An integrated-starter-generator (ISG) is a key component of hybrid electric vehicles (HEVs), which starts the engine as a motor and generates electric power as a generator according to operational conditions and system requirements [1,2,3].At present, conventional permanent magnet (PM) brushless machines with PMs in the rotor are …high efficiency motors with power-dense permanent magnet rotor materials Arnold manufactures Recoma® 35E, the world’s most power-dense samarium cobalt material available on the market today. This innovative magnetic material is critical to boosting performance in the aerospace, automotive and motorsport industries, providing superior …In their work, a range of electric machine options are considered and it is concluded that a synchronous machine with a permanent magnet (PM) rotor will be the most efficient and power dense. In addition to applications in turbocharging, Gerada [ 3 ] highlight an increasing demand for high-speed electrical machines in flywheel energy …More specifically, the rotor itself contains permanent magnets, which are either surface-mounted to the rotor lamination stack or embedded within the rotor …For permanent-magnet (PM) machines, only specific stator MMF harmonic, known as working harmonic, interacts with the PM field to produce continuous electromagnetic torque . Lower and higher order stator MMF spatial harmonics rotating at different speeds to the rotor, will bring about unwelcome effects, such as eddy current …The actual power capacity of permanent magnet synchronous machine for electric vehicles is usually limited by rotor temperature, ... Usually, measuring the temperature of the rotor permanent magnet is very difficult by equipping sensors to rotate the body directly. Some common techniques include slip rings, ...Sep 17, 2020 · Differently from the surface-mounted permanent magnet (PM) synchronous motors, there is an asymmetry of the reluctance between the d-axis and the q-axis, in which saliency can be used to produce reluctance torque in addition to the magnet torque, thus improving the efficiency. In addition, the IPMSMs provide more rotor robustness as magnets are ... Consequent-pole permanent magnet (CPM) machines have considerable potential for low-cost applications because they can improve the permanent magnet (PM) utilization ratio. However, the phase back electromotive force (EMF) of CPM machines with Ns/(mt) = odd (t is the greatest common divisor of the stator slot number Ns and the …Measure Skewing Angle. MagScope software makes it easier than ever to measure the skewing angle of skewed permanent magnet rotors, enabling the detection of skewing angle deviations. The right figure shows an example of the step skew on an IPM (Interior Permanent Magnet) rotor, represented in a cross-section graph with automatic zero …The prototype machine is an axial-flux permanent-magnet machine with a two-rotor–one-stator configuration. The nominal power of the machine is 300 W and the nominal rotational speed is 500 rpm. The magnets are neodymium iron boron magnets. Twelve magnets are mounted on the rotor surface and 12 magnets buried on the rotor (Fig. 12a).1,416 permanent magnets stock photos, 3D objects, vectors, and illustrations are available royalty-free. See permanent magnets stock video clips. Experimental electric generator on white background, consists of copper coils and magnets. A generator is a device that converts mechanical energy to electrical energy for use in an external circuit. An interior permanent magnet synchronous motor (IPMSM) with ‘VV—’ shape rotor topology structure is proposed. The established two-dimensional (2D) parameterized finite element analysis (FEA) models are used to analyze and compare the output average torque, torque density, air-gap flux density and back electromotive force …1 Introduction. Nowadays, high-speed surface-mounted permanent magnet synchronous machines (SPMSMs) are becoming more and more common due to their simple structure, high-power density and high efficiency [1-3].The rare-earth permanent magnets (PMs) are widely applied in the high-speed SPMSMs owing to their high …Sep 2, 2020 · In the PMSG that has not been the CT reduction technique, the rotor permanent magnets (PMs) have an increasing effect on the CT since each PM has the same relative position with reference to the stator slots . The CT in each PM is in the same phase as the others, so, the harmonic component of each is added together then, CT has become higher. Oct 14, 2002 · The most important magnet layouts in rotors of hybrid permanent-magnet synchronous machines (PMSM) for electric vehicles are compared in a variety of characteristics. The effect of different rotor designs on the vehicle performance and energy consumption is evaluated for a small battery electric vehicle (BEV) for different drive cycles. Permanent Magnet Motors - External Rotor. The W series external-rotor permanent magnet motor combines the high strength alloy material with the patented one-piece fan …The