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This paper analyzes the vibration due to magnetostriction in axial flux (AF) permanent magnet (PM) machines with amorphous metal cores (AMCs). First, an analytical model is developed to predict the vibration due to magnetostriction. The solution regions of the analytical model are divided into yoke and teeth subdomains. Then, the effect of processing technics on the vibration of AMCs which is unable...
This paper investigates the electromagnetic vibration and noise in amorphous alloy permanent magnet synchronous motors (AAPMSMs) whose stator cores are made from amorphous magnetic material (AMM). In addition, conventional silicon steel permanent magnet synchronous motors (SSPMSMs) whose stator cores are made from silicon steel sheet (SSS) are investigated as a comparison at the same time. Data for...
This paper investigates the additional losses introduced by PWM supply in surface mounted permanent magnet synchronous motor (PMSM). An analytical model is developed to discuss additional iron loss, and an analytical model of PM eddy current loss which according for eddy current reaction is also presented. Finite element method (FEM) are used to calculate the characteristic of additional losses distribution...
The operation Characteristics of the permanent magnet synchronous traction motor is mostly affected by the iron loss. In this paper, the PM flux linkage ψf, d-axis armature inductance Lad and q-axis armature inductance Laq was adopted to investigate the variation of iron loss under different load torque. It founded that increasing ψf, decreasing the γ or Lad, the iron loss increase smaller compared...
A parallel roll configuration scheme of hot ribbed bar straightening system is introduced in this paper. by applying elastic-plastic deformation theory and interrelated knowledge of material mechanics, mathematical model of triple-roller blocked rotation is established and anti-torque mathematical function expression is deduced based on straightening principle. The anti-torque function of triple-roller...
Because of the higher efficiency, higher power factor, higher power density and better dynamic performance, there is ever increasing attention to applying permanent magnet synchronous motors (PMSM) to traction system. In this paper, the parameter selection of the permanent magnet traction drive motor (PMTDM) was carried out. Some useful conclusion was obtained. At last, a motor design program was...
Combining the 3-D temperature field with cooling system of disc type permanent magnet synchronous motor (DPMSM), an integrated computing procedure related to the cooling system and heat of a disc type permanent magnet synchronous motor , whose purpose is to get the temperature and its distribution accurately in every part was came into being. In order to get a well distribution of temperature in each...
Because of the higher efficiency, higher power factor, higher power density and better dynamic performance, there is ever increasing attention to applying permanent magnet synchronous motors (PMSM) to traction system. In this paper, a design method which is based on the maximum torque per ampere was introduced and a 303 kW internal permanent magnet permanent magnet synchronous motor (IPMSM) with two-layer...
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