Subsynchrone Resonanzen
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Subsynchronous Resonance In Power Systems
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Author : Paul M. Anderson
language : en
Publisher: John Wiley & Sons
Release Date : 1999-02-02
Subsynchronous Resonance In Power Systems written by Paul M. Anderson and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-02-02 with Technology & Engineering categories.
Mathematical calculations for subsynchronous system modeling Subsynchronous Resonance in Power Systems provides in-depth guidance toward the parameters, modeling, and analysis of this complex subclass of power systems. Emphasizing field testing to determine the data required, this book facilitates thorough and efficient oscillation and damping modeling using eigenvalues of a system's linear model. Expert discussion provides step-by-step instruction for generator, network, and turbine-generator shaft models, followed by detailed tutorials for model testing and analysis based on IEEE, CORPALS, and SSR eigenvalue analysis. Comprehensive in scope and practical in focus, this book is an invaluable resource for anyone working with frequencies below 60 Hz.
Analysis Of Subsynchronous Resonance In Power Systems
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Author : K.R. Padiyar
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Analysis Of Subsynchronous Resonance In Power Systems written by K.R. Padiyar and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
4. 2 Analysis of induction generator effect: frequency scanning method 83 4. 3 Analysis of torsional interaction(TI) 87 4. 4 State equations and eigenvalue analysis 96 4. 5 An algorithm for computing torsional modes 108 4. 6 Countermeasures for SSR III 4. 7 Torsional oscillations in parallel connected turbine generators 120 121 5. INTERACTIONS WITH POWER SYSTEM STABILIZER 5. 1 Introduction 121 5. 2 Basic concept in the application of PSS 122 5. 3 Design of PSS 126 5. 4 Torsional interaction with PSS 130 5. 5 A case study 132 6. INTERACTIONS WITH HVDC CONVERTER CONTROL 137 6. 1 Introduction 137 6. 2 HVDC converters and control 138 6. 3 Modelling of HVDC system for study of torsional interactions 147 6. 4 Analysis of torsional interactions -A simplified approach 153 6. 5 A case study 156 6. 6 A simplified damping torque analysis 161 6. 7 Control of torsional interaction 167 7. INTERACTIONS WITH SHUNT COMPENSATORS 169 7. 1 Introduction 169 7. 2 Static Var Compensator 171 7 . 3 Torsional Interactions with SVC 186 7. 4 Static Condenser(STATCON) 189 7. 5 Torsional interactions with STATCON 196 7. 6 A simplified analysis of torsional interaction with voltage controller 200 8. INTERACTIONS WITH SERIES COMPENSATORS 205 8. 1 Introduction 205 8. 2 Thyristor Controlled Series Compensator 206 8. 3 Modelling of TCSC for SSR studies 216 8. 4 Mitigation of SSR with TCSC 223 8. 5 Static Synchronous Series Compensator (SSSC) 229 8.
Risk Based Assessment Of Subsynchronous Resonance In Ac Dc Systems
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Author : Atia Adrees
language : en
Publisher: Springer
Release Date : 2016-10-04
Risk Based Assessment Of Subsynchronous Resonance In Ac Dc Systems written by Atia Adrees and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-04 with Technology & Engineering categories.
This relevant and timely thesis presents the pioneering use of risk-based assessment tools to analyse the interaction between electrical and mechanical systems in mixed AC/DC power networks at subsynchronous frequencies. It also discusses assessing the effect of uncertainties in the mechanical parameters of a turbine generator on SSR in a meshed network with both symmetrical and asymmetrical compensation systems. The research presented has resulted in 12 publications including three top international journal papers (IEEE Transactions on Power Systems) and nine international conference publications, including two award-winning papers.
Suppression And Avoidance Of Subsynchronous Resonance In Synchronous Generators
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Author : Mithqal M. Sartawi
language : en
Publisher: 1978.
Release Date : 1978
Suppression And Avoidance Of Subsynchronous Resonance In Synchronous Generators written by Mithqal M. Sartawi and has been published by 1978. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Electric motors, Synchronous categories.
Analysis And Mitigating Of Subsynchronous Resonance In Power System Integrated With Pv Power Station
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Author : Sravan Kumar Mittapally
language : en
Publisher:
Release Date : 2018
Analysis And Mitigating Of Subsynchronous Resonance In Power System Integrated With Pv Power Station written by Sravan Kumar Mittapally and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Electronic dissertations categories.
Conventionally transmission line power transfer capability can be increased by inserting the series compensation into the transmission lines. Though series compensation is an economical solution compared to building a new transmission line, it brings the risk of Sub-Synchronous Resonance in turbine-generator system-based power plants. In literature mitigation of SSR was actively studied using wind turbine generators and FACTS devices, where certain type of WTGs is vulnerable to SSR and FACTS devices are expensive and are not capable to exchange active power with the grid. The structure of PV farms can bring the can bring the capabilities of WTGs and FACTS devices together while addressing their problems at the same time. Among different renewables wind and solar are the fastest growing, according to DOE SunShot initiative studies by 2050 solar serves an estimated 27% of the U.S. electricity needs. The rapid growth in utility connected PV farms has opened new possibilities, and due to its flexibility and dispatchability PV farms can handle the grid support functions more effectively, whereas its ability to mitigate the SSR is rarely investigated. This thesis addresses the potential of PV Power Station to mitigate SSR problem particularly torque amplification in series compensated systems by augmenting the GSC control loop with damping controller using a control signal which is closely related to the network resonant mode, utility scale PV farms are a promising solution to combat the increasing demand and grid support functions simultaneously. The simulation studies are performed in MATLAB/Simulink software using IEEE Second Benchmark Model (SBM) for SSR studies.