research is devoted to the investigation of NdFeB permanent magnet (PM) based synchronous generators with non-overlapping concentrated windings. The rotor of such …reluctance, thus creating a magnetic pull to rotate the rotor. PM motors are driven by the interaction of the magnetic field generated by the permanent magnets and the rotating magnetic field generated by the stator winding. The characteristics of these high-speed motors are shown in Table1[61]. As can be seen from Table1, the high-speed …The nite element results show that the modular rotor permanent magnet ux switching machine has greater torque than salient rotor FEFSM, HEFSM, and PMFSM at the rated load with signicantly less weight than the others. Keywords Back EMF · Electromagnetic torque · Field Excitation · Hybrid Excitation · Modular rotor PMFSM · Permanent magnet Mahle says the ability to tune and change the parameters of the rotor’s magnetism instead of being stuck with what a permanent magnet offers has allowed its engineers to achieve efficiencies ...Electromagnetic interaction between the rotor permanent magnet and the stator slots is quite large. (1000 N simulated value for this motor). The air-gap needs to be as small as 1 mm. Fig. 4a shows the single disc of rotor with 9° skewed permanent magnets. The machine rotors were constructed by using mild-steel.an interior permanent magnet (PM) synchronous motor into a hybrid motor. This hybrid technology uses a conventional induction rotor cage to bring the motor up to its slip speed just like any traditional induction motor. Once at slip speed, the powerful interior magnets pull the rotor into true synchronous speed with the rotating magnetic field.This paper overviews high-speed permanent magnet (HSPM) machines, accounting for stator structures, winding configurations, rotor constructions, and parasitic effects. Firstly, single-phase and three-phase PM machines are introduced for high-speed applications. Secondly, for three-phase HSPM machines, applications, advantages, and …(PMSM) into the market. Permanent magnet synchronous machines have been applied to servo drives for a long time already, and nowadays, there are quite large permanent magnet synchronous machines also in industrial use. In wind mill generators, the development has currently been in the direction of permanent magnet machines. All motors run on the principle that interacting magnetic fields in the rotor (the rotating component) and the stator (the stationary component) generate motion. …Increasing industrial development puts forward high requirements for the performances of stator permanent magnet (PM) machines, such as torque density and efficiency. The paper proposes a new dual stator PM machine based on field modulation theory (DSPMM), which employs the intermediate rotor participating in the …Non−Magnetic Rotor Core Rotor Magnets Rotor Pole Pieces Figure 2: Axial View of a Flux Concentrating Motor The geometry of one type of internal magnet motor is shown (crudely) in Figure 2. The permanent magnets are oriented so that their magnetizationis azimuthal. They are located between wedges of magnetic material (the pole pieces) in …This paper presents an analysis of torque pulsation with respect to the rotor rib shape in an interior permanent magnet motors (IPMs) and the type of magnet materials. The effects of three parameters, the angle and length of the flux barrier and the residual flux density of the PM, are studied using the response surface methodology. …the permanent magnet Once the permanent magnet is inserted into a slot of the rotor core, it generates a stress-point within the core as a result of centrifugal force. If the permanent magnet slips out of the slot within the rotor core during operation of the drive motor as a result of this centrifugal force, the permanent magnet, the rotor core, or …Nov 12, 2020 · A double-sided permanent magnet rotor with a single stator [2, 3] can offset the axial attraction and increase the output power at the cost of an increased weight. The double-sided permanent magnet rotor design can also reduce bearing wear and noise problem compared with a single-sided structure, which thus increases the generator reliability. the permanent magnet Once the permanent magnet is inserted into a slot of the rotor core, it generates a stress-point within the core as a result of centrifugal force. If the permanent magnet slips out of the slot within the rotor core during operation of the drive motor as a result of this centrifugal force, the permanent magnet, the rotor core, or …Apr 1, 2012 · In fact, as weâ ll explore, the major difference between PMAC and permanent magnet DC motors is that the faster a PMACâ s rotor spins, the higher back-EMF voltage is generated. Magnetic micro-rotary motors are difficult to build without using magnetic materials or induction 27 because it is difficult to provide reliable sliding electrical contacts to convey currents to the rotor. One form of rotary magnetic motor is similar to that of Figures 