Effect of Saturation on Field Oriented Control of the New Designed Reluctance Synchronous Motor

Rafajdus, Pavol; Hrabovcová, Valéria; Lehocký, P.; Makyš, Pavol; Holub, Filip

doi:10.3390/en11113223

Cited by 8 publications

(6 citation statements)

References 16 publications

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“…The number of squirrel-cage bars of the reference motors is the same, 42 bars. Therefore, considering the number of squirrel-cage bars, the number of barriers is designed to be three [8]. The detail specifications of the reference motors are shown in Table 1.…”

Section: Specification Of Reference Modelsmentioning

confidence: 99%

“…Induction motors (IMs) account for 70% of industrial motors because of their simple structure and low manufacture cost [1][2][3]. However, IMs have the secondary copper loss that limits the improvement in their efficiency [7][8][9][10]. Therefore, to replace IMs, new types of motor are being studied to improve the efficiency such as line-start synchronous reluctance motors (LS-SynRMs).…”

Section: Introductionmentioning

confidence: 99%

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Study on Line-Start Permanent Magnet Assistance Synchronous Reluctance Motor for Improving Efficiency and Power Factor

Kim

Park

Liu³

et al. 2020

Energies

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In order to improve the efficiency, a line-start synchronous reluctance motor (LS-SynRM) is studied as an alternative to an induction motor (IM). However, because of the saliency characteristic of SynRM, LS-SynRM have a limited power factor. Therefore, to improve the efficiency and power factor of electric motors, we propose a line-start permanent magnet assistance synchronous reluctance motor (LS-PMA-SynRM) with permanent magnets inserted into LS-SynRM. IM and LS-SynRM are selected as reference models, whose performances are analyzed and compared with that of LS-PMA-SynRM using a finite element analysis. The performance of LS-PMA-SynRM is analyzed considering the position and length of its permanent magnet, as well as its manufacture. The final model of LS-PMA-SynRM is designed for improving the efficiency and power factor of electric motors compared with LS-SynRM. To verify the finite element analysis (FEA) result, the final model is manufactured, experiments are conducted, and the performance of LS-PMA-SynRM is verified.

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Section: Specification Of Reference Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on Line-Start Permanent Magnet Assistance Synchronous Reluctance Motor for Improving Efficiency and Power Factor

Kim

Park

Liu³

et al. 2020

Energies

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show abstract

“…The shape of arrowed rotor bars with a middle ring is also often found [10,11]. The rotor slots can be open, semi-closed, or fully closed [12][13][14]. The variability of the rotors, in general, makes the identification of failures difficult and is quite insufficient in multi-series production of cast rotors.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Two Sensors in Offline Diagnosis of Squirrel-Cage Rotors of Asynchronous Motors

2021

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In the manufacture squirrel-cage rotors of asynchronous motors, a high standard of quality is required in every part of the production cycle. The die casting process usually creates porosity in the rotor bars. This most common defect in the rotor often remains hidden during the entire assembly of the machine and is usually only detected during final testing of the motor, i.e., at the end of the production process. This leads to unnecessary production costs. Therefore, the aim is to conduct a continuous control immediately after the rotor has been cast before further processing. In our paper, we are interested in selecting a suitable method of offline rotor diagnostics of an asynchronous motor that would be effective for these needs. In the first step, the selection of the method and its integration into the overall manufacturing process is carried out. The arrangement of the sensors and their calibration is then simulated on a 2D Finite Element Model of the rotor. The proposed offline measurement procedures and technologies are finally validated by testing measurements on a rotor that simulates the most frequently occurring faults. A test system is also developed that provides the operator continuous information about the running rotor measurements and makes it easier to evaluate the quality of the cast rotor by means of graphical visualization of the faults.

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“…With various types of motors, the three-phase squirrel-cage induction motor (SCIM) is the most used, because of its simple structure, line-start ability, robustness, and low manufacturing cost. However, it is evident that the induction motor (IM) does not meet high efficiency due to rotor copper loss [4][5][6]. Due to a global trend on improving the efficiency of electric motors, there is ongoing research that focuses on this area.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Rotor Design of Line Start Synchronous Reluctance Motor for IE4 Efficiency and Improving Power Factor

Kim

Park

et al. 2020

Energies

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As international regulations of motor efficiency are strengthened, the line-start synchronous reluctance motor (LS-SynRM) is being studied to improve the efficiency of the electrical motor in industrial applications. However, in industrial applications, the power factor is also an important performance index, but the LS-SynRM has poor power factor due to the saliency characteristic. In this paper, the rotor design of LS-SynRM is performed to improve the efficiency and power factor. First, the barrier design is performed to improve the efficiency and power factor using the response surface method (RSM). Second, the rotor slot design is performed according to the length of bar for synchronization. Lastly, the rib design is performed to satisfy the power factor and the mechanical reliability. The final model through the design process is analyzed using finite element analysis (FEA), and the objective performance is satisfied. To verify the FEA result, the final model is manufactured, and experiment is performed.

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Effect of Saturation on Field Oriented Control of the New Designed Reluctance Synchronous Motor

Cited by 8 publications

References 16 publications

Study on Line-Start Permanent Magnet Assistance Synchronous Reluctance Motor for Improving Efficiency and Power Factor

Study on Line-Start Permanent Magnet Assistance Synchronous Reluctance Motor for Improving Efficiency and Power Factor

Utilization of Two Sensors in Offline Diagnosis of Squirrel-Cage Rotors of Asynchronous Motors

A Study on the Rotor Design of Line Start Synchronous Reluctance Motor for IE4 Efficiency and Improving Power Factor

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