Analysis And Control Of Subsynchronous Resonance
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Author : IEEE Power Engineering Society
language : en
Publisher:
Release Date : 1976
Analysis And Control Of Subsynchronous Resonance written by IEEE Power Engineering Society and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Electric machinery, Synchronous categories.
Damping Of Subsynchronous Resonance And Nonlinear Dynamics In Thyristor Switching Circuits
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Author : Rajesh Rajaraman
language : en
Publisher:
Release Date : 1996
Damping Of Subsynchronous Resonance And Nonlinear Dynamics In Thyristor Switching Circuits written by Rajesh Rajaraman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Analysis Of Subsynchronous Resonance In Power Systems
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Author : Wenchun Zhu
language : en
Publisher:
Release Date : 1994
Analysis Of Subsynchronous Resonance In Power Systems written by Wenchun Zhu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Electric power systems categories.
Three aspects of Subsynchronous Resonance (SSR) related problems in power systems are addressed in this dissertation which aims at contributing to a better understanding of these problems. Subsynchronous Resonance (SSR) problems in series compensated steam-turbine power systems co-exist with the beneficial effects provided by the series capacitors. Since the early 1930s, numerous researchers have addressed issues relating to these problems. The development of a generalized frequency scan method for analyzing SSR in a Single-Machine Infinite-Bus (SMIB) power system equipped with fixed series capacitor compensation is presented. This method overcomes shortcomings present in the traditional frequency scan technique which is widely used in power system analysis. It has been noticed that there are nonlinear dynamic phenomena in power systems which can not be explained by linear system theory. This includes limited oscillations in a power system when it experiences SSR at a frequency close to one of the system modes. The phenomenon can be explained by Hopf bifurcations. This dissertation presents an analysis for a high dimensional model of a SMIB power system equipped with fixed series capacitor compensation. The results obtained can lead to a more precise understanding of this phenomenon than those available to date which use perturbation methods and highly simplified second-order power system models. Compared with fixed series capacitor compensation in power systems, the newly developed Thyristor Controlled Series Compensation (TCSC) scheme has some well known advantages with regard to flexible power system control. It has been noted that vernier mode TCSC operation can provide for SSR mitigation. In this thesis, such beneficial effect is demonstrated and analyzed for a simplified North-Western American Power System (NWAPS) model, based on EMTP simulations. Issues relating to modelling and simulation of power system and TCSC are addressed.
Analysis Of Sub Synchronous Resonance Ssr In Doubly Fed Induction Generator Dfig Based Wind Farms
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Author : Hossein Ali Mohammadpour
language : en
Publisher: Springer Nature
Release Date : 2022-05-31
Analysis Of Sub Synchronous Resonance Ssr In Doubly Fed Induction Generator Dfig Based Wind Farms written by Hossein Ali Mohammadpour and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-31 with Technology & Engineering categories.
Wind power penetration is rapidly increasing in today's energy generation industry. In particular, the doubly-fed induction generator (DFIG) has become a very popular option in wind farms, due to its cost advantage compared with fully rated converter-based systems. Wind farms are frequently located in remote areas, far from the bulk of electric power users, and require long transmission lines to connect to the grid. Series capacitive compensation of DFIG-based wind farm is an economical way to increase the power transfer capability of the transmission line connecting the wind farm to the grid. For example, a study performed by ABB reveals that increasing the power transfer capability of an existing transmission line from 1300 MW to 2000 MW using series compensation is 90% less expensive than building a new transmission line. However, a factor hindering the extensive use of series capacitive compensation is the potential risk of subsynchronous resonance (SSR). The SSR is a condition where the wind farm exchanges energy with the electric network, to which it is connected, at one or more natural frequencies of the electric or mechanical part of the combined system, comprising the wind farm and the network, and the frequency of the exchanged energy is below the fundamental frequency of the system. This oscillatory phenomenon may cause severe damage in the wind farm, if not prevented. Therefore, this book studies the SSR phenomenon in a capacitive series compensated wind farm. A DFIG-based wind farm, which is connected to a series compensated transmission line, is considered as a case study. The book consists of two main parts: Small-signal modeling of DFIG for SSR analysis: This part presents a step-by-step tutorial on modal analysis of a DFIG-based series compensated wind farm using Matlab/Simulink. The model of the system includes wind turbine aerodynamics, a 6th order induction generator, a 2nd order two-mass shaft system, a 4th order series compensated transmission line, a 4th order rotor-side converter (RSC) controller and a 4th order grid-side converter (GSC) controller, and a 1st order DC-link model. The relevant modes are identified using participation factor analysis. Definition of the SSR in DFIG-based wind farms: This part mainly focuses on the identification and definition of the main types of SSR that occur in DFIG wind farms, namely: (1) induction generator effect (SSIGE), (2) torsional interactions (SSTI), and (3) control interactions (SSCI).
Study Of Subsynchronous Resonance And Its Countermeasure Using Static Var Compensator
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Author :
language : en
Publisher:
Release Date :
Study Of Subsynchronous Resonance And Its Countermeasure Using Static Var Compensator written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
This project includes the study of Subsynchronous resonance (SSR) phenomenon which occurs in a power system having series capacitor compensated transmission line. Static VAR compensators can be used to damp SSR oscillations besides controlling the system voltage. The First IEEE benchmark model and eigenvalue techniques are applied in the project to study the behavior of turbo-generator connected to the series compensated transmission line.