamsuddeen; Emadi, Ali

doi:10.1109/access.2019.2942148

Cited by 29 publications

(11 citation statements)

References 21 publications

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“…Where F N is the rated working frequency. It is shown from both (14) and FIGURE 4 that G θ e (k) , ω e (k) is locally convex near θ e (k) with any speed and current as long as A (θ e (k)) is not zero. Therefore the rotor position could be obtained by solving the optimization problem as long as the initial value ofθ e (k) is close to θ e (k).…”

Section: ) Medium and High Speedmentioning

confidence: 94%

“…FIGURE 4 shows the waveform of G θ e (k), ω e (k) calculated from (11) and (14) at position π/2 rad with 10% and 2% of the rated speed. Where F N is the rated working frequency.…”

Section: ) Medium and High Speedmentioning

confidence: 99%

“…The noise on current and voltage signals is easy to bring errors on the estimated position. In order to keep good estimation accuracy against noise, the amplitude of A (θ e (k)) in (14) has to be kept as large as possible. Therefore the high frequency current or voltage signal has to be injected and A (θ e (k)) has to be carefully analyzed.…”

Section: E the Injected High Frequency Signal At Zero And Low Speedmentioning

confidence: 99%

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Position Estimation Method of IPMSM in Full Speed Range by Simplified Quadratic Optimization

et al. 2020

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In this paper, a new full-speed-range position estimation method for the interior permanent magnet synchronous machine (IPMSM) is proposed. This method is designed for high power traction motor drives. In such application, variable speed operation from zero to high speed is desired. The objective of this paper is to obtain smooth position estimation in full speed range to guarantee high reliability of the motor control system. Firstly, a quadratic cost function based on the stator voltage equations is constructed. The rotor position in the full speed range is obtained by numerically solving an optimization problem. After obtaining the rotor position, the motor speed is then obtained through a phase-locked loop observer. In such a way, only one variable in the optimization problem has to be solved. Therefore, the numeric calculation burden is greatly reduced. The convexity of the quadratic cost function considering sampling noise as well as parameter mismatch is discussed in detail. Thus, the solvability and accuracy of the estimation result is guaranteed. At last, experiments on a traction motor are conducted to verify the effectiveness of the proposed position estimation method. INDEX TERMS IPMSM, Position sensorless control, Newton method, Full speed range.

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Section: ) Medium and High Speedmentioning

confidence: 94%

“…FIGURE 4 shows the waveform of G θ e (k), ω e (k) calculated from (11) and (14) at position π/2 rad with 10% and 2% of the rated speed. Where F N is the rated working frequency.…”

Section: ) Medium and High Speedmentioning

confidence: 99%

Section: E the Injected High Frequency Signal At Zero And Low Speedmentioning

confidence: 99%

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Position Estimation Method of IPMSM in Full Speed Range by Simplified Quadratic Optimization

et al. 2020

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“…The observability properties of the PMSM model, studied in [21]- [23], indicate that position estimation process at low speeds can only be performed using the insertion of highfrequency signals [24]- [31]. In the case of the surface PMSM (SPMSM), even with the insertion of high-frequency components, the position estimation can be a difficult task [32].…”

Section: A Pmsm Modelmentioning

confidence: 99%

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

et al. 2021

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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.

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“…This method is used also for permanent magnet AC servo systems associated with a sliding mode observer for rotor position estimation [17]. In [18,19] a high-frequency injection technique applied for low-speed sensorless control of interior permanent magnet synchronous machines with a single dc-link current sensor is proposed, based on a six-direction square wave high-frequency injection method to extend the voltage vector to the measurable region to achieve the three-phase current reconstruction without modifying the space vectors of the PWM. Another single current sensor method for PMSM three-phase current reconstruction is described in [20,21].…”

Section: Introductionmentioning

confidence: 99%

High-performance vector control without AC phase current sensors for induction motor drives: Simulation and real-time implementation

et al. 2021

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The main purpose of this paper is to develop a high-level performance, and low-cost current sensorless control strategy for Induction Motor (IM) drives. Therefore, a new phase-current regeneration method, for current sensorless vector control in induction motor drives is introduced. The idea is based on the reconfiguration of the Luenberger adaptive observer for currents estimation, using the information provided by the dc-link voltage sensor. The basis of the proposed control and the theoretical study of the modified adaptive observer are presented. Several simulation and experimental tests were performed on an induction motor of 1.1 kW working under different operating conditions. The obtained results prove and testify the relevance, workability, and practicability of the suggested currents sensorless vector control strategy.

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A High Frequency Injection Technique With Modified Current Reconstruction for Low-Speed Sensorless Control of IPMSMs With a Single DC-Link Current Sensor

Cited by 29 publications

References 21 publications

Position Estimation Method of IPMSM in Full Speed Range by Simplified Quadratic Optimization

Position Estimation Method of IPMSM in Full Speed Range by Simplified Quadratic Optimization

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

High-performance vector control without AC phase current sensors for induction motor drives: Simulation and real-time implementation

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