This example shows subsynchronous resonance ssr in steam turbine and governor on a seriescompensated network. Elmarsafawy, use of frequencyscan techniques for subsynchronous resonance analysis of a practical series capacitor compensated ac network, proceedings of iee generation, transmission and distribution conference, vol. We do feel, however, that the user should have a sense of what the eigenprogram is used for and should be able to interpret the results of these calculations. Press, 1994, subsynchronous resonance in power systems ieee press, 1990. Oclcs webjunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.
Subsynchronous resonance ssr is a condition that can exist in a power system, especially for long. Control strategy of unified power flow controller upfc utilizing dq decoupling control is deduced in this paper, which can closely follow the control orders of the active and reactive power. 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 steamturbine power systems coexist with the beneficial effects provided by the series capacitors. Subsynchronous resonance subsynchronous oscillation is an electric power system condition where the electric network exchanges significant energy. 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. Subsynchronous resonance is an electric power system condition where the electric network exchanges energy with a turbine generator at one or more of the natural frequencies of the combined system below the synchronous frequency of the system. Analysis of subsynchronous resonance characteristics and. Subsynchronous resonance in power systems abstract approved. This paper first provides an overview of subsynchronous resonance ssr and the impact of series compensation on ssr, then other cases are mentioned other than series capacitor where it. Subsynchronous resonance in power systems eigenvalues and. Analysis of subsynchronous resonance in power systems.
Taking the vietnamese vungang thermal plants as an example, a shaft failure of vungang i. Subsynchronous resonance in power systems book, 1990. Subsynchronous resonance and its mitigation for power system with. Subsynchronous resonance and its mitigation for power system with unified power flow controller. Whenever the load on an alternator is increased, the rotor speed slightly decreases, this speed is called as subsynchronous speed. In power systems, the witness of complex nonlinear oscillations, which are not predicted by the classical eigenvalue analysis of a linearized model, has prompted a growing interest in geometric methods of nonlinear dynamics, especially bifurcation methods. Power system protection ieee press series on power engineering. Pdf control strategy of unified power flow controller upfc utilizing dq decoupling control is deduced in this paper, which can. Use features like bookmarks, note taking and highlighting while reading analysis of subsynchronous resonance in power systems power electronics and power systems.
Mathematical calculations for subsynchronous system modeling. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. Analysis of subsynchronous resonance in power systems core. Subsynchronous resonance in power systems pdf free download. Under all these circumstances, there is a risk of ssr conditions. Pdf overview of subsynchronous resonance analysis and control. Numerous and frequentlyupdated resource results are available from this search. Frequency scanning study of subsynchronous resonance in. The subsynchronous resonance ssr is an important problem in the power system, and especially the series compensated transmission lines may cause ssr in the turbine generators, such that it leads to the electrical instability at subsynchronous frequencies and potential turbinegenerator shaft failures. Subsynchronous resonance and factsnovel control strategy. The subsynchronous resonance ssr characteristics of a series compensated system equipped with upfc are studied, and the results reveal that ssr characteristics of the system may vary significantly with. Mathematical calculations for subsynchronous system modeling subsynchronous resonance in power systems provides indepth guidance toward the parameters, modeling, and analysis of this complex subclass of power systems.
Delivering full text access to the worlds highest quality technical literature in engineering and technology. Second benchmark model for computer simulation of subsynchronous resonance, ieee transactions on power apparatus and systems, vol. A bifurcation analysis of subsynchronous oscillations in. Since the early 1930s, numerous researchers have addressed issues relating to these problems. What is sub synchronous resonance in a power system. Pdf simulation and analysis of subsynchronous resonance. Khu, kim touy, subsynchronous resonance in power systems. Subsynchronous resonance is a phenomenon in which one or more of the resonant frequencies of the turbine generator shaft in thermal power units coincides through the generator with a natural resonant frequency of the electrical system with long radial transmission network with series capacitors such that there is a sustained, cyclic exchange of energy between. Resonance in power systems free ebook download as pdf file. Analysing subsynchronous resonance phenomena in the time. For a multimachine system which has a set of identical parallel turbinegenerators or nonidentical turbinegenerators having torsional modes of the same frequency, generators may suffer from the same mode of torsional interaction. Subsynchronous resonance in power systems detailed than the average engineer would find useful. Subsynchronous resonance in power systems edition 1 by.
