Voltage Stability Analysis with High Distributed Generation (DG) Penetration

Voltage Stability Analysis with High Distributed Generation (DG) Penetration

Author: Rashid Al-Abri

Publisher:

Published: 2012

Total Pages: 121

ISBN-13:

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Interest in Distributed Generation (DG) in power system networks has been growing rapidly. This increase can be explained by factors such as environmental concerns, the restructuring of electricity businesses, and the development of technologies for small-scale power generation. DG units are typically connected so as to work in parallel with the utility grid; however, with the increased penetration level of these units and the advancements in unit's control techniques, there is a great possibility for these units to be operated in an autonomous mode known as a microgrid. Integrating DG units into distribution systems can have an impact on different practices such as voltage profile, power flow, power quality, stability, reliability, and protection. The impact of the DG units on stability problem can be further classified into three issues: voltage stability, angle stability, and frequency stability. As both angle and frequency stability are not often seen in distribution systems, voltage stability is considered to be the most significant in such systems. In fact, the distribution system in its typical design doesn't suffer from any stability problems, given that all its active and reactive supplies are guaranteed through the substation. However, the following facts alter this situation: - With the development of economy, load demands in distribution networks are sharply increasing. Hence, the distribution networks are operating more close to the voltage instability boundaries. - The integration of distributed generation in distribution system introduces possibility of encountering some active/reactive power mismatches resulting in some stability concerns at the distribution level. Motivated by these facts, the target of this thesis is to investigate, analyze and enhance the voltage stability of distribution systems with high penetration of distributed generation. This study is important for the utilities because it can be applied with Connection Impact Assessment (CIA). The study can be added as a complement assessment to study the impacts of the installation of DG units on voltage stability.


Wide Area Power Systems Stability, Protection, and Security

Wide Area Power Systems Stability, Protection, and Security

Author: Hassan Haes Alhelou

Publisher: Springer Nature

Published: 2020-09-21

Total Pages: 614

ISBN-13: 3030542750

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This book proposes new control and protection schemes to improve the overall stability and security of future wide-area power systems. It focuses on the high penetration levels of renewable energy sources and distributed generation, particularly with the trend towards smart grids. The control methods discussed can improve the overall stability in normal and abnormal operation conditions, while the protection methods presented can be used to ensure the secure operation of systems under most severe contingencies. Presenting stability, security, and protection methods for power systems in one concise volume, this book takes the reader on a journey from concepts and fundamentals to the latest and future trends in each topic covered, making it an informative and intriguing read for researchers, graduate students, and practitioners alike.


Robust Control for Grid Voltage Stability: High Penetration of Renewable Energy

Robust Control for Grid Voltage Stability: High Penetration of Renewable Energy

Author: Jahangir Hossain

Publisher: Springer

Published: 2014-07-07

Total Pages: 320

ISBN-13: 9812871160

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This book makes the area of integration of renewable energy into the existing electricity grid accessible to engineers and researchers. This is a self-contained text which has models of power system devices and control theory necessary to understand and tune controllers in use currently. The new research in renewable energy integration is put into perspective by comparing the change in the system dynamics as compared to the traditional electricity grid. The emergence of the voltage stability problem is motivated by extensive examples. Various methods to mitigate this problem are discussed bringing out their merits clearly. As a solution to the voltage stability problem, the book covers the use of FACTS devices and basic control methods. An important contribution of this book is to introduce advanced control methods for voltage stability. It covers the application of output feedback methods with a special emphasis on how to bound modelling uncertainties and the use of robust control theory to design controllers for practical power systems. Special emphasis is given to designing controllers for FACTS devices to improve low-voltage ride-through capability of induction generators. As generally PV is connected in low voltage distribution area, this book also provides a systematic control design for the PV unit in distribution systems. The theory is amply illustrated with large IEEE Test systems with multiple generators and dynamic load. Controllers are designed using Matlab and tested using full system models in PSSE.


Renewable Integrated Power System Stability and Control

Renewable Integrated Power System Stability and Control

Author: Hêmin Golpîra

Publisher: John Wiley & Sons

Published: 2021-03-24

Total Pages: 322

ISBN-13: 1119689775

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RENEWABLE INTEGRATED POWER SYSTEM STABILITY AND CONTROL Discover new challenges and hot topics in the field of penetrated power grids in this brand-new interdisciplinary resource Renewable Integrated Power System Stability and Control delivers a comprehensive exploration of penetrated grid dynamic analysis and new trends in power system modeling and dynamic equivalencing. The book summarizes long-term academic research outcomes and contributions and exploits the authors’ extensive practical experiences in power system dynamics and stability to offer readers an insightful analysis of modern power grid infrastructure. In addition to the basic principles of penetrated power system modeling, model reduction, and model derivation, the book discusses inertia challenge requirements and control levels, as well as recent advances in visualization of virtual synchronous generators and their associated effects on system performance. The physical constraints and engineering considerations of advanced control schemes are deliberated at length. Renewable Integrated Power System Stability and Control also considers robust and adaptive control strategies using real-time simulations and experimental studies. Readers will benefit from the inclusion of: A thorough introduction to power systems, including time horizon studies, structure, power generation options, energy storage systems, and microgrids An exploration of renewable integrated power grid modeling, including basic principles, host grid modeling, and grid-connected MG equivalent models A study of virtual inertia, including grid stability enhancement, simulations, and experimental results A discussion of renewable integrated power grid stability and control, including small signal stability assessment and the frequency point of view Perfect for engineers and operators in power grids, as well as academics studying the technology, Renewable Integrated Power System Stability and Control will also earn a place in the libraries of students in Electrical Engineering programs at the undergraduate and postgraduate levels who wish to improve their understanding of power system operation and control.


