Short description:

New technological developments have created engineering problems where nonlinear effects have to be taken into account for a successful controller design. Unfortunately, the existing theory for general nonlinear systems cannot successfully deal with them. This book, which summarises the experience of the authors on control engineering applications over the past ten years aims to overcome this drawback by:

? Giving back to modelling the central role that it deserves, and focusing on the structural aspects that can be exploited for the controller design.

? Formalising mathematically current engineering practice, which is usually developed from practical experience and considerations, as opposed to theoretical analysis.

? Proposing new control laws that sometimes are viewed as "upgrades" to the existing schemes.

? Experimental validation, that confronts the new schemes with other theoretical studies or with industrial controllers.

The fundamental concept of passivity and the perspective of control as a suitable interconnection of the system with its environment are key ingredients in all the developments of the book, which is primarily aimed at control-orientated graduate students and researchers, but which will also have value for both practising engineers and those concerned with the more theoretical side of the subject.

The Communications and Control Engineering series reflects the major technological advances which have a great impact in the fields of communication and control. It reports on the research in industrial and academic institutions around the world to exploit the new possibilities which are becoming available.

Long description:

The essence of this work is the control of electromechanical systems, such as manipulators, electric machines, and power converters. The common thread that links together the results presented here is the passivity property, which is at present in numerous electrical and mechanical systems, and which has great relevance in control engineering at this time. Amongst other topics, the authors cover: Euler-Lagrange Systems, Mechanical Systems, Generalised AC Motors, Induction Motor Control, Robots with AC Drives, and Perspectives and Open Problems. The authors have extensive experience of research and application in the field of control of electromechanical systems, which they have summarised here in this self-contained volume. While written in a strictly mathematical way, it is also elementary, and will be accessible to a wide-ranging audience, including graduate students as well as practitioners and researchers in this field.

From the reviews:

We highly recommend Passivity-based Control of Euler-Lagrange Systems: Mechanical, Electrical and Electromechanical Applications for bot the researcher interested in advanced passivity-based control techniques and the engineer seeking experimentally proven techniques. The pedagogical style of the authors lend to the readability and the flow of knowledge to the reader; hence, this text lends itself to classroom use as a graduate level text in passivity-based control.

Automatica 36 (2000) 1389 ? 1391 (Reviewers: Warren E. Dixon and Darren M. Dawson)

?an attractive reference book for research and development engineers who are interested in modern methods of control theory. Also, can be used for advanced senior-level course in university.

IEEE Industrial Electronics Society Newsletter June (2001) 12 (Reviewer: Marian P. Kazmierkowsi)

Table of Contents:

1 Introduction.- 2 Euler-Lagrange systems.- 3 Set-point regulation.- 4 Trajectory tracking control.- 5 Adaptive disturbance attenuation: Friction compensation.- 6 Modeling of switched DC-to-DC power converters.- 7 Passivity-based control of DC-to-DC power converters.- 8 Nested-loop passivity-based control: An illustrative example.- 9 Generalized AC motor.- 10 Voltage-fed induction motors.- 11 Current-fed induction motors.- 12 Feedback interconnected systems: Robots with AC drives.- 13 Other applications and current research.- A Dissipativity and passivity.- 1 Circuit example.- 3 Passivity and finite-gain stability.- 4 Feedback systems.- 5 Internal stability and passivity.- 6 The Kalman-Yakubovich-Popov lemma.- B Derivation of the Euler-Lagrange equations.- 1 Generalized coordinates and velocities.- 2 Hamilton?s principle.- 3 From Hamilton?s principle to the EL equations.- 4 EL equations for non-conservative systems.- 5 List of generalized variables.- 6 Hamiltonian formulation.- C Background material.- D Proofs.- 3 The BP transformation.- 3.1 Proof of Proposition 9.20.- 3.2 A Lemma on the BP Transformation.- 4 Proof of Eqs. (10.41) and (10.77).- 4.1 A theorem on positivity of a block matrix.- 4.2 Proof of Eq. (10.77).- 4.3 Proof of Eq. (10.41).- 5 Derivation of Eqs. (10.55) and (10.56).- 5.1 Derivation of Eq. (10.55).- 5.2 Derivation of Eq. (10.56).- 6 Boundedness of all signals for indirect FOC.- 6.1 Proof of Proposition 11.10.