Motor variable

Abstract: My invention relates to a variable speed motor system, and particularly to an alternatingcurrent motor variable over a wide range of speed. In the application of motor drives, it is frequently desirable to operate the motor over a wide range of speed. Heretofore, it has been customary to provide...

Abstract: Past strategies for the analysis of ATP-fueled motors include single-motor analysis. Single-motor analysis bypasses limitations caused by motor asynchrony during the traditional ensemble averaging analysis. The present communication describes revised ensemble averaging analysis that also can bypass asynchrony-derived limitations. This revised analysis makes measurements of one motor variable dependent on the others. One example is nondenaturing gel electrophoresis with more than one dimension. Each dimension measures one of the motor variables. This multidimensional procedure is used to obtain the values of "conformational" motor variables as a function of a "clock" motor variable. In theory, the cycle of the motor can be analyzed from a single multidimensional analysis of a collection of asynchronous motors sampled at only one time. That is to say, motor asynchrony becomes an asset, rather than a liability.

Abstract: This paper describes a new variable-field motor that can be driven over a wide range of speed. This motor is a type of interior permanent magnet synchronous motor (IPMSM), and two kinds of Nd-Fe-B magnets with different coercive force are used. The motor model proposed in this paper can improve the motor variable speed range and efficiency compared with a basic motor model. No-load, load, and stress analyses are carried out using FEA simulations. According to simulation results, the torque of the new motor model approximately equals that of the basic motor model, and the speed can be achieved more than 250 % of that in the basic model.