6.2.3 and 6.2.4, except that the motor pulls into the segmented gaps a ...When considering the mechanical design of these rotors, SPM rotors allow higher rotational speeds than IPM rotors and will be the focus of this article. The …Magnet Rotors. Magnetic rotor, or permanent magnet rotor is the non stationary part of a motor. The rotor is the moving part in an electric motor, generator and more. Magnetic rotors are designed with multiple poles. …Electric machines with permanent magnet rotors are becoming increasingly popular due to the high power density that they offer relative to other configurations. Where the speed of rotation is high, the magnets are typically mounted on the surface of the rotor and retained by an outer sleeve. In the literature, a variety of analytical models have …Arnold produces high performance permanent magnet motor components and sub-assemblies for aerospace and defense, industrial, automotive, and motorsport applications, such as: KERS — Kinetic Energy Recovery System, which includes a composite sleeved RECOMA® SmCo magnet rotor for a 50,000+ RPM, 100KW+ system Yu S B, Tang R. Electromagnetic and mechanical characterizations of noise and vibration in permanent magnet synchronous machines. IEEE Trans Magn, 2006, 42: 1335–1338. Article Google Scholar Zuo S, Lin F, Wu X. Noise analysis, calculation, and reduction of external rotor permanent-magnet synchronous motor.Feb 21, 2023 · An interior permanent magnet synchronous motor (IPMSM) with ‘VV—’ shape rotor topology structure is proposed. The established two-dimensional (2D) parameterized finite element analysis (FEA) models are used to analyze and compare the output average torque, torque density, air-gap flux density and back electromotive force (EMF) of the IPMSM with ‘V’ shape, ‘V—’ shape, ‘VV ... Harmonic Distortion is very low at <2% giving superior waveform, meaning that our low rpm permanent magnet generators help you guarantee the safe operation of modern sensitive electronic equipment. When using our low rpm pmg generators, power density is increased using inverter technology, where the traditional excitation winding systems are ... Jan 8, 2021 · The permanent magnet is axially magnetized; meaning that the north and south poles alternate and are on the same axis as the motor shaft. When current is applied to windings, poles on the stator are magnetized and align with the opposite poles from the permanent magnet rotor. For example, north poles would align directly across from south poles. Apr 1, 2012 · In fact, as weâ ll explore, the major difference between PMAC and permanent magnet DC motors is that the faster a PMACâ s rotor spins, the higher back-EMF voltage is generated. Aug 5, 2020 · To enhance the torque density of a permanent magnet (PM) motor, a rotor overhang structure (OS), which is a simple and effective way to increase the flux linkage, is used in various types of PM motors such as SPM motors [5-9], interior PM motors , and spoke-type PM motors [11, 12]. The OS means that the axial length of the rotor is designed to ... Today’s automotive industry has focused its studies on electric vehicles (EVs) or hybrid electric vehicles (HEVs) rather than gasoline-powered vehicles. For this reason, more investment has been made in electric motors with high efficiency, high torque density, and high-power factor to be used in both EVs and HEVs. In this study, an outer-rotor …where B m is the maximum air gap flux density (0.4–0.9 T), B r,m is the remanence flux density of the magnets (1.2 T) at the operating temperatures of the outer rotor PMSG, is the relative permeability of the …Axial flux permanent magnet (AFPM) machines are good candidates for electric vehicle applications due to their high torque density, improved efficiency, and better flux distribution; thus, they are often used. A dual-rotor single-stator AFPM machine with four differently shaped permanent magnet (PM) rotors is investigated. The main aim of …This study proposes design procedures for the permanent-magnet-biased magnetic bearings (PEMBs) in rotor systems. Many aspects of designing magnetic …Dec 1, 2017 · In their work, a range of electric machine options are considered and it is concluded that a synchronous machine with a permanent magnet (PM) rotor will be the most efficient and power dense. In addition to applications in turbocharging, Gerada [ 3 ] highlight an increasing demand for high-speed electrical machines in flywheel energy storage ... A method of balancing an embedded permanent magnet motor rotor includes the steps of: a) providing a non-magnetic cylindrical shaft having an axis of rotation and a generally cylindrical surface with an even number of recessed slots defining an even number of ribs therebetween; b) machining an axial slot having a cross-section with a top opening, a bottom and two sides in a center portion of ... Permanent-magnet fields are, by definition, constant and not subject to failure, except in extreme cases of magnet abuse and demagnetization by overheating. Although