The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper deals with the design and analysis of high speed 100,000 rpm blushes DC (BLDC) motor for centrifuge. To determine the specifications, the proposed motor is designed using a loading ratio method based on the rated speed and power. First, the design results of the investigated 3kW 100,000 rpm BLDC motor are compared with the simulation results by a 2-D finite element method (FEM), to confirm...
This paper presents a novel constructive three-phase six-slotted permanent magnet linear synchronous motor (PMLSM) based on the approach of combinational iron-cored primary. In order to develop a small scale, large thrust and high thrust performance slotted PMLSM, a construct of separated three two-slotted armature iron-cores for each phase winding is proposed. The influence of couple between iron-cores...
A 12/10 flux-switching permanent magnet motor (FSPM) is described. Qualitative analysis of magnetic circuit indicates that a connection between stator segments is benefit to motor operation. From the basic principle of flux-weakening speed-extension operation, weaken magnetic factor and speed-extension multiple are calculated. The analysis results show that this kind of motor has higher flux-weakening...
Rare earth magnets of high-energy products have been widely used to improve the efficiency, as well as the power and torque per unit weight, of permanent magnet machines. In addition to limited resources and high prices, the rare earth magnet may risk irreversible demagnetization during field weakening or malfunctioning in machine operation. To solve this problem, this research investigates the anti-demagnetization...
Rare-earth magnets of high-energy products have been widely used to improve the efficiency, as well as the power and torque per unit weight, of permanent-magnet machines. In addition to the drawbacks of limited resources and high prices, the rare-earth magnet may risk irreversible demagnetization during field weakening or malfunctioning in machine operation. To solve this problem, we investigate the...
Two magnetic fields produce radial force on rotor when the difference of their pole pair numbers is 1. Based on this principle, this paper introduces the bearingless motor with a single set of 5-phase windings. The MMF waveform produced by multiphase windings is analyzed, based on which the winding configuration of 5-phase bearingless motor is introduced. The two needed magnetic fields are produced...
Taking a six-phase ten-pole fault tolerance permanent magnetic machine (FTPMM) as an example, its chief elements of wingding self inductance, such as: magnetizing inductance, harmonic leakage inductance, slot opening leakage inductance and slot inner leakage inductance, are got under analyzing the distribution of magnetic flux, and the large inductance is accomplished by adding the leakage of slot...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.