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Advanced Electric Drives- for free

electric drives

Hybrid electric and electric vehicles are important applications for the foreseeable future. Hybrid electric and electric vehicles are important applications for advanced electric drives in the foreseeable future. In many of these applications, maximum torque per ampere must be generated to increase efficiency, as described in this document. It is also necessary to control the electromagnetic torque as quickly and accurately as possible. The load torque T Load may step-jump in time, and if the speed ωm of the load is kept constant, the electromagnetic torque produced by the machine Tem must also step-jump.

Description

The purpose of this book (Advanced electric drives) is to provide as simple and concise an introduction to the analysis, control, and modeling of electrical machines as possible so that it can be easily covered in a one-semester course at the graduate level.

The purpose of this book is to provide as brief and concise an introduction as possible to the analysis, control, and modeling of electrical machines so that they can be easily covered in a one-semester course at the graduate level. To this end, a two-step approach was chosen, first providing a “physical” image without resorting to mathematical transformations for ease of visualization, and then mathematically confirming this physics-based analysis. The aforementioned “physical” image needs to be explained in more detail.

Most research literature and textbooks in this field treat the d q-axis transformation of a-b-c phase quantities on a purely mathematical basis and do not relate this transformation to a set of virtual but visualize able windings. In other words, it visualizes a series of virtual d q windings along orthogonal axes and relates their currents and voltages to a-b-c phase quantities. This discussion follows seamlessly from the treatment of space vectors and equivalent winding representations at steady state in the previous course and in the aforementioned textbook.

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