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. Subsynchronous resonance and its mitigation for power system with. Pdf simulation and analysis of subsynchronous resonance in. 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. New effective method of subsynchronous resonance detection maciej orman, przemyslaw balcerek, michal orkisz abstract the paper presents the novel approach for detection of subsynchronous resonance phenomenon ssr in a series compensated transmission system. Compensation 60% in the line 49 produces a similar effect for the second torsional modes of machines 1, 2 and 4. Subsynchronous resonance in power systems provides in depth guidance toward the parameters, modeling, and analysis of this complex subclass of power systems. Subsynchronous resonance and its mitigation for power system with unified power flow controller. Analysis of subsynchronous resonance effect in series compensated line with booster transformer international journal of electrical and electronics engineering ijeee, issn print. Subsynchronous resonance article about subsynchronous. Currents flowing in the ac network have two components. An abstract of the thesis of connecting repositories. Pdf analysis and mitigation of subsynchronous resonance due to. Subsynchronous resonance in doublyfed induction generator based wind farms selam chernet c selam chernet, 2016.
Beginning about 1950, series capacitors were installed in long alternatingcurrent. Analysis of subsynchronous resonance in a multimachine power. With the use of above software, the first benchmark model is developed and simulated. Analysis of subsynchronous resonance in power systems power. Subsynchronous resonance is a condition that can exist on a power system wherein the network has natural frequencies that fall below the nominal 60 hertz of the network applied voltages. Emphasizing field testing to determine the data required, this book facilitates thorough and efficient oscillation and damping. Case studies and experiences with subsynchronous resonance ssr detection technique zoran gajic1, stefan roxenborg1, tord bengtsson1, sture lindahl2, perolof lindstrom3, hakan eriksson3, marcus lindstrom4 1 abb ab, sweden 2 gothia power ab, sweden 3 svenska kraftnat, sweden 4 forsmarks kraftgrupp ab, sweden stefan. Subsynchronous resonance in power systems by paul m. Analysis of subsynchronous resonance in power systems by k. Damping of torsional oscillations a dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of doctor of philosophy major. Applicability in modern power systems a new era of power systems most of the hvac lines are series compensated. Application of bifurcation theory to subsynchronous resonance in power systems by ahmad m. Subsynchronous resonance in power systems pdf free download.
Damping of subsynchronous resonance using a voltage source converterbased highvoltage directcurrent link in a seriescompensated great britain transmission network. Subsynchronous resonance in doublyfed induction generator. Analysis of subsynchronous frequency interactions in. Harb abstract the effect of thyristorcontrolled series capacitor tcsc and its controller gain on bifurcations of subsynchronous resonance ssr in power system are studied. Three aspects of subsynchronous resonance ssr related problems in power. Analysis of subsynchronous resonance in power systems kluwer international series in engineering and computer science, issn 08933405 volume 471 of kluwer international series in engineering and computer scinece. The resonance between a seriescapacitorcompensated electric system and the mechanical springmass system of a turbinegenerator at subsynchronous frequencies, that is, at frequencies that are less than the synchronous frequency. Subsynchronous resonance screening study for the pjm regional. 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. Edris s fifteenth national power systems conference npsc, iit bombay, december 2008 535. This system is an ieee benchmark 1 used to study subsynchronous resonance and particularly torque amplification after a fault on a seriescompensated power system. Analysis of subsynchronous resonance in power systems power electronics and power systems kindle edition by k. A novel approach for damping subsynchronous resonance using a.
Subsynchronous resonance in power systems eigenvalues and. New effective method of subsynchronous resonance detection. Analysis of subsynchronous resonance in power systems k. Analysis of subsynchronous resonance in power systems book. Anderson pm, agrawal bl, vaness je 1990 subsynchronous resonance in power system. The subsynchronous resonance ssr characteristics of a series. Subsynchronous resonance will become an important network condition to investigate when the new technologies are introduced in power systems. After 2nd failure in 1971 cause was identified as subsynchronous resonance interaction with nearby series capacitors. Therefore, proper understanding and analysis of ssr is to be carried out while planning series capacitor compensation in power systems. Mathematical calculations for subsynchronous system modeling.
