Dr. Anmol Aggarwal is a highly accomplished professional who holds a Ph.D. in Electrical and Computer Engineering from Michigan State University. With a profound academic background, they have demonstrated a deep understanding of the complexities within the field. Currently based in Pontiac, Michigan, USA, Anmol serves as an Electric Motor Controls Engineer at General Motors. In this capacity, he contributes his expertise to the design, development, and optimization of electric motor controls, playing a pivotal role in shaping the future of automotive technology.
Case Study
Tuesday, October 01
04:30 pm - 05:00 pm
Live in Berlin
Less Details
This presentation delves into the investigation of Permanent Magnet Synchronous Motors (PMSM) featuring modular stators constructed from oriented steel. The strategic use of oriented steel in a modular Permanent Magnet Synchronous Machine (PMSM) stator can improve machine performance, particularly when compared to a machine designed with non-oriented steel, by increasing both torque and efficiency. Typically, steel manufacturers provide magnetic properties only in the rolling and transverse directions. Furthermore, in modern Finite Element Analysis (FEA) software, the magnetic properties between the rolling and transverse directions are interpolated using an intrinsic mathematical model. However, this interpolation method has proven to be inaccurate; to resolve this issue, an improved model was proposed in the literature. This model requires the magnetic properties of the oriented steel in between the rolling and transverse directions. Therefore, a procedure for extracting the magnetic properties of oriented steel is required. The objective of this work is to propose a method of determining the magnetic properties of oriented steel beyond just the oriented and transverse directions. In this method, flux-injecting probes, also known as sensors, are used to inject and control the flux density in an oriented steel segmented stator to extract the properties of the oriented steel. These extracted properties are then used to model an oriented steel modular stator PMSM. The machine’s average torque and core losses are compared with conventional, non-modular, non-oriented steel stator PMSM, and modular, non-oriented steel stator PMSM. It is shown that both the average torque and the core loss of the oriented steel modular stator PMSM have better performance at the selected number of segments than either of the two non-oriented steel stators.
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