Analysis of subsynchronous resonance in power systems. Analysis of subsynchronous resonance effect in series compensated line with booster transformer international journal of electrical and electronics engineering ijeee, issn print. Analysis of subsynchronous resonance in power systems power electronics and power systems pdf,, download ebookee alternative excellent tips for a better ebook reading experience. Subsynchronous resonance screening study for the pjm. 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. 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. 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. Subsynchronous resonance in power systems pdf free download. Pdf new effective method of subsynchronous resonance detection. System configuration the system considered in the present work is the ieee second benchmark model 5 with additional. Therefore, proper understanding and analysis of ssr is to be carried out while planning series capacitor compensation in power systems. 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 screening study for the pjm regional. Application of bifurcation theory to subsynchronous resonance in power systems by ahmad m.
We now combine the incremental shaft model of section 4. Subsynchronous resonance is an electric power system condition. Subsynchronous resonance will become an important network condition to investigate when the new technologies are introduced in power systems. A supplementary active and reactive power to be delivered by wecss located near synchronous generators is designed to reduce the ssr phenomenon.
Emphasizing field testing to determine the data required, this book facilitates thorough and efficient oscillation and damping modeling using eigenvalues of a system s. Nayfeh electrical engineering abstract a bifurcation analysis is used to investigate the complex dynamics of two heavily loaded singlemachinein nitebusbar power systems modeling the characteristics of the board. Subsynchronous resonance and its mitigation for power. Subsynchronous resonance in power systems provides in depth guidance toward the parameters, modeling, and analysis of this complex subclass of power systems. Anderson and fouad 1977 use different base quantities for voltage and. 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. 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. Pdf simulation and analysis of subsynchronous resonance in. Subsynchronous resonance is addressed in three categories,i. It can be sustained and amplified in power systems with series compensated lines or active devices for power flow or voltage control.
Systems that experience ssr exhibit dynamic oscillations at frequencies below the normal system base frequency 60 hz in north. Emphasizing field testing to determine the data required, this book facilitates thorough and efficient oscillation and damping modeling using eigenvalues of a systems linear model. With 90% compensation machines 2, 3, 4 and 5 have low damping as the subsynchronous flux frequency becomes close to the machine torsional frequencies. 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. Subsynchronous resonance ssr problems in series compensated. There are two other types of subsynchronous resonance, the induction generator effect and torque amplification.
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. Determination of study zone for subsynchronous oscillation. Sub synchronous resonance damping in interconnected power. 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. A novel approach for damping subsynchronous resonance. 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. Resonance in power systems, ieee press, new york, 1989. Abb performs advanced power system studies related to planning, upgrading and operation of power transmission and distribution systems, industrial power systems and traction power systems. 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. 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. Overview of subsynchronous resonance analysis and control in. Reduction of harmonic distortions and subsynchronous.
Pdf analysis and mitigation of subsynchronous resonance. International conference on power systems transients ipst 2003 in new orleans, usa 1 reduction of harmonic distortions and subsynchronous resonances in the pulsed power supply of a nuclear fusion experiment a. Subsynchronous resonance in power systems eigenvalues and. Effects of subsynchronous resonance on power systems 9 iv. This paper presents an overview of subsynchronous resonance issues in wind turbines including, analysis methods, modeling, the impact of control. Subsynchronous resonance accessscience from mcgrawhill. M anderson, power system protection, wileyieee press nov 25. Subsynchronous resonance and torsional interaction. Subsynchronous resonance mitigation using upfc in series. With the use of above software, the first benchmark model is developed and simulated. The subsynchronous resonance ssr characteristics of a series compensated system equipped with upfc are studied, and the results reveal that ssr characteristics of the. Design of subsynchronous resonance protection and reduction. Subsynchronous resonance subsynchronous oscillation is an electric power system condition where the electric network exchanges significant energy. Compensation 60% in the line 49 produces a similar effect for the second torsional modes of machines 1, 2 and 4.
Fractionalorder pi based statcom and upfc controller to. Under all these circumstances, there is a risk of ssr conditions. 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. Converter based controlled reactance for damping subsynchronous resonance antonio c. Subsynchronous torque interaction ssti is a well known phenomenon in high voltage ac networks. One may understand this type of device as a converter based controlled. Excerpted from subsynchronous resonance in power systems by paul m.
