Wavelet Packet Transform and Direct-quadrature Axis-based Hybrid Technique for Differential Protection of Power Transformers PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Wavelet Packet Transform and Direct-quadrature Axis-based Hybrid Technique for Differential Protection of Power Transformers PDF full book. Access full book title Wavelet Packet Transform and Direct-quadrature Axis-based Hybrid Technique for Differential Protection of Power Transformers by Adel Aktaibi. Download full books in PDF and EPUB format.
Author: Adel Aktaibi Publisher: ISBN: Category : Languages : en Pages :
Book Description
Detecting and identifying the disturbances in power transformers have always been challenging tasks for accurate and reliable protection of power transformers. Several approaches have been tested for designing protective devices such as DFT, ANN, fuzzy logic and wavelets etc. The modern power system is highly polluted with harmonics, and the transient disturbances usually are non-stationary and non-periodic. Thus, these techniques may not be adequate for protection of newer power transformers. Current research indicates that the wavelet packet transform (WPT) provides fast and accurate distinguishing criteria for this purpose, because WPT do not suffer from such problem. However, such wavelet based relay requires a certain sampling frequency for its analysis, which may have some impact on the new trend of interconnected protection system. According to IEEE standards (C57.116) and (1547), the requirement of 6 cycles of fault duration is valid for conventional and newer interconnected power transformer protection system. This research introduces a new dqWPT-based hybrid technique for the protection of power transformers to be integrated with the operation and control circuits without affecting their performance. The.
Author: Adel Aktaibi Publisher: ISBN: Category : Languages : en Pages :
Book Description
Detecting and identifying the disturbances in power transformers have always been challenging tasks for accurate and reliable protection of power transformers. Several approaches have been tested for designing protective devices such as DFT, ANN, fuzzy logic and wavelets etc. The modern power system is highly polluted with harmonics, and the transient disturbances usually are non-stationary and non-periodic. Thus, these techniques may not be adequate for protection of newer power transformers. Current research indicates that the wavelet packet transform (WPT) provides fast and accurate distinguishing criteria for this purpose, because WPT do not suffer from such problem. However, such wavelet based relay requires a certain sampling frequency for its analysis, which may have some impact on the new trend of interconnected protection system. According to IEEE standards (C57.116) and (1547), the requirement of 6 cycles of fault duration is valid for conventional and newer interconnected power transformer protection system. This research introduces a new dqWPT-based hybrid technique for the protection of power transformers to be integrated with the operation and control circuits without affecting their performance. The.
Author: Dharmesh Patel Publisher: Springer Nature ISBN: 9811567638 Category : Technology & Engineering Languages : en Pages : 217
Book Description
This book provides a comprehensive overview of protection schemes used for power transformers and describes the internal fault conditions and external abnormalities that may disrupt the operation of a power transformer. It also highlights the issues of current protective schemes, which pose several challenges in terms of the detection of internal faults and abnormalities, including computational burden, reduced accuracy, difficulty to implement, increased cost, computational complexity, impermeability to high resistance faults (HRF), and malfunction in conditions like cross-country fault. To address these problems, the book develops an effective novel transformer protection scheme that can eliminate all the said difficulties using an innovative algorithm. Given its scope, it is a useful resource for researchers and practitioners working in the field of power system protection, allowing them to design novel protection schemes, and providing insights into the hardware validation of developed technique.
Author: Hannu Olkkonen Publisher: IntechOpen ISBN: 9789533076546 Category : Computers Languages : en Pages : 380
Book Description
The discrete wavelet transform (DWT) algorithms have a firm position in processing of signals in several areas of research and industry. As DWT provides both octave-scale frequency and spatial timing of the analyzed signal, it is constantly used to solve and treat more and more advanced problems. The present book: Discrete Wavelet Transforms - Biomedical Applications reviews the recent progress in discrete wavelet transform algorithms and applications. The book reviews the recent progress in DWT algorithms for biomedical applications. The book covers a wide range of architectures (e.g. lifting, shift invariance, multi-scale analysis) for constructing DWTs. The book chapters are organized into four major parts. Part I describes the progress in implementations of the DWT algorithms in biomedical signal analysis. Applications include compression and filtering of biomedical signals, DWT based selection of salient EEG frequency band, shift invariant DWTs for multiscale analysis and DWT assisted heart sound analysis. Part II addresses speech analysis, modeling and understanding of speech and speaker recognition. Part III focuses biosensor applications such as calibration of enzymatic sensors, multiscale analysis of wireless capsule endoscopy recordings, DWT assisted electronic nose analysis and optical fibre sensor analyses. Finally, Part IV describes DWT algorithms for tools in identification and diagnostics: identification based on hand geometry, identification of species groupings, object detection and tracking, DWT signatures and diagnostics for assessment of ICU agitation-sedation controllers and DWT based diagnostics of power transformers.The chapters of the present book consist of both tutorial and highly advanced material. Therefore, the book is intended to be a reference text for graduate students and researchers to obtain state-of-the-art knowledge on specific applications.
Author: Akhtar Kalam Publisher: Springer Nature ISBN: 9811502145 Category : Technology & Engineering Languages : en Pages : 1011
Book Description
The book compiles the research works related to smart solutions concept in context to smart energy systems, maintaining electrical grid discipline and resiliency, computational collective intelligence consisted of interaction between smart devices, smart environments and smart interactions, as well as information technology support for such areas. It includes high-quality papers presented in the International Conference on Intelligent Computing Techniques for Smart Energy Systems organized by Manipal University Jaipur. This book will motivate scholars to work in these areas. The book also prophesies their approach to be used for the business and the humanitarian technology development as research proposal to various government organizations for funding approval.
Author: Amjad Anvari-Moghaddam Publisher: Springer Nature ISBN: 3030597504 Category : Technology & Engineering Languages : en Pages : 643
Book Description
This book provides a comprehensive overview on the latest developments in the control, operation, and protection of microgrids. It provides readers with a solid approach to analyzing and understanding the salient features of modern control and operation management techniques applied to these systems, and presents practical methods with examples and case studies from actual and modeled microgrids. The book also discusses emerging concepts, key drivers and new players in microgrids, and local energy markets while addressing various aspects from day-ahead scheduling to real-time testing of microgrids. The book will be a valuable resource for researchers who are focused on control concepts, AC, DC, and AC/DC microgrids, as well as those working in the related areas of energy engineering, operations research and its applications to energy systems. Presents modern operation, control and protection techniques with applications to real world and emulated microgrids; Discusses emerging concepts, key drivers and new players in microgrids and local energy markets; Addresses various aspects from day-ahead scheduling to real-time testing of microgrids.
Author: Adel Aktaibi
Author: Adel Aktaibi
Author: Saleh A. M. Saleh
Author: Dharmesh Patel
Author: Hannu Olkkonen
Author: Adel Aktaibi
Author: M. A. Rahman
Author: Amitabha Gangopadhyay
Author: Tien Tam Nguyen
Author: Akhtar Kalam
Author: Amjad Anvari-Moghaddam