System configuration the system considered in the present work is the ieee second benchmark model 5 with additional. Frequency scanning study of subsynchronous resonance in power systems. Download it once and read it on your kindle device, pc, phones or tablets. Analysis of subsynchronous resonance in power systems power electronics and power systems kindle edition by k. 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. Results of an investigation on the application of statcom for damping subsynchronous resonance ssr in a multimachine system is presented in this paper. This paper presents an overview of subsynchronous resonance issues in wind turbines including, analysis methods, modeling, the impact of control. Emphasizing field testing to determine the data required, this book facilitates thorough and efficient oscillation and damping modeling using eigenvalues of a systems linear. The rotor frequency at this speed is called as subsynchronous frequency. Ssr is a potential phenomenon which may arise in a power system when the mechanical system turbinegenerator exchanges energy with the electrical network 45.
Pdf subsynchronous resonance and its mitigation for power. Control strategy of unified power flow controller upfc utilizing dq decoupling control is deduced in this paper, which can closely follow the. Whether youve loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. Hodges, experience with 500 kv subsynchronous resonance and resulting turbine generator shaft damage at mohave generating station, ieee pes special publication, analysis and control of subsynchronous resonance, no. In this sense, this document stands as a background reference to the eigenvalue programs 4. Subsynchronous resonance accessscience from mcgrawhill. Analysis of subsynchronous resonance in power systems k. The subsynchronous resonance damping under different levels of series compensation in the network, and the effect of fault clearing time on the torque amplification are investigated. Study of subsynchronous resonance in power systems 1. Kulkarni,department of electrical engineering,iit bombay. With the use of above software, the first benchmark model is developed and simulated. Anderson is the author of analysis of faulted power systems ieee press, 1995 and coauthor of power system control and stability ieee press, 1994, subsynchronous resonance in power systems ieee press, 1990, and series compensation of power systems pblsh. Effects of subsynchronous resonance on power systems 9 iv. Get your kindle here, or download a free kindle reading app.
Excerpted from subsynchronous resonance in power systems by paul m. Subsynchronous resonance ssr problems in series compensated. Analysis of subsynchronous resonance effect in series compensated line with booster transformer international journal of electrical and electronics engineering ijeee, issn print. Pdf analysis and mitigation of subsynchronous resonance due to.
An abstract of the thesis of connecting repositories. Subsynchronous resonance in doublyfed induction generator based wind farms selam chernet c selam chernet, 2016. Subsynchronous resonance in power systems ebook, 1990. Therefore, proper understanding and analysis of ssr is to be carried out while planning series capacitor compensation in power systems.
Subsynchronous resonance and its mitigation for power. This paper presents a frequency scanning analysis for detecting the potential of subsynchronous resonance ssr in induction generator based wind farms. Subsynchronous resonance in power systems wileyieee. Other readers will always be interested in your opinion of the books youve read. Analysis of subsynchronous resonance in power systems free ebook download as pdf file. Readers guide to subsynchronous resonance ieee journals.
Shortly after the second event, it was determined that the torsional oscillations were caused by torsional interaction, which is a type of subsynchronous resonance ssr. There are two other types of subsynchronous resonance, the induction generator effect and torque amplification. Pdf subsynchronous resonance ssr is a potential problem in power systems having series compensated transmission lines. Simulation and analysis of subsynchronous resonance in a series compensated transmission system article pdf available in international journal of power electronics and drive systems 53. A single line diagram of the first benchmark model given by ieee committee for the study of subsynchronous resonance is as shown in figure 1. Subsynchronous resonance will become an important network condition to investigate when the new technologies are introduced in power systems. It can cause shaft fatigue and possible damage or failure of the generator involved. An idea is presented for damping ssr in power systems using a doubleorder svs auxiliary controller in combination with continuous controlled series compensation ccsc and an induction machine. Considering the rapid growth of wind turbines applications in power systems, the dynamic behavior of wind turbines, especially the subsynchronous resonance ssr is of interest to researchers. Pdf damping subsynchronous resonance in power systems.
Anderson, a noted expert on power systems, presents an analytical and technical. Overview of subsynchronous resonance analysis and control. Design of subsynchronous resonance protection and reduction of torsional interaction in power systems mahdi hedayati department of electrical engineering azad university, gonabad branch gonabad, iran abstractan ssr problem has been noticed and caused repeated triggering of the protection. Wind turbine subsynchronous resonance ssr doublefed induction generators dfig facts. Subsynchronous resonance in power systems provides indepth guidance toward the parameters, modeling, and analysis of this complex subclass of power systems. The mechanism of the subsynchronous resonance is well understood.
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