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Energy Optimal Control of Interior Permanent Magnet Synchronous Motor. Vector controlled scheme for IPMSM and energy optimal control using d axis current

Автор:   fasil a.
мягкая обложка
96 страниц
2010 год
Издательство:   Книга по Требованию
2005 руб
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Описание:For the proposed work the vector control technique is used in order to achieve fast and accurate speed response, quick recovery of speed from any disturbance and insensitivity to parameter variations etc. Thus, the IPMSM is considered in this work. The proposed energy optimization algorithm is developed based on motor model. In order to minimize the controllable losses, the air gap flux level should be optimized. There has been a growing concern over energy consumption since the past decade mainly because of the soaring cost of energy and tight environmental laws and regulations. Recently, the IPMSM has been becoming popular due to some of its advantages such as high efficiency, high power density, low noise and robustness as compared to the conventional induction and other ac motors. In this thesis a model based efficiency optimization for speed control of interior permanent magnet synchronous motor (IPMSM) is proposed to improve the efficiency of the motor drive which usually operates at different load and speed conditions. In an IPMSM the flux level can only be optimized by controlling the d-axis armature current as the field flux is supplied by the rotor permanent magnet.

Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка

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Practical Common Lisp

T is shorthand for the stream *STANDARD-OUTPUT*, while NIL causes FORMAT to generate its output to a string, which it then returns.[195] If the destination is a stream, the output is written to the stream. And if the destination is a string with a fill pointer, the formatted output is added to the end of the string and the fill pointer is adjusted appropriately. Except when the destination is NIL and it returns a string, FORMAT returns NIL. The second argument, the control string, is, in essence, a program in the FORMAT language. The FORMAT language isn't Lispy at all—its basic syntax is based on characters, not s-expressions, and it's optimized for compactness rather than easy comprehension. This is why a complex FORMAT control string can end up looking like line noise. Most of FORMAT's directives simply interpolate an argument into the output in one form or another. Some directives, such as ~%, which causes FORMAT to emit a newline, don't consume any arguments. And others, as you'll see, can consume more than one argument ...»

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