Application Catalog

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  1. 173 – Basic Characteristic Analysis of an IPM Motor

    OverviewDemand for higher efficiency and smaller size in motors has grown from the need to accommodate devices that incorporate miniaturization and energy efficiency in their designs. In order to meet this demand, motors have to improve their output…

    8 Mar 2018

  2. 172 – High-Frequency Induction Heating Analysis of a Test Piece (Rotational Induction Hardening)

    OverviewMachine parts like shafts and gears are made to be resistant to wear and tear. This is accomplished by giving them a certain degree of flexibility by maintaining their interior toughness while increasing the hardness of their surfaces. By us…

    8 Mar 2018

  3. 166 – Line Start Simulation of an Induction Machine Using a Control Simulator and the JMAG-RT

    OverviewCollaborative design is difficult because the controls and motor are designed independently. However, it has become necessary to resolve challenges through high-accuracy simulations at the beginning of the development process in order meet d…

    8 Mar 2018

  4. 165 – Creating an Efficiency Map for an IPM Motor

    OverviewFig. 1 shows the Speed-Torque curve, and fig. 2 shows the efficiency map.As seen in fig. 1, in the low speed region the torque becomes constant. This is due to the current controls. The torque also decreases as speed increases. This is becau…

    8 Mar 2018

  5. 163 – Torque-Current Curve Analysis of an SPM Motor

    OverviewOne of the fundamental properties of a permanent magnet synchronous motor is the relationship between its current and torque (torque-current curve). The torque generated at each current value is uniform with increases in current up to a cert…

    8 Mar 2018

  6. 112 – Starting Thrust Force Analysis of a Linear Induction Motor

    OverviewLinear motors are widely used for carrier devices and machine tools because of their high-speed performance, high acceleration and deceleration, and accurate positioning. One type of linear motor, the linear induction motor, can be construct…

    8 Mar 2018

  7. 107 – Current voltage characteristics analysis of flyback converters

    OverviewDC-DC converters such as flyback converters control current of primary / secondary winding with switch operation, and transmit electrical power on the load side using diodes and condensers. Depending on its application, there is a need to sa…

    2 Dec 2014

  8. 154 – Calculation of Equivalent Circuit Parameters in a Three-Phase Induction Motor

    OverviewAn induction motor is a motor in which the rotating magnetic field of the stator coils causes induced current to flow in an auxiliary conductor, exerting force on the rotor in the rotational direction and causing it to spin. Induction motors…

    6 Aug 2012

  9. 151 – Insulation Evaluation Analysis of a Power Transformer

    OverviewA transformer is an electrical device that uses electromagnetic induction to convert the voltage level of alternating current power. Among transformers, power transformers that are used in power conversion have extremely high electric fields…

    12 Jul 2011

  10. 161 – Line Start Analysis of a Three-phase Induction Machine

    OverviewThe simplest method for starting an induction motor is a line start that connects the motor to a direct power supply. For a line start, the static impedance is small compared to impedance during rated operation, so a large current flows duri…

    12 Jul 2011

  11. 152 – Electromagnetic Force Analysis of Short-circuited Power Transformer Coils

    OverviewA transformer is an electrical device that uses electromagnetic induction to convert the voltage level of alternating current power. Electromagnetic force is produced by the current and magnetic field in a transformer's coils while it is con…

    12 Jul 2011

  12. 162 – Drive Simulation of an SR Motor using a Control Simulator and the JMAG-RT

    OverviewSR motors are gaining attention as motors that do not use permanent magnets. However, torque pulsation is greater in SR motors because of the way their torque is generated, so it is seen as important to suppress torque pulsation not only wit…

    12 Jul 2011

  13. 149 – Analysis of Magnetic Force Acting on the Arc of a Vacuum Circuit Breaker

    OverviewVacuum circuit breakers have the function of breaking the current when a large current flows due to a short circuit or other reason in distribution boards, etc. When the vacuum circuit breaker breaks the current, metal vapor is discharged fr…

    25 Feb 2011

  14. 150 – Electromagnetic Repulsion Analysis of a Vacuum Circuit Breaker

    OverviewVacuum circuit breakers have the function of breaking the current when a large current flows due to a short circuit or other reason in distribution boards, etc. Contact pressure is applied to the contacts in a vacuum circuit breaker because …

    25 Feb 2011

  15. 159 – Sensitivity Analysis of Dimensional Tolerance in an SPM Motor

    OverviewThe corners of magnets used in surface permanent magnet (SPM) motors can be filleted, chamfered, etc. However, it is difficult to maintain exactly the same production in the manufacturing process, and some variation among finished products w…

    31 Jan 2011

  16. 156 – Segregation Analysis of Torque Components for an IPM Motor

    OverviewIPM motors are often used as high performance motors because they are highly efficient and their structure makes it possible to achieve a wide range of operation. They are able to achieve high efficiency because they obtain maximum total tor…

    27 Dec 2010

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