PM motors are more expensive than induction motors, they offer a longer operating life, improved efficiency, better thermal resistance, reduced size and weight.This control method can control the AC permanent magnet servo motor as a DC permanent magnet motor in a sense. According to Equations (1)–(3), the second-order dynamic equation of the position ring of the PMSM is expressed as follows: (4) { θ ˙ = ω ω ˙ = b i q + d (4) where b = 1.5 p n ψ f / J is a disturbance composed of unknown friction …This paper proposes a novel layered permanent magnet motor (N-LPM), which is based on a three-degree-of-freedom (3-DOF) permanent magnet motor. Compared with the former, the improved N-LPM air gap magnetic density, torque and structure stability have been significantly improved. The proposed N-LPM has three …In this study, we performed an electromagnetic characteristic analysis of a permanent magnet synchronous machine considering the current waveform based on static rotor eccentricity. First, the characteristics of the back electromotive force were analyzed through the no-load analysis of the analysis model according to static rotor …Nov 15, 2016 · Any device that turns electricity into motion, meaning electrical energy into mechanical energy, is called an electric motor. Due to the continuous need for increased power density and high efficiency levels, PM motors (permanent magnet) are now common among today’s motor market. The first electric motors used bar magnets, and were more or ... Permanent Magnet Rotors. Magnetic motor rotor, which is formed by magnetic steel, metal shaft or metal shell. According to detailed application situation, the …Jun 23, 2022 · The rotor overtemperature caused by losses is one of the important issues for the high-speed electrical machine. This paper focuses on the rotor loss analysis and CFD-thermal coupling evaluation for 105 kW, 36,000 r/min HSPMSM. Three types of sleeve materials as carbon-fiber, Titanium alloy, and stainless steel are introduced in this paper, researching the effects of sleeve conductivity ... Summary. PM (Permanent Magnet) Type: uses permanent magnets, moderate torque, low to mid-speed. VR (Variable Reluctance) Type: toothed rotor/stator, low torque, mid to high speed. Hybrid Type: combines permanent magnets and teeth, good combination of torque and speed.In the same way in , through FEM simulations and experimental results, a simple dynamic abc model for brushless permanent magnet motors, under demagnetisation faults, is presented and validated. The strategies based on the analysis of the harmonics produced by rotor demagnetisation in the phase currents or the EMF are …Electromagnetic interaction between the rotor permanent magnet and the stator slots is quite large. (1000 N simulated value for this motor). The air-gap needs to be as small as 1 mm. Fig. 4a shows the single disc of rotor with 9° skewed permanent magnets. The machine rotors were constructed by using mild-steel.Recently, PMSMs having high power density and high efficiency are widely used in premium home appliances and electric vehicles. 1 Compared to a SPMSM (surface-mounted permanent magnet synchronous motor), large torque ripple in an IPMSM is a bad influence on the system in a variable speed range. 2 The optimization of a motor is …Mahle says the ability to tune and change the parameters of the rotor’s magnetism instead of being stuck with what a permanent magnet offers has allowed its engineers to achieve efficiencies ...A permanent magnet synchronous generator is a generator where the excitation field is provided by a permanent magnet instead of a coil. The term synchronous refers here to the fact that the rotor and magnetic field rotate with the same speed, because the magnetic field is generated through a shaft mounted permanent magnet mechanism and current is induced into the stationary armature. This paper proposes a novel layered permanent magnet motor (N-LPM), which is based on a three-degree-of-freedom (3-DOF) permanent magnet motor. Compared with the former, the improved N-LPM air gap magnetic density, torque and structure stability have been significantly improved. The proposed N-LPM has three …An integrated-starter-generator (ISG) is a key component of hybrid electric vehicles (HEVs), which starts the engine as a motor and generates electric power as a generator according to operational conditions and system requirements [1,2,3].At present, conventional permanent magnet (PM) brushless machines with PMs in the rotor are …This paper proposes a novel layered permanent magnet motor (N-LPM), which is based on a three-degree-of-freedom (3-DOF) permanent magnet motor. Compared with the former, the improved N-LPM air gap magnetic density, torque and structure stability have been significantly improved. The proposed N-LPM has three …Mar 16, 2015 · A post-assembly magnetizing fixture has been designed and successfully used to magnetize the rotor of a 100 kW high speed permanent magnet synchronous motor. The rotor is a solid