Effect of Stator Structure and Field Analysis of a New Type Single-Phase Induction Motor

2012 ◽  
Vol 229-231 ◽  
pp. 907-910
Author(s):  
Hui Zhong ◽  
Xiu He Wang ◽  
Cheng Zhang ◽  
Ming Yin
Keyword(s):  
Induction Motor ◽  
Single Phase ◽  
High Efficiency ◽  
Low Cost ◽  
Field Analysis ◽  
Stator Windings ◽  
Magnetic Field Analysis ◽  
Dimensional Finite Element ◽  
New Type ◽  
Type Motor

The new type single-phase induction motors with three stator windings are brought forward for there high efficiency and low cost. However, the unbalance current density in the stator windings is still a problem to the design of this type motor. This paper presents the asymmetrical stator windings and slots structure in the motor design to get the currents density balance. A magnetic field analysis of the new type tri-winding induction motor is preformed using a two-dimensional finite element method. The Maxwell stress method is used to compute the air gap torque that is required for solving the equation of motion. The perfomance of the motor with different structure stator are compared and analysised.

New Type of Distributed Biomass Combustion Device Necessity and Feasibility in China

2011 ◽  
Vol 383-390 ◽  
pp. 4013-4016
Author(s):  
Chang Le Pang ◽  
Li Chen ◽  
Ren Jie Dong
Keyword(s):  
Rural Areas ◽  
High Efficiency ◽  
Low Cost ◽  
Biomass Combustion ◽  
Combustion System ◽  
Human Beings ◽  
New Type ◽  
Energy Products ◽  
The Ideal ◽  
Commercial Energy

Worldwide changes in climate and environment forced us human beings to seek for alternatives to replace commercial energy products like coal and petroleum. However, there have some difficulties to promote commercial energy products in China’s rural areas and newly urbanized areas. Biomass combustion system will become one of the ideal devices for such areas in a period of time. It is necessary to develop new types of biomass combustion system consisting of gasification or Semi-Gasification and combustion units so that it can provide high efficiency and low cost for household purposes.

CVD Diamond Film Polishing Based on Accelerant Theory

2012 ◽  
Vol 497 ◽  
pp. 185-189
Author(s):  
Li Zhang ◽  
Shao Jie Ding ◽  
Dong Hui Wen ◽  
Zhen Hao Xu ◽  
Shi Ming Ji
Keyword(s):  
Diamond Film ◽  
High Efficiency ◽  
Low Cost ◽  
Cvd Diamond ◽  
Reaction Rates ◽  
Precision Machining ◽  
Key Technologies ◽  
Ultra Precision ◽  
New Type ◽  
Cvd Diamond Film

CVD diamond has become the mainstream trend for the development of diamond. Its ultra precision machining is one of the key technologies for expanding the application of CVD diamond film. The efficient polishing method is studied, called accelerant polishing technology, which can lower the activation energy needed in diamond graphitization by the accelerant action of transition metal. It accelerates reaction rates of graphitization and promotes the implementation of diamond’s removal mechanism. Experimentation results indicate that the polishing method is one new type of precision polishing technology with low cost and high efficiency.

Development of the Two Pole Type Shaded Pole Self-Bearing Motor

2016 ◽  
Vol 856 ◽  
pp. 196-201 ◽  
Author(s):  
Nobuyuki Kurita ◽  
Takeo Ishikawa ◽  
Genri Suzuki
Keyword(s):  
Induction Motor ◽  
Magnetic Force ◽  
Simple Structure ◽  
Magnetic Levitation ◽  
The Self ◽  
Field Analysis ◽  
Horizontal Movement ◽  
Magnetic Field Analysis ◽  
Pole Type ◽  
Driving Circuit

In order to reduce the size and complexity of the driving circuit of the self-bearing motor, this paper proposes a magnetically levitated shaded pole induction motor. The rotor is still supported by magnetic force, but the motor has a very simple structure because magnetic levitation and rotation can be achieved with only one amplifier. The suspension force and rotational torque have been analyzed by FEM magnetic field analysis. A simple experimental setup using the rotor of a commercial shaded pole induction motor was designed and fabricated. Although it did not succeed in levitation control, the rotation control was successful in the situation where perpendicular and horizontal movement of the rotor were restricted.

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