Dynamic Modeling, Stability Analysis, and Controller Design for DC Distribution Systems - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Dynamic Modeling, Stability Analysis, and Controller Design for DC Distribution Systems write by Reza Ahmadi. This book was released on 2013. Dynamic Modeling, Stability Analysis, and Controller Design for DC Distribution Systems available in PDF, EPUB and Kindle. "The dc distribution systems or dc microgrids are known to be best suited for integration of renewable energy sources into the current power grid and are considered to be the key enabling technology for the development of future smart grid. Dc microgrids also benefit from better current capabilities of dc power lines, better short circuit protection, and transformer-less conversion of voltage levels, which result in higher efficiency, flexibility, and lower cost. While the idea of using a dc microgrid to interface distributed energy sources and modern loads to the power grid seems appealing at first, several issues must be addressed before this idea can be implemented fully. The configuration, stability, protection, economic operation, active management, and control of future dc microgrids are among the topics of interest for many researchers. The purpose of this dissertation is to investigate the dynamic behavior and stability of a future dc microgrid and to introduce new controller design techniques for the Line Regulating Converters (LRC) in a dc distribution system. Paper I is devoted to dynamic modeling of power converters in a dc distribution system. The terminal characteristics of tightly regulated power converters which are an important factor for stability analysis and controller design are modeled in this paper. Paper II derives the simplified model of a dc distribution system and employs the model for analyzing stability of the system. Paper III introduces two controller design methods for stabilizing the operation of the LRC in presence of downstream constant power loads in a dc distribution system. Paper IV builds upon paper III and introduces another controller design method which uses an external feedback loop between converters to improve performance and stability of the dc grid."--Abstract, page iv.
Distribution Power Systems and Power Quality
Distribution Power Systems and Power Quality - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Distribution Power Systems and Power Quality write by Birgitte Bak-Jensen. This book was released on 2020-06-16. Distribution Power Systems and Power Quality available in PDF, EPUB and Kindle. High penetration of fluctuating renewable power units, such as wind turbines and photo voltaic systems, and new heavy loads, such as electrical vehicles and heat pumps, which so far might not be controlled according to the actual distribution grid condition, but rather according to actual consumption of the devices, influences the distribution grid in several ways, and it may lead to voltage disturbances, frequency deviations and harmonic content beyond limits. Over voltages might be generated at power production which is too high, whereas under voltage might occur at heavy load situations; both phenomena might be seen at the same distribution radial, where harmonic injections can also come from the devices, if equipped with power converters. This has led to the main target object for this book being power quality in distribution grids. This book offers 10 papers regarding power quality issues at distribution grids. It looks into hosting capacity issues, stability analysis, reliability assessment, mitigation of voltage rise using reactor installation, power quality assessments, harmonic analysis and damping, frequency control in weak and isolated power systems, and the focus is therefore broad within the overall topic of power quality.
Stability Analysis and Controller Design of Local Model Networks
Stability Analysis and Controller Design of Local Model Networks - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Stability Analysis and Controller Design of Local Model Networks write by Christian Mayr. This book was released on 2021-06-21. Stability Analysis and Controller Design of Local Model Networks available in PDF, EPUB and Kindle. This book treats various methods for stability analysis and controller design of local model networks (LMNs). LMNs have proved to be a powerful tool in nonlinear dynamic system identification. Their system architecture is more suitable for controller design compared to alternative approximation methods. The main advantage is that linear controller design methods can be, at least locally, applied and combined with nonlinear optimization to calibrate stable state feedback as well as PID controller. The calibration of stable state-feedback controllers is based on the closed loop stability analysis methods. Here, global LMIs (Linear Matrix Inequalities) can be derived and numerically solved. For LMN based nonlinear PID controllers deriving global LMIs is not possible. Thus, two approaches are treated in this book. The first approach works iteratively to get LMIs in each iteration step. The second approach uses a genetic algorithm to determine the PID controller parameters where for each individual the stability is checked. It allows simultaneous enhancement of (competing) optimization criteria.
Pulsewidth Modulated DC-to-DC Power Conversion
Pulsewidth Modulated DC-to-DC Power Conversion - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Pulsewidth Modulated DC-to-DC Power Conversion write by Byungcho Choi. This book was released on 2021-10-04. Pulsewidth Modulated DC-to-DC Power Conversion available in PDF, EPUB and Kindle. ORGANIC REACTIONS CYCLIZATION REACTIONS OF NITROGEN-CENTERED RADICALS Stuart W. McCombie, Béatrice Quiclet-Sire, and Samir Z. Zard TRANSITION-METAL-CATALYZED AMINOOXYGENATION OF ALKENES Sherry R. Chemler, Dake Chen, Shuklendu D. Karyakarte, Jonathan M. Shikora, and Tomasz Wdowik
Power System Dynamics and Stability
Power System Dynamics and Stability - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Power System Dynamics and Stability write by Peter W. Sauer. This book was released on 1998. Power System Dynamics and Stability available in PDF, EPUB and Kindle. For a one-semester senior or beginning graduate level course in power system dynamics. This text begins with the fundamental laws for basic devices and systems in a mathematical modeling context. It includes systematic derivations of standard synchronous machine models with their fundamental controls. These individual models are interconnected for system analysis and simulation. Singular perturbation is used to derive and explain reduced-order models.