Voltage Stability Analysis of Power Systems with Doubly-fed Induction Generators Based Distributed Generation

Voltage Stability Analysis of Power Systems with Doubly-fed Induction Generators Based Distributed Generation

Author: Ayub Machiri Wanjala

Publisher:

Published: 2016

Total Pages: 226

ISBN-13:

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The increasing energy demand over the last few decades has led to more stresses on the power system. With the demand being equal to the available supply capacity and in some cases exceeding it, there is a need to increase the capacity of the electric system ensuring that the network security is maintained. Distributed Generation located in the Distribution Network provides the ability to meet the growing demand. With increasing concerns on the environmental impacts of conventional power stations, initiatives such as the Kyoto Protocol for Climate Change have encouraged the diversification and development of energy efficient systems. These systems rely on renewable energy sources such as wind, solar and tidal energy. However, the existing power system was not designed to include generating systems on the distribution network. As a result, the unplanned integrations of Distributed Generating Systems might cause some technical problems to the grid. Wind-based Distributed Generation Systems offer an economical and efficient solution. However, the incorporation of wind energy on the Distribution Network not only alters the power flow but in some cases results in imbalanced voltages at specific points in the network. Advances in technology has resulted in increased capacity of the Wind Energy Conversion System with some having the capability to generate more than 1MVA from a single turbine resulting in the possibility of higher Distributed Generation penetration levels on the Distribution Network. The main focus of this research is to analyse the impact of high Distributed Generating Systems penetration on the voltage stability of the network under various loading conditions. It will also analyse the control strategies to be employed to deal with any effects on the stability of the network.


2017 International Conference on Electromechanical and Power Systems (SIELMEN)

2017 International Conference on Electromechanical and Power Systems (SIELMEN)

Author: IEEE Staff

Publisher:

Published: 2017-10-11

Total Pages:

ISBN-13: 9781538618479

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Started like a pan Romanian forum, the conference has grown and reached the 11th edition attracting any specialists from different countries The aim of the conference is to provide an opportunity for academics, practitioners and researchers to debate new achievements or concepts, approaches and innovative practices within the continuously progressing world of electromechanical and power systems


Handbook of Distributed Generation

Handbook of Distributed Generation

Author: Ramesh Bansal

Publisher: Springer

Published: 2017-03-07

Total Pages: 813

ISBN-13: 3319513435

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This book features extensive coverage of all Distributed Energy Generation technologies, highlighting the technical, environmental and economic aspects of distributed resource integration, such as line loss reduction, protection, control, storage, power electronics, reliability improvement, and voltage profile optimization. It explains how electric power system planners, developers, operators, designers, regulators and policy makers can derive many benefits with increased penetration of distributed generation units into smart distribution networks. It further demonstrates how to best realize these benefits via skillful integration of distributed energy sources, based upon an understanding of the characteristics of loads and network configuration.


The proceedings of the 10th Frontier Academic Forum of Electrical Engineering (FAFEE2022)

The proceedings of the 10th Frontier Academic Forum of Electrical Engineering (FAFEE2022)

Author: Qingxin Yang

Publisher: Springer Nature

Published: 2023-09-14

Total Pages: 1290

ISBN-13: 9819934044

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This book includes the original, peer-reviewed research papers from the 10th Frontier Academic Forum of Electrical Engineering (FAFEE 2022), held in Xi’an, China, in August 2022. It gathers the latest research, innovations, and applications in the fields of Electrical Engineering. The topics it covers include electrical materials and equipment, electrical energy storage and device, power electronics and drives, new energy electric power system equipment, IntelliSense and intelligent equipment, biological electromagnetism and its applications, and insulation and discharge computation for power equipment. Given its scope, the book benefits all researchers, engineers, and graduate students who want to learn about cutting-edge advances in Electrical Engineering.


Renewable Integrated Power System Stability and Control

Renewable Integrated Power System Stability and Control

Author: Hêmin Golpîra

Publisher: John Wiley & Sons

Published: 2021-04-06

Total Pages: 322

ISBN-13: 1119689791

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RENEWABLE INTEGRATED POWER SYSTEM STABILITY AND CONTROL Discover new challenges and hot topics in the field of penetrated power grids in this brand-new interdisciplinary resource Renewable Integrated Power System Stability and Control delivers a comprehensive exploration of penetrated grid dynamic analysis and new trends in power system modeling and dynamic equivalencing. The book summarizes long-term academic research outcomes and contributions and exploits the authors’ extensive practical experiences in power system dynamics and stability to offer readers an insightful analysis of modern power grid infrastructure. In addition to the basic principles of penetrated power system modeling, model reduction, and model derivation, the book discusses inertia challenge requirements and control levels, as well as recent advances in visualization of virtual synchronous generators and their associated effects on system performance. The physical constraints and engineering considerations of advanced control schemes are deliberated at length. Renewable Integrated Power System Stability and Control also considers robust and adaptive control strategies using real-time simulations and experimental studies. Readers will benefit from the inclusion of: A thorough introduction to power systems, including time horizon studies, structure, power generation options, energy storage systems, and microgrids An exploration of renewable integrated power grid modeling, including basic principles, host grid modeling, and grid-connected MG equivalent models A study of virtual inertia, including grid stability enhancement, simulations, and experimental results A discussion of renewable integrated power grid stability and control, including small signal stability assessment and the frequency point of view Perfect for engineers and operators in power grids, as well as academics studying the technology, Renewable Integrated Power System Stability and Control will also earn a place in the libraries of students in Electrical Engineering programs at the undergraduate and postgraduate levels who wish to improve their understanding of power system operation and control.