cylinder with outer diameter of 80 mm and total length of 515 mm. The permanent magnet material is samarium-cobalt (Sm 2 Co 17) with saturation magnetizing field of 6 ... May 30, 2023 · Currently, research is being carried out on the performance improvement of permanent-magnet-synchronous motors (PMSM) used in air conditioning and blowing systems for marine, as well as structural research, regarding their high-speed operation. Surface-mounted permanent magnet (SPM) motors used in marine propulsion and air-conditioning systems have the advantages of easy rotor manufacturing ... In the same way in , through FEM simulations and experimental results, a simple dynamic abc model for brushless permanent magnet motors, under demagnetisation faults, is presented and validated. The strategies based on the analysis of the harmonics produced by rotor demagnetisation in the phase currents or the EMF are …2 Rotor system dynamics modelling of high-speed PM motor 2.1 Support characteristics of active magnetic bearings (AMBs) To make the rotor reach a high speed, the use of non-contact magnetic bearing or air bearing is required. First the rotor critical speed analysis needs to study the support characteristics of rotor-bearing system.This study proposes design procedures for the permanent-magnet-biased magnetic bearings (PEMBs) in rotor systems. Many aspects of designing magnetic …To replace permanent magnets on an electric bike rotor, you’ll need a few essential tools: a screwdriver, pliers, and possibly a heat gun. Additionally, gather the …A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets. A permanent magnet is an object made from a material ... Magnet Rotors. Magnetic rotor, or permanent magnet rotor is the non stationary part of a motor. The rotor is the moving part in an electric motor, generator and more. Magnetic rotors are designed with multiple poles. Each pole alternates in polarity (north & south). high efficiency motors with power-dense permanent magnet rotor materials Arnold manufactures Recoma® 35E, the world’s most power-dense samarium cobalt material available on the market today. This innovative magnetic material is critical to boosting performance in the aerospace, automotive and motorsport industries, providing superior …Axial flux permanent magnet synchronous motors (AFPMSMs) have been widely used in wind-power generation, electric vehicles, aircraft, and other renewable-energy applications owing to their high power density, operating efficiency, and integrability. To facilitate comprehensive research on AFPMSM, this article reviews the developments in …The traditional bearingless synchronous reluctance motor (BSynRM) with salient pole rotor has some drawbacks such as high suspension force ripple, low torque density and low power factor. To overcome the above shortcomings, the permanent-magnet-assisted bearingless synchronous reluctance motor (PMa-BSynRM) is …This paper compares two flux-switching machines, namely, one stator permanent magnet flux-switching machine and one rotor permanent magnet flux …Summary. PM (Permanent Magnet) Type: uses permanent magnets, moderate torque, low to mid-speed. VR (Variable Reluctance) Type: toothed rotor/stator, low torque, mid to high speed. Hybrid Type: combines permanent magnets and teeth, good combination of torque and speed.For high-speed permanent magnet synchronous motors (HSPMSM), the rotor eddy current loss is generated by the time and the space harmonics, which results in the rotor temperature rise. This paper deals with the design and analysis of a 100kW, 20000r/min HSPMSM with novel composite rotor. The novel composite rotor includes a shaft, …Dec 2, 2022 · This paper presents an analytical method for calculating rotor stresses of high-speed surface-mounted permanent magnet synchronous motors (SPMSMs) with segmented permanent magnets (PMs), the pole-arc coefficient, fillings between poles, and material anisotropy are accurately considered. Afterward, the rotor stresses with different retaining sleeves and fillings are compared, the variation laws ... Mahle says the ability to tune and change the parameters of the rotor’s magnetism instead of being stuck with what a permanent magnet offers has allowed its engineers to achieve efficiencies ...Dec 15, 2023 · Interior permanent magnet (IPM) motors in traction applications often employ discrete rotor skewing constructions to reduce torsional excitations and back-EMF harmonics. Although skewing is very effective in reducing cogging torque, the impact on torque ripple is not well understood and can vary significantly over the operating envelope of a motor. Skewing also leads to the creation of a non ... Axial-flux permanent magnet (AFPM) motors have been attracting great interest due to their key advantages of high-torque density and compact structure. Concentrated windings are commonly used for AFPM motors since they significantly reduce the radial length of the end windings. This paper proposes a novel double-sided stator …The prototype