Tag: Synchronous

Sliding Mode Control for Synchronous Electric Drives


Free Download Sliding Mode Control for Synchronous Electric Drives By Sergey E. Ryvkin, Eduardo Palomar Lever
2011 | 208 Pages | ISBN: 0415690382 | PDF | 4 MB
This volume presents the theory of control systems with sliding mode applied to electrical motors and power converters. It demonstrates the methodology of control design and the original algorithms of control and observation. Practically all semiconductor devices are used in power converters, that feed electrical motors, as power switches. A switching mode offers myriad attractive, inherent properties from a control viewpoint, especially a sliding mode. Sliding mode control supplies high dynamics to systems, invariability of systems to changes of their parameters and of exterior loads in combination with simplicity of design. Unlike linear control, switching sliding mode control does not replace the control system, but uses the natural properties of the control plant system effectively to ensure high control quality. This is the first text that thoroughly describes the application of the highly theoretical control design approach to synchronous drives in practice. It examines in detail the different features of various types of synchronous motors and converters with regard to sliding mode control design. It further presents a detailed analysis of control issues and mechanical coordinate observation design for various types of synchronous motors, of power converters, and various drive control structures. It also discusses the digital implementation of control, observation and identification algorithms. The potential of sliding mode control and observation are moreover demonstrated in numerical and experimental results from real control plants.This work is intended for professionals and advanced students who work in the field of electric drive control. It is also recommended to experts in control theory application, who work with sliding modes for the control of electrical motors and power converters.

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Synchronous and Asynchronous Approaches to Teaching Higher Education Lessons in Post-Pandemic Times


Free Download Payal Kumar, "Synchronous and Asynchronous Approaches to Teaching: Higher Education Lessons in Post-Pandemic Times"
English | ISBN: 3031178408 | 2023 | 321 pages | PDF | 7 MB
This book examines synchronous and asynchronous teaching in light of the COVID-19 pandemic. Within a few weeks, millions of teachers found themselves forced to teach online, often with little systematic preparation and in their own homes. While this mode of teaching was earlier seen to be supplementary to brick-and-mortar classes, online teaching has become pivotal to the classroom experience. The chapter authors write of shared experiences that encapsulate the challenges faced by faculty, students and also higher education institutions. The book covers what worked, what did not work and what had to be changed during the rapid shift to online synchronous and asynchronous teaching during the lockdowns. Comprising both theoretical and practical perspectives, this book provides one of the first authoritative analyses of the field, while gathering lessons to be learned from the pandemic.

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Analysis of Power System SubSuper-Synchronous Oscillations Caused by Grid-Connected Wind Power Generation


Free Download Analysis of Power System Sub/Super-Synchronous Oscillations Caused by Grid-Connected Wind Power Generation by Wenjuan Du , Haifeng Wang
English | PDF EPUB (True) | 2023 (2024 Edition) | 349 Pages | ISBN : 3031353420 | 60.5 MB
This book provides a systematic introduction to power system sub/super-synchronous oscillations caused by grid-connected wind power generation. The authors look at why oscillations occur and present methods for examining the risk of oscillations. Coverage includes state-space model based analysis and impedance model based analysis, which are the two main methods for examining the power system sub/super-synchronous oscillations. In addition, new methods for examining oscillations in wind farms are proposed.

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