Case studies and experiences with subsynchronous resonance. Analysis of subsynchronous resonance in a multimachine power. Three aspects of subsynchronous resonance ssr related problems in power. Use features like bookmarks, note taking and highlighting while reading analysis of subsynchronous resonance in power systems power electronics and power. Watanabe abstractthis works presents a methodology to synthesize a controlled reactance based on power electronics converter. Sep 19, 2016 this research article proposes a powerful fractionalorder pi controller to mitigate the subsynchronous oscillations in turbinegenerator shaft due to subsynchronous resonance ssr with flexible ac transmission system devices such as static synchronous compensator statcom and unified power flow controller upfc. Analysis of subsynchronous resonance in power systems abstract approved. Subsynchronous resonance mitigation using upfc in series compensated dgs. The diminution of ssr is achieved by the raising of network damping at those. Pdf simulation and analysis of subsynchronous resonance. Analysis of subsynchronous resonance in power systems k. Submitted in the fulfillment of the academic requirements for the degree of doctor of philosophy in. Frequency scan results combine the capabilities of both the eigenvalue and emt. 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.
Oct 31, 1998 analysis of subsynchronous resonance in power systems book. Mathematical calculations for subsynchronous system modeling. Analysis of subsynchronous resonance in power systems power electronics and power systems kindle edition by k. Edris s fifteenth national power systems conference npsc, iit bombay, december 2008 535. Subsynchronous resonance is an electrical power system condition where. A supplementary active and reactive power to be delivered by wecss located near synchronous generators is designed to reduce the ssr. A novel control strategy for subsynchronous resonance mitigation using.
Analysis of subsynchronous resonance in a multimachine power system using series compensation. Subsynchronous resonance in doublyfed induction generator based wind farms selam chernet c selam chernet, 2016. Overview of subsynchronous resonance analysis and control. Ssr is a potential phenomenon which may arise in a power system when the mechanical system turbinegenerator exchanges energy with the electrical network 45. 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. 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. 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. Design of subsynchronous resonance protection and reduction of torsional interaction in power systems mahdi hedayati department of electrical engineering. 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. Download it once and read it on your kindle device, pc, phones or tablets. Sub synchronous resonance damping in interconnected power systems.
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. Application of bifurcation theory to subsynchronous resonance. Kumardamping subsynchronous resonance in power systems. Subsynchronous resonance mitigation using variablespeed. New effective method of subsynchronous resonance detection. Simulation and analysis of subsynchronous resonance in a series compensated transmission system article pdf available in international journal of. Steam turbine and governor system subsynchronous resonance. This system is an ieee benchmark 1 used to study subsynchronous resonance and particularly torque amplification after a fault on a seriescompensated power system. Subsynchronous resonance damping in interconnected. Analysis of subsynchronous resonance in a multimachine. Subsynchronous resonance in power systems provides indepth guidance toward the parameters, modeling, and analysis of this complex subclass of power systems.
Analysis of subsynchronous resonance in power systems by k. 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. Analysis of subsynchronous resonance in power systems book. In this paper,an important application of the second benchmark system 4and matlab 7is presented to study subsynchronous resonance that may occur in series compensated transmission systems in particular,the simulation of the torque amplification and eigenvalue analysis of the electrical network.
Subsynchronous resonance risk assessment in interconnected. Subsynchronous resonance in doublyfed induction generator. The subsynchronous component of current and voltage are derived from the. On the other hand the longer it takes to acquire the. This research article proposes a powerful fractionalorder pi controller to mitigate the subsynchronous oscillations in turbinegenerator shaft due to subsynchronous resonance ssr with flexible ac transmission system devices such as static synchronous compensator statcom and unified power flow controller upfc. This should include, the wiley titles, and the specific portion of the content you wish to reuse e. 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. Analysis of subsynchronous resonance in power systems power. Subsynchronous resonance file exchange matlab central. Emphasizing field testing to determine the data required, this book facilitates thorough and efficient oscillation and damping. Since the early 1930s, numerous researchers have addressed issues relating to these problems. Anderson, 9780780353503, available at book depository with free delivery worldwide.
Pdf damping subsynchronous resonance in power systems. These devices introduce negative damping for the turbinegenerator system critical frequencies. 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. Subsynchronous resonance in power systems by paul m. Subsynchronous resonance ssr problems in series compensated steamturbine power systems coexist with the beneficial effects provided by the series capacitors. Readers guide to subsynchronous resonance ieee journals. 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. Application of bifurcation theory to subsynchronous. Ieee transactions on power apparatus and systems, volume. 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 in power systems abstract approved.
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