machine is an axial-flux permanent-magnet machine with a two-rotor–one-stator configuration. The nominal power of the machine is 300 W and the nominal rotational speed is 500 rpm. The magnets are neodymium iron boron magnets. Twelve magnets are mounted on the rotor surface and 12 magnets buried on the rotor (Fig. 12a).This paper investigates mechanical vibrations of an interior permanent magnet (IPM) synchronous electrical motor designed for a wide range of speeds by virtue of the modal and rotordynamic theory. Mechanical vibrations of the case study IPM motor components were detected and analyzed via numerical, analytical and experimental …The rotor overtemperature caused by losses is one of the important issues for the high-speed electrical machine. This paper focuses on the rotor loss analysis and CFD-thermal coupling evaluation for 105 kW, 36,000 r/min HSPMSM. Three types of sleeve materials as carbon-fiber, Titanium alloy, and stainless steel are introduced in this paper, …
Permanent Magnet Rotors High-Speed, High-Reliability, High-Efficiency Permanent Magnet Rotors For over 25 years, Integrated Magnetics has developed and refined the expertise needed for the technical design and manufacturing of high-speed, high-reliability, high-efficiency permanent magnet rotors for high-performance electrical machines. . If we win i
An interior permanent magnet synchronous motor (IPMSM) with ‘VV—’ shape rotor topology structure is proposed. The established two-dimensional (2D) parameterized finite element analysis (FEA) models are used to analyze and compare the output average torque, torque density, air-gap flux density and back electromotive force …Permanent Magnet (PM) Brushless Direct Current (BLDC) actuators/motors have many advantages over conventional machines, including high efficiency, easy controllability over a wide range of operating speeds, etc. There are many prototypes for such motors; some of them have a very complicated construction, and this ensures their …A method of balancing an embedded permanent magnet motor rotor includes the steps of: a) providing a non-magnetic cylindrical shaft having an axis of rotation and a generally cylindrical surface with an even number of recessed slots defining an even number of ribs therebetween; b) machining an axial slot having a cross-section with a top opening, a bottom and two sides in a center portion of ... 1,417 permanent magnets stock photos, 3D objects, vectors, and illustrations are available royalty-free. See permanent magnets stock video clips. Experimental electric generator on white background, consists of copper coils and magnets. A generator is a device that converts mechanical energy to electrical energy for use in an external circuit.A computationally efficient design of interior permanent magnet (IPM) motor rotor features is investigated utilizing analytical methods. Over the broad operating range of IPM machines, interactions of MMF sources, permeances, and currents result in torque harmonics. The placement of traditional rotor features along with sculpt features are …To replace permanent magnets on an electric bike rotor, you’ll need a few essential tools: a screwdriver, pliers, and possibly a heat gun. Additionally, gather the …1 Introduction. Flux-switching permanent-magnet (FSPM) motors have advantages such as high-power and -torque density, high efficiency and simple and robust mechanical structure in the rotor [1-4].These motors have bipolar flux linkage and sinusoidal back-electromotive force (EMF) [].In FSPM motors, because of the placement of …To replace permanent magnets on an electric bike rotor, you’ll need a few essential tools: a screwdriver, pliers, and possibly a heat gun. Additionally, gather the …In this study, an analytical model is established to efficiently compute the magnetic field and unbalanced magnetic pull (UMP) in axial-flux permanent-magnet motors (AFPMMs). The effects of stator …In this paper, a novel dual mechanical port dual rotor counter-rotating permanent magnet flux switching generator (DMPDRCR-PMFSG) for wind turbine applications is proposed. Power distribution between the inner and outer rotors of the proposed DMPDRCR-PMFSG that contributes to the cumulative output power is …A 1 kW, 510 rpm, 24-slots and 8-pole inner runner type surface permanent magnet mounted radial flux brushless DC motor with seven different permanent magnet pole shape rotor is investigated.Permanent Magnet Rotors. Magnetic motor rotor, which is formed by magnetic steel, metal shaft or metal shell. According to detailed application situation, the …Oct 6, 2023 · The rotor of the HSPMSM adopts a solid cylindrical permanent magnet rotor with the parallel magnetization of two poles. The excitation magnetic field of the permanent magnet is a standard sinusoidal magnetic field, which can provide a large magnetic potential, which is convenient for the design of large air gaps and is conducive to ventilation and heat dissipation. .
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