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Author: Gurveen Kaur
Publisher:
ISBN:
Category : Energy storage
Languages : en
Pages : 35
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Book Description
Distributed Generation (DG) is an electric power production that is capable of generating electricity from small energy sources. Renewable Energy Source generation refers to power generation from renewable sources like solar, tidal, geothermal, biomass, etc. From the past few years, distributed generation from renewable energy source in the United States has experienced tremendous increase owing to the targets set up by the state which accounts for DG penetration into Grid. High penetration of photovoltaic into the existing distribution networks might result in voltage increase in case renewable source generation crosses the demand on the consumer side. To deal with this challenge, use of energy storage systems is done and integrated with the renewable source generation. The excess energy generated from photovoltaic charges, the storage system during the day-time and the same stored energy helps in reducing the evening peak load. The energy storage system helps in reducing the intermittent issue of renewable energy source generation. This integration of Energy Storage system with Renewable energy source generation will impact the working of electric distribution grid. Parameters like Voltage control, power quality; the protection system, intensity and level of faults in the system and losses associated with the grid are few quantities in the distribution systems that get affected with above-mentioned integration. In the author's study, the Photovoltaic system with battery storage is integrated with the utility grid using MATLAB/Simulink Model. The model is use to study the impact of penetration of renewable source generation with storage on stability and voltage regulation.
Author: Gurveen Kaur
Publisher:
ISBN:
Category : Energy storage
Languages : en
Pages : 35
Get Book Here
Book Description
Distributed Generation (DG) is an electric power production that is capable of generating electricity from small energy sources. Renewable Energy Source generation refers to power generation from renewable sources like solar, tidal, geothermal, biomass, etc. From the past few years, distributed generation from renewable energy source in the United States has experienced tremendous increase owing to the targets set up by the state which accounts for DG penetration into Grid. High penetration of photovoltaic into the existing distribution networks might result in voltage increase in case renewable source generation crosses the demand on the consumer side. To deal with this challenge, use of energy storage systems is done and integrated with the renewable source generation. The excess energy generated from photovoltaic charges, the storage system during the day-time and the same stored energy helps in reducing the evening peak load. The energy storage system helps in reducing the intermittent issue of renewable energy source generation. This integration of Energy Storage system with Renewable energy source generation will impact the working of electric distribution grid. Parameters like Voltage control, power quality; the protection system, intensity and level of faults in the system and losses associated with the grid are few quantities in the distribution systems that get affected with above-mentioned integration. In the author's study, the Photovoltaic system with battery storage is integrated with the utility grid using MATLAB/Simulink Model. The model is use to study the impact of penetration of renewable source generation with storage on stability and voltage regulation.
Author: Adirak Kanchanaharuthai
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
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Book Description
The environmental and economic impact of fossil fuel generating plants has resulted in the need to find more efficient and clean sources of electricity power generation. As an alternative, promising power generation options such as renewable energy sources, especially wind energy, are receiving increased interest. This dissertation addresses some important problems in power system operations (stability and power quality) when renewable energy resources (generation and storage) are integrated into the conventional power system. In particular, the use of energy storage (STATCOM/Battery) to enhance the small-signal stability, transient stability, and voltage regulation of an electrical power system with renewable power generation is investigated as follows. 1) A linearized model of the nonlinear power system in the region of a steady-state operating point is used in conjunction with an LMI-based control design method, including D-stability, to achieve small-signal angle and frequency stability, voltage regulation, when the system is perturbed by changes in mechanical power inputs to the synchronous generators in the system. 2) A nonlinear model of the power systems with energy storage is used with an Interconnection and Damping Assignment-Passivity-Based Control design (IDA-PBC) framework to achieve transient power angle stability along with frequency and voltage regulation after the occurrence of a large disturbance (a symmetrical three-phase short circuit transmission line fault). 3) Using the combination of the IDA-PBC control law and a reduced-order nonlinear observer, voltage regulation and system stability enhancement are simultaneously accomplished following both temporary and permanent faults. To illustrate the effectiveness of the STATCOM/Battery to enhance small-signal and transient stability, the LMI-based controller design with D-stability and IDA-PBC controller design are validated using the following simulation studies: (1) a single machine infinite bus (SMIB) (2) a two-machine (synchronous generator and doubly-fed induction generator) connected to an infinite bus. For the small-signal case, simulation results show that the proposed controller can simultaneously achieve frequency and voltage regulation along with improved transient performance. For the large-signal case, the results show that the proposed controller provides improved critical clearing times (CCTs) and an enlarged domain of attraction (DOA) along with improved frequency and voltage regulation.
