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Magnetic-Geared Permanent Magnet Synchronous Motor for E-Mobility

30
Jun

Magnetic-Geared Permanent Magnet Synchronous Motor for E-Mobility

Gears and gearboxes are used to vary the speed and torque transmission in various mechanical systems. Despite being traditionally and widely used, mechanical gears suffer from several drawbacks related to friction, heat, noise, and wear/tear; thus, they reduce the efficiency and increase the maintenance cost. In contrast, magnetic gears, free from the above drawbacks, provide higher power density and better protection. Moreover, these contactless gears can be integrated with permanent magnet machines. This novel technology makes the magnetic geared permanent machines a promising solution for direct drive systems. It offers numerous advantages for e-mobility applications such as reduced size and weight, more efficient, low speed, and high torque transmission.

EMWorks’ magnetic solution, for electric machine design and simulation, can be integrated seamlessly in the design and development process of these applications. It helps engineers design more efficient and adaptable geared motors for different e-mobility applications such as electric vehicles, electric scooters, e-trucks, and e-trams.

In this webinar, EMWorks’ solution for magnetic gears will be showcased. We shall show you how you can analyze a magnetic geared PM synchronous motor and explore a rich set of results including, force, torque, back emf, flux linkage, flux density distribution, and more.

Session 1: 09:00 AM EDT
| Session 2: 02:00 PM EDT
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How to Design an Efficient Terahertz Bandpass Filter?

07
Jul

How to Design an Efficient Terahertz Bandpass Filter?

The remarkable explosion of wireless devices and bandwidth-consuming Internet applications have boosted the demand for ultra-high data rate wireless communication. To meet the exponentially increasing traffic demand, new regions in the radio spectrum are explored. The terahertz band (0.1 THz-10 THz), sandwiched between microwave frequencies and optical frequencies, is considered as the next breakthrough-point to revolutionize the communication technology due to its rich spectrum resources. It is recognized as a promising candidate for the future 6G communication.  

Bandpass filters are indispensable components for Terahertz communication. They are used to reduce and filter out signal interference and distortion. Terahertz bandpass filters have wide applications in imaging, spectroscopy, security systems and detection of materials. Although they have promising advantages, they also have some challenges and limitations.  For instance, the frequency, conductivity, and surface roughness can have a major effect on the filter performance.

In this webinar, we will discuss some of the filter design challenges; we shall show you how to use 3D high frequency electromagnetic simulation software to address those challenges and improve the filter performance at THz frequencies.

Session 1: 09:00 AM EDT
| Session 2: 02:00 PM EDT
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Leistungsanalyse von Toyota-, Nissan- und Tesla-Elektromotoren mithilfe von MotorWizard

13
Jul

Leistungsanalyse von Toyota-, Nissan- und Tesla-Elektromotoren mithilfe von MotorWizard

Mit dem weltweiten Trend zur Elektrifizierung des Verkehrs wächst das Interesse an verschiedenen Konfigurationen von Elektromotoren. Unter ihnen werden Permanentmagnet-Synchronmaschinen (PMSM) aufgrund ihrer besonderen Vorteile wie hohes Drehmoment und Leistungsdichte, geringere Größe und hohe Effizienz häufig für Anwendungen in Elektrofahrzeugen (EVs) eingesetzt. Der aktuelle Trend deutet darauf hin, dass Elektrofahrzeuge Fahrzeuge mit Verbrennungsmotor (ICE) wahrscheinlich in einigen Jahrzehnten ersetzen werden. In PMSM scheinen die inneren Permanentmagnet (IPM)-Maschinen die prominenteste Konfiguration zu sein. Denn sie erzeugen das Reluktanzdrehmoment, das das Ausgangsdrehmoment einer Maschine aufgrund der Platzierung der Magnete im Rotorkern erhöht. Sie haben auch eine bessere Entmagnetisierungsfestigkeit und bieten einen breiten flussschwächenden Betriebsbereich. In diesem Webinar werden drei verschiedene Topologien der IPMSMs simuliert und ihre Leistung mit MotorWizard verglichen. Die für die Analyse betrachteten Motortopologien stammen von Toyota Prius, Nissan Leaf und Tesla Model 3. Um vernünftige Vergleichsergebnisse zu erhalten, werden das Nenndrehmoment und die Nennleistung einer Maschine gleich gehalten. Die Leistungskurven wie Gegen-EMK, elektromagnetisches Drehmoment, Drehmomentwelligkeit, Wirkungsgrad und Verluste werden ausgewertet und verglichen. In diesem Webinar demonstrieren wir auch das schrittweise Verfahren zur Verwendung der vorlagenbasierten Motorkonstruktionssoftware MotorWizard zur Konstruktion einer IPM-Maschine. Wir zeigen Ihnen, wie Sie die Geometriedimensionierung, Materialauswahl, Wicklungskonfiguration einstellen und die stationären Ergebnisse erhalten.

Session 1: 08:00 AM EDT
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DESIGN AND EVALUATION OF BRUSHLESS DC PERMANENT MAGNET MACHINES

14
Jul

DESIGN AND EVALUATION OF BRUSHLESS DC PERMANENT MAGNET MACHINES

Due to the advancement of power electronics and drive systems, special electric machines were introduced, and the Brushless DC motor is one of them. An electronic controller is used to switch DC currents of the stator windings producing magnetic fields which effectively rotate in space and which the permanent magnet rotor follows. Researchers have moved towards Brushless DC (BLDC) from traditional brushed motors to take advantage of the power efficiency, torque efficacy, size, and reliability benefits. It is suitable for many applications such as robotics, drones, automobiles, and even aircraft. In this context, a special interest is paid to the concentrated windings that allow more compact designs and more efficient topologies as they are known by shorter end windings. 

In this webinar, we will show you step-by-step, how to use our virtual prototyping EMWorks2D software, to study and perform two BLDC motor designs with 16 and 20 poles under different commutation conditions (120° and 180° conduction mode).  The electromagnetic results such as back EMF, flux linkage, and average torque as well as thermal analysis will be evaluated and analyzed. In addition, we will demonstrate how to build and simulate the BLDC motor using our electromagnetic simulation software tools – EMWorks2D 

Session 1: 09:00 AM EDT
| Session 2: 02:00 PM EDT
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A Well-Suited Workflow for the Design of Synchronous Reluctance Motors

21
Jul

A Well-Suited Workflow for the Design of Synchronous Reluctance Motors

Synchronous reluctance machines (SynRMs) have recently been gaining more interest in different applications requiring high dynamics, high torque density, and fault-tolerant capabilities, such as traction and household appliance. Robust rotor structure, absence of rotor joule loss, low cost, and convenience in manufacturing are just few advantages of a SynRM. Since the SynRM rotor is made of iron lamination, no brushes/slip-rings and expensive PMs are needed. Although electrical machines with rare-earth permanent magnets have high performance, the high cost and the scarcity of rare-earth permanent magnet materials are obstacles to further development in applications such as electric and  hybrid vehicles. Line-start synchronous reluctance motors are also a suitable alternative to induction motors in fixed-speed direct-on-line (DOL) applications such as pumps and fans.

In this webinar, we will show you step-by-step, the design workflow of a 1HP-4 poles synchronous reluctance motor using EMWorks2D software. The electromagnetic results such as back EMF, flux linkage, and average torque will be discussed and analyzed.  At the end of the presentation, we shall also compare the FEA results to the analytic data.

 
Session 1: 09:00 AM EDT
| Session 2: 02:00 PM EDT
Read more

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