Abstract: System and method for robust sensorless control of permanent magnet assisted synchronous reluctance (PM-SyR) motor. The system and method includes startup control of a motor with known rotor position/speed, but unknown rotor magnetic polarity of a motor exhibiting rotor magnetic anisotropy or saliency. The system and method includes a rotor characteristic detection method for a PM-SyR motor that detects rotor magnetic polarity based on the variation of the inductance that is caused by the leakage flux paths in the rotor barrier bridges and utilizes the detected rotor magnetic polarity for improved motor startup.

Abstract: Systems and methods are provided. A physical measurement of the core loss increase associated with a physical deformation of a material of the device is obtained. A data structure describing a model of the device is accessed. A first edge of the model of the device associated with a physical deformation of the device is identified. A finite element mesh is generated to include a single layer mesh comprising a plurality of mesh elements associated with the first edge of the finite element mesh. A core loss value is assigned to each of the plurality of mesh elements. Each of the core loss values representative of the physical measurement of the core loss increase of the material as a result of the physical deformation of the material. An electromagnetic model is generated by performing a finite element analysis based on the finite element mesh and the single layer mesh.

Abstract: Systems and methods are provided for analyzing magnetic hysteresis of anisotropic magnetic materials. Magnetic hysteresis loops associated with a local coordinate of a coordinated system based on a magnetic field successively applied to each principal axis with an isotropic vector play model are determined. A relaxation factor associated with the convergence behaviors of estimated solution points is applied along with a correction, either a magnetic field correction or a flux density correction, to determine target points on magnetic hysteresis loops. An error between magnetic hysteresis loops and the estimated solution points is determined. The iteration process continues up to a preset number of iterations with alternating correction schemes based on the determined error.

Abstract: Systems and methods are provided for analyzing magnetic hysteresis. A reversible component associated with an applied magnetic field is determined for establishing a series-distributed model. One or more hysteresis loops are generated for analyzing magnetic hysteresis of a magnetic material.

Abstract: Systems and methods are provided for constructing a physical system. Characteristic data associated with a physical system is received. A model of the physical system is built based on the characteristic data. A nonlinear transient simulation of the physical system is performed using the model, where the simulation is performed over a plurality of time intervals. The simulation includes segmenting the plurality of time intervals into groups of time intervals, each group containing multiple time intervals, transmitting data associated with each group of time intervals to a different solving unit, and solving each of the groups of time intervals in parallel using the different solving units. A physical characteristic is determined based on results of the simulation, where the physical system is built or modified based on the simulation-determined physical characteristic.

Abstract: Systems and methods are provided for constructing a physical system. Characteristic data associated with a physical system is received. A model of the physical system is built based on the characteristic data. A nonlinear transient simulation of the physical system is performed using the model, where the simulation is performed over a plurality of time intervals. The simulation includes segmenting the plurality of time intervals into groups of time intervals, each group containing multiple time intervals, transmitting data associated with each group of time intervals to a different solving unit, and solving each of the groups of time intervals in parallel using the different solving units. A physical characteristic is determined based on results of the simulation, where the physical system is built or modified based on the simulation-determined physical characteristic.