Author: Jahangir Hossain
Publisher: Springer
ISBN: 9812871160
Category : Technology & Engineering
Languages : en
Pages : 320
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Book Description
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.
Author: Asian Development Bank
Publisher: Asian Development Bank
ISBN: 9292614711
Category : Technology & Engineering
Languages : en
Pages : 123
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Book Description
This handbook serves as a guide to deploying battery energy storage technologies, specifically for distributed energy resources and flexibility resources. Battery energy storage technology is the most promising, rapidly developed technology as it provides higher efficiency and ease of control. With energy transition through decarbonization and decentralization, energy storage plays a significant role to enhance grid efficiency by alleviating volatility from demand and supply. Energy storage also contributes to the grid integration of renewable energy and promotion of microgrid.
Author: Bálint Németh
Publisher:
ISBN: 9783030378196
Category : Electronics
Languages : en
Pages : 115
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Book Description
This open access book comprises 10 high-level papers on research and innovation within the Flexitranstore Project that were presented at the FLEXITRANSTORE special session organized as part of the 21st International Symposium on High Voltage Engineering. FLEXITRANSTORE (An Integrated Platform for Increased FLEXIbility in smart TRANSmission grids with STORage Entities and large penetration of Renewable Energy Sources) aims to contribute to the development of a pan-European transmission network with high flexibility and high interconnection levels. This will facilitate the transformation of the current energy production mix by hosting an increasing share of renewable energy sources. Novel smart grid technologies, control and storage methods, and new market approaches will be developed, installed, demonstrated, and tested introducing flexibility to the European power system. FLEXITRANSTORE is developing a next-generation Flexible Energy Grid (FEG) that will be integrated into the European Internal Energy Market (IEM) through the valorization of flexibility services. This FEG addresses the capabilities of a power system to maintain continuous service in the face of rapid and large swings in supply or demand. As such, a wholesale market infrastructure and new business models within this integrated FEG must be upgraded for network players, and offer incentives for new ones to join, while at the same time demonstrating new business perspectives for cross-border resource management and energy trading.
Author: Lukas Sigrist
Publisher: CRC Press
ISBN: 1315351706
Category : Technology & Engineering
Languages : en
Pages : 295
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Book Description
A major concern of island power systems is frequency stability. A power system is said to be frequency stable if its generators are able to supply their loads at a frequency within acceptable limits after a disturbance. Frequency instability occurs if load-generation imbalances are not corrected in appropriate manner and time. Since island power systems are more sensitive to frequency instability than large ones due to the smaller number of generators online and the lower inertia, they require a larger amount of primary reserve per generator. This book provides a worldwide overview of island power systems, describing their main features and issues. Split into two parts, the first part examines the technical operation, and in particular, frequency stability of island power systems and its technical solutions, including more efficient underfrequency load-shedding schemes. The chapters explore both conventional and advanced load-shedding schemes and consider the improvement of these schemes by making them more robust and efficient. Advanced devices are modelled and analyzed to enhance frequency stability and reduce the need for load shedding. In the second part, the economic operation of island power systems is explored in detail. For that purpose, regulations and economic operations (centralized vs. market scheme) are reviewed by the authors. The authors discuss models for renewable energy sources and for advanced devices and systems such as demand-side management, energy storage systems, and electric vehicles. This book will be critical reading to all researchers and professionals in power system planning and engineering, electrical/power delivery, RES and control engineering. It will also be of interest to researchers in signal processing and telecommunications and renewable energy, as well as power system utility providers.
