Electrical Machines And Drives A Space Vector Theory Approach Monographs In Electrical And Electronic Engineering [exclusive] Full Jun 2026

by Werner Leonhard: This book is a seminal work on vector control, a practical application of space vector theory to control AC drives.

It demonstrates how various machine models (like the matrix model of generalized machine theory) can be derived from the simpler space-vector model without needing complex matrix transformations.

In mine hoists, rolling mills, and marine propulsion, the space vector model is used to analyze harmonics, stability, and optimal switching strategies for multi-level inverters. The monograph’s emphasis on the continuous-time vector differential equation is the starting point for digital control design.

This monograph distinguishes itself through several innovative features: by Werner Leonhard: This book is a seminal

Applying space vector theory to machine modeling eliminates the position-dependent mutual inductances that complicate standard three-phase differential equations. Induction Machines (IM)

ψrd=Lm1+τrsisd(where τr=Lr/Rr)psi sub r d end-sub equals the fraction with numerator cap L sub m and denominator 1 plus tau sub r s end-fraction i sub s d end-sub space (where tau sub r equals cap L sub r / cap R sub r )

, which represents a in DC-bus utilization compared to standard carrier-based SPWM without overmodulation. 5. High-Performance Control Strategies Most textbooks treat induction motors

: It converts 3-phase (abc) systems into stationary ( ) or rotating (

a=ej2π3=−12+j32bold a equals e raised to the j the fraction with numerator 2 pi and denominator 3 end-fraction power equals negative one-half plus j the fraction with numerator the square root of 3 end-root and denominator 2 end-fraction The scaling factor of

: Uses space vector maps to select voltage vectors that instantly correct torque and flux errors. Key Applications and Impact you can derive the others.

: The approach inherently accounts for non-sinusoidal distributions and harmonics.

Most textbooks treat induction motors, synchronous motors, and DC machines as separate species. This book treats them as variations of a general electromagnetic structure. Once you understand the space vector model for one, you can derive the others.

: Enables high torque at zero speed and efficient regenerative braking.