Bhavik prajapati, vadodaragujarat,india abstractssr basically an electrical power system condition where electrical network exchange energy with the turbine generator at one or more natural. Ssr is a potential phenomenon which may arise in a power system when the mechanical system turbinegenerator exchanges energy with the electrical network 45. Nayfeh electrical engineering abstract a bifurcation analysis is used to investigate the complex dynamics of two heavily loaded singlemachine in nitebusbar power systems modeling the characteristics of the board. Subsynchronous resonance accessscience from mcgrawhill.
Under all these circumstances, there is a risk of ssr conditions. Oct 31, 1998 analysis of subsynchronous resonance in power systems book. Design of subsynchronous resonance protection and reduction. Electrical engineering by kim touy khu in charge of major work approved iowa state university ames, iowa 1977. It consists in a single generator 600 mva22kv60 hz3600 rpm connected to an infinite bus via two transmission lines, one of which is 55% seriescompensated. Subsynchronous resonance is an electric power system condition. Possibilities of having sub synchronous frequency interactions are high. This book provides a tutorial description of the mathematical models and equation formulations that are required for the study of a special class of dynamic power system problems, namely subsynchronous resonance ssr. Subsynchronous oscillation is an electric power system condition where the electric network exchanges significant energy with a turbinegenerator at one or more of the natural frequencies of the combined system below the synchronous frequency of the system following a disturbance from equilibrium. With 90% compensation machines 2, 3, 4 and 5 have low damping as the subsynchronous flux frequency becomes close to the machine torsional frequencies. Time constant for damping is in the order of a few seconds up to half a minute. Steam turbine and governor system subsynchronous resonance. Analysis of subsynchronous resonance in power systems. Pdf control strategy of unified power flow controller upfc utilizing dq decoupling control is deduced in this paper.
Subsynchronous resonance is an electric power system condition where the electric. Over 10 million scientific documents at your fingertips. Pdf simulation and analysis of subsynchronous resonance. Mirshekar, optimal control of svc for subsynchronous resonance stability in typical power system, in proceedings of the ieee international symposium on industrial electronics isie 01. Torsional mechanical damping probably comes mainly from the steambut also from couplings. 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. Subsynchronous resonance file exchange matlab central. There are two other types of subsynchronous resonance, the induction generator effect and torque amplification. Since the early 1930s, numerous researchers have addressed issues relating to these problems. Pdf subsynchronous resonance and its mitigation for power.
Subsynchronous resonance risk assessment in interconnected. System configuration the system considered in the present work is the ieee second benchmark model 5 with additional. Download it once and read it on your kindle device, pc, phones or tablets. Mechanical shaft oscillations and interaction with the electrical power system. This should include, the wiley titles, and the specific portion of the content you wish to reuse e. Analysis of subsynchronous resonance in power systems abstract approved. Subsynchronous resonance mitigation using variablespeed wind. 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.
Other readers will always be interested in your opinion of the books youve read. Shaft torque amplification transient shaft stresses. Mar 21, 2011 subsynchronous resonance is a phenomenon in which the resonant frequency of the turbine generator shaft coincides with a natural resonant frequency of the electrical system such that there is a sustained, cyclic exchange of energy between the mechanical shaft and the electrical system. 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 ssr is a potential problem in power systems having series. Application of bifurcation theory to subsynchronous resonance. Case studies and experiences with subsynchronous resonance. Apr 27, 2015 subsynchronous resonance is an electric power system condition where the electric network exchanges energy with a turbine at one or more of the natural fequencies of the combined system below the synchronous frequency of the system. Series compensation in the vicinity of large power plants raises concerns about the potential for subsynchronous resonance ssr interaction. This work proposes a strategy to mitigate subsynchronous resonance ssr in synchronous generators using variablespeed wind energy conversion systems wecss based on full converter wind turbines. Subsynchronous resonance ssr problems in series compensated steamturbine power systems coexist with the beneficial effects provided by the series capacitors.