Author: Neehara Matheesha Janapriya
Publisher:
ISBN:
Category : Electric batteries
Languages : en
Pages : 146
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Book Description
In the backdrop of the deregulated environment with growing peak demand and constrained profit margins, distribution utilities are under increasing pressure to more effectively manage operational and capital expenditure, all without compromising reliability. The emergence of new Battery Energy Storage Systems incorporating efficient Power Electronics for energy conversion has opened up a new set of possible solutions to peak demand problems. The benefits of widely incorporating BESS in distribution networks are plenty. The usage of BESS enables Demand Side Management (DSM) options that can mitigate Peak Demand issues involving End of Line Voltage Drop, Line Thermal Limits and Transformer Rating by Peak Clipping (i.e. Load Levelling). BESS enabled DSM can also reduce stress on the Transmission Grid via Peak Clipping and may also reduce peak time whole sale electricity spot prices by decoupling generation from usage, thus reducing supply-demand issues. Increasing Energy Storage on the Power System increases stability and reliability. Some such instances are in that BESS provides backup power for critical loads and can compensate for voltage dips. In this thesis the effectiveness of Battery Energy Storage (BESS) in reducing end of line voltage issues is investigated. There is a strongly entrenched notion that voltage drop is most effectively combatted by reactive power management or control. This is based mainly on the assumption that the power system is highly inductive which is true for the most part, but not necessarily for medium voltage (MV) and low voltage (LV) portions of the distribution network. There is also the emergence of four quadrant Static Synchronous Compensators (STATCOM) that use BESS, which poses the need for an updated theory of shunt compensation. The role of Shunt VAR compensation on feeder voltage profiles and line losses is comprehensively covered in the literature but a unified approach to four-quadrant compensation and its effect on feeder voltage profile and losses is lacking. Hence, after a thorough review of Optimal Capacitor placement theory, the effect of injecting a combination of real and reactive power on a feeder is looked at. The role of real and reactive power flow to the loads is also looked at. The result have implications relevant to Four Quadrant Metering. A single phase equivalent analytical model is developed for a feeder with uniformly distributed continuous load. This model is numerically solved in MATLAB using the bvp5c Boundary Value Problem solver and is used for verifying and supplementing the aforementioned results. BESS is also highly important in the context of the drive for Green Energy. Renewable energy sources are generally quite intermittent and require integration with Energy Storage. Utilities are keen to exploit for purposes benefiting the distribution network, a possible increase in the future DG and BESS penetration by way of more domestic energy management systems on the network. In the literature there seems to be a lack of comprehensive understanding of the effect of load diversity on Aggregate Demand when Demand Side Management is implemented by way of home energy management systems implementing peak reduction schemes. An aggregate diversified load model is developed using MATLAB to illustrate the role of diversity in Demand Side Management. MATLAB algorithms are also developed for calculating Storage requirements from feeder demand data provided by Plant Information (PI) Systems. Algorithms are also developed for cleaning PI data before using them in DSM algorithms.
Author: Hêmin Golpîra
Publisher: John Wiley & Sons
ISBN: 1119689821
Category : Technology & Engineering
Languages : en
Pages : 320
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Book Description
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.
Author: Thongchart Kerdphol
Publisher: Springer Nature
ISBN: 3030579611
Category : Technology & Engineering
Languages : en
Pages : 259
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Book Description
This book provides a thorough understanding of the basic principles, synthesis, analysis, and control of virtual inertia systems. It uses the latest technical tools to mitigate power system stability and control problems under the presence of high distributed generators (DGs) and renewable energy sources (RESs) penetration. This book uses a simple virtual inertia control structure based on the frequency response model, complemented with various control methods and algorithms to achieve an adaptive virtual inertia control respect to the frequency stability and control issues. The chapters capture the important aspects in virtual inertia synthesis and control with the objective of solving the stability and control problems regarding the changes of system inertia caused by the integration of DGs/RESs. Different topics on the synthesis and application of virtual inertia are thoroughly covered with the description and analysis of numerous conventional and modern control methods for enhancing the full spectrum of power system stability and control. Filled with illustrative examples, this book gives the necessary fundamentals and insight into practical aspects. This book stimulates further research and offers practical solutions to real-world power system stability and control problems with respect to the system inertia variation triggered by the integration of RESs/DGs. It will be of use to engineers, academic researchers, and university students interested in power systems dynamics, analysis, stability and control.
Author: Amer Al-Hinai
Publisher: CRC Press
ISBN: 1000780198
Category : Technology & Engineering
Languages : en
Pages : 289
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Book Description
Enhancing the integration of renewable power generation from wind and solar into the traditional power network requires the mitigation of the vulnerabilities affecting the grid as a result of the intermittent nature of these resources. Variability and ramp events in power output are the key challenges to the system operators due to their impact on system balancing, reserves management, scheduling, and commitment of generation units. This book presents development of energy management system for renewable power generation (EMSRPG) tool that aims to achieve power-dispatching strategies based on forecasting renewable energy resources outputs to guarantee optimal dispatch of hybrid wind-solar photovoltaic power systems (HWSPS). The key selling points of the book include the following: Renewable energy management in modern and future smart power systems Energy management systems Modeling and simulations using a real-time digital simulator (RTDS) High penetration level of renewable energy sources Case studies based on Oman’s power systems and other power grids This book discusses the challenges of integrating renewable resources, including low inertia systems, hosting capacity limitations of existing power systems, and weak grids. It further examines the detailed topologies, operation principles, recent developments in control techniques, and stability of power systems with a large scale of renewables. Finally, it presents case studies of recent projects from around the world where dispatchable power plant techniques are used to enhance power system operation.
