Dynamic performance analysis of high frequency signal injection based sensorless methods for IPM synchronous motors

Alaei, Ahmadreza; Lee, Dong-Hee; Ahn, Jin-Woo; Nejad, Sayed Morteza Saghaeian

doi:10.1109/pedstc.2018.8343788

Cited by 8 publications

(6 citation statements)

References 13 publications

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“…The other methods, used at standstill and low-speed values, are based on machine saliency, called high-frequency (HF) signal injection based method [2,[4][5][6][7][8][9][10][11][12][13][14]. Sensorless approaches based on HF signal injection are basically classified, according to their signal waveform, into sinusoidal and square-wave injection methods [5,9,10]. However, both methods can be roughly classified into rotating injection in the stationary reference frame, pulsating injection in the estimated synchronous reference frame, and pulsating anti-clockwise signal injection in the estimated synchronous reference frame with anticlockwise rotation at twice the rotor electrical angular speed [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Reduction of high‐frequency injection losses, acoustic noise and total harmonic distortion in IPMSM sensorless drives

Alaei

Nejad

Gieras

et al. 2019

IET Power Electronics

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In saliency-based sensorless methods, the amplitude of the injected voltage cannot be reduced to levels below its specified value because of the reasonable signal required for the noise ratio. Increasing the injection signal amplitude increases not only the acoustic noise and high-frequency (HF) losses, but also the total harmonic distortion (THD) of the output voltage and current ripples. A new pulsating semi-impulse signal injection method based on the current sensing technique is proposed for the sensorless control of interior permanent magnet synchronous motors (IPMSMs). The proposed method aims to control the motor speed and reduce some problems due to the HF signal injection involving acoustic noise, HF losses and THD of the output voltage. Taking into account the premium injection angle, these problems are reduced significantly as compared to those in conventional square-wave methods. Hence, the proposed method increases the sensorless driver efficiency and its application scope. The effectiveness of the proposed method is then confirmed with computer simulation and experimental tests. Experimental comparisons at the same injection frequency and injection effective voltage show that the performance of the proposed method is beneficial. All experiments were performed on a IPMSM with V-shaped PMs which is used in a refrigerator compressor.

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Section: Introductionmentioning

confidence: 99%

“…The other methods, used at standstill and low‐speed values, are based on machine saliency, called high‐frequency (HF) signal injection based method [2, 4–14]. Sensorless approaches based on HF signal injection are basically classified, according to their signal waveform, into sinusoidal and square‐wave injection methods [5, 9, 10].…”

Section: Introductionmentioning

confidence: 99%

Reduction of high‐frequency injection losses, acoustic noise and total harmonic distortion in IPMSM sensorless drives

Alaei

Nejad

Gieras

et al. 2019

IET Power Electronics

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“…Moreover, based on technical information from reputable manufacturers of industrial inverters [27][28][29], injection voltage levels up to 25% of the available voltage are considered acceptable in industry (i.e., up to 80 V, in this case). Extending the survey with references from scientific literature [9,19,23,[30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46], reveals that the injection level required for robust position estimation and sensorless control is widely variable, depending on many factors such as measurement noise, inverter and motor parameters, non-idealities and on the desired dynamics. For this reason, it is difficult to identify the minimum HF voltage which ensures robust sensorless operation, unless experiments on a specific system and application have been carried out.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, based on technical information from reputable manufacturers of industrial inverters [27][28][29], injection voltage levels up to 25% of the available voltage are considered acceptable in industry (i.e., up to 80 V, in this case). Extending the survey with references from scientific literature [9,19,23,[30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46], reveals that the injection level required for robust It is also important to notice that HF injection methods are usually applied only at low-speed and stand-still. In fact, at medium-and high-speed fundamental wave-based methods can be successfully adopted, which mostly exploit estimated back-EMF or flux-linkage [46][47][48][49][50][51][52][53][54].…”

Section: Resultsmentioning

confidence: 99%

Self-Adaptive High-Frequency Injection Based Sensorless Control for Interior Permanent Magnet Synchronous Motor Drives

et al. 2019

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An auto-tuning and self-adaptation procedure for High Frequency Injection (HFI) based position and speed estimation algorithms in Interior Permanent Magnet Synchronous Motor (IPMSM) drives is proposed in this paper. Analytical developments show that, using conventional approaches, the dynamics of the high-frequency tracking loop varies with differential inductances, which in turn depend on the machine operating point. On-line estimation and adaptation of the small signal gain of the loop is proposed here, allowing accurate auto-tuning of the sensorless control scheme which does not rely on a priori knowledge of the machine parameters. On-line adaptation of Phase-Locked Loop (PLL) gains and of the injected voltage magnitude is also possible, leading to important advantages from the performance, loss and acoustic point of view. The theoretical basis of the method has been introduced first and the main concept demonstrated by means of simulations. Implementation has been carried out using the hardware of a commercial industrial drive and two Interior Permanent Magnet Synchronous Motors, namely a prototype and an off-the-shelf machine. Experimental tests demonstrate the feasibility and effectiveness of the proposal.

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“…High frequency (HF) injection has been used over the past 30 years for a wide range of motor types including permanent magnet synchronous motors (PMSMs) [19][20][21], switched reluctance motors (SRMs) [22], brushless DC motors (BLDCs) [23], and induction motors [24]. This family of sensorless algorithms takes advantage of the saliency of an electrical machine to identify the angle of its rotor.…”

Section: High Frequency Injectionmentioning

confidence: 99%

Active noise control by means of high frequency injection in electric motors

Skoulaxinos,

Wheeler,

Vakil

2024

IET Electric Power Appl

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Machine acoustics is an important area of research impacting the quality and comfort of human life. With increased levels of electrification and the wider use of electric motors, the contribution of motor drives towards quieter acoustic systems becomes increasingly important. This paper presents a novel acoustic improvement method involving the use of acoustic waves generated from High Frequency Injection to perform Active Noise Control. Although High Frequency Injection has been used widely in the domain of sensorless motor control, its acoustic generation process has been so far perceived as a negative by‐product. This paper presents the analysis and experimental results from the application of the proposed method to the Helicopter Electro‐Mechanical Actuation System. Considering the extensive use of motor drives in a number of industries, the proposed practice of High Frequency Injection Active Noise Control can have a significant impact to future applications.

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Dynamic performance analysis of high frequency signal injection based sensorless methods for IPM synchronous motors

Cited by 8 publications

References 13 publications

Reduction of high‐frequency injection losses, acoustic noise and total harmonic distortion in IPMSM sensorless drives

Reduction of high‐frequency injection losses, acoustic noise and total harmonic distortion in IPMSM sensorless drives

Self-Adaptive High-Frequency Injection Based Sensorless Control for Interior Permanent Magnet Synchronous Motor Drives

Active noise control by means of high frequency injection in electric motors

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