power system dynamics and stability

... elements of a power system function and the effect they have on both power system operation and control Structure of the electrical power system 2.1 Structure of the Electrical Power System The ... on the dynamics and stability of power systems, the complexity of which is not exceeded by any other dynamical system Massive computer power can now be brought to bear on solving power system ... the system that they occur Of prime concern is the way the power system will respond to both a changing power demand and to various types of disturbance; the two main causes of power system dynamics...

Ngày tải lên: 19/05/2014, 00:34

... Power System Stability, Vol I: Steady-State Stability, New York, Wiley, 1945 S.B Crary, Power System Stability, Vol II : Transient Stability, New York, Wiley, 1947 E.W Kimbark, Power System Stability, ... (HVDe and SVC controllers) The dynamic behaviour of power systems can be quite complex and a good understanding is essential for proper system planning and secure operation 1.2 Power System Stability ... POWER SYSTEM DYNAMICS Stability and control Second Edition "This page is Intentionally Left Blank" POWER SYSTEM DYNAMICS Stability and Control Second Edition K R...

Ngày tải lên: 19/08/2014, 12:53

... (WNT, 1989), Short Circuits in Power Systems (WNT, 2002) and Power System Control and Stability (WPW, 2007) He is also a co-author of Power System Dynamics and Stability published by John Wiley ... defining and classifying power system stability Hence power system stability can be divided (Figure 1.5) into: (i) rotor (or power) angle stability; (ii) frequency stability; and (iii) voltage stability ... TO POWER SYSTEMS 1.1 1.2 1.3 Introduction Stability and Control of a Dynamic System Classification of Power System Dynamics Two Pairs of Important Quantities: Reactive Power/ Voltage and Real Power/ Frequency...

Ngày tải lên: 19/08/2014, 14:17

... where PGi and QGi : generator real and reactive power at i-th bus, respectively; PDi and QDi : load real and reactive power at i-th bus, respectively; Gij and Bij : transfer conductance and susceptance ... of wind renewable energy systems and the power systems computing and multi objective dispatching He is author and coauthor of several papers in international journals and international conferences ... presented in section and conclusion is made in section Implemented power system model 2.1 Power flow in line transmission Power flow through the transmission line i-j namely Pij and Qij are depended...

Ngày tải lên: 05/09/2013, 15:28

... 16.3 Power System Stabilizer 16.3.1 Simplified Power System Stabilizer Model 16.3.2 Power System Stabilizer Type I 16.3.3 Power System ... loads, synchronous and induction machines, primary frequency and voltage regulators and power system stabilizers, dc devices, ac-dc devices, FACTS devices, and wind turbines and other distributed ... physical systems and defines the general mathematical model used for describing the behavior of power systems Chapter introduces the structure and the features of a software package for power system...

Ngày tải lên: 18/02/2014, 22:20

... the United States, and made compliance with those standards mandatory and enforceable Reliability standards are also mandatory and enforceable in Ontario and New Brunswick, and NERC is seeking ... discuss present and future trends in electric power systems, to describe the restructuring of the electric utility industry, and to introduce PowerWorld Simulator—a power system analysis and simulation ... click on the blue ‘‘Two Bus Power System ’ title and change it to ‘‘Three Bus Power System. ’’ Return to Run Mode and again solve Your final system should look similar to the system shown in Figure...

Ngày tải lên: 30/03/2014, 07:20

Ngày tải lên: 01/06/2014, 23:13

... of keywords 190 Nuclear Power - System Simulations and Operation between the area of “the precautionary principle” and “nuclear power management” shows Figure Nuclear Power generation MOX Fuel ... selection 186 Nuclear Power - System Simulations and Operation Nuclear power generation Items of questionaire survey/group Passive group Active group significance Necessity of Nuclear power generation ... both side of science and technology, such as a benefit and disadvantage of nuclear power generation They thought that nuclear power generation had the merit for energy security and environmental...

Ngày tải lên: 19/06/2014, 12:20

... orders@intechweb.org Nuclear Power - System Simulations and Operation, Edited by Pavel V Tsvetkov p cm ISBN 978-953-307-506-8 Contents Preface IX Chapter Simulation and Simulators for Nuclear Power Generation ... withstand natural disasters and avoid catastrophic consequences This book is one in a series of books on nuclear power published by InTech It consists of ten chapters on system simulations and ... throughout all chapters is the system- thinking” approach synthesizing provided information and ideas The book targets everyone with interests in system simulations and nuclear power operational aspects...

Ngày tải lên: 19/06/2014, 13:20

... Nuclear Power Generation • Instrumentation and control devices taken from the real power plant It is very advantageous if we can take over the plant computer system, the core surveillance system and ... that a nuclear facility must be designed and built to withstand without loss to the systems, structures, and components necessary to ensure public health and safety The beyond design basis accident ... accident that a nuclear facility must be designed and built to withstand.) As the regulatory process strives to be as Nuclear Power - System Simulations and Operation thorough as possible, "beyond...

Ngày tải lên: 19/06/2014, 13:20

... operators for nuclear power plants and experiments in neutronic and thermal hydraulic Fig A1 Core upper view and pool of the IPR-R1 TRIGA 32 Nuclear Power - System Simulations and Operation The IPR-R1 ... computational fluid dynamics (CFD) and structural analysis (IAEA, 2008) Each of these topics are being explained with some more details and exemplified next 26 Nuclear Power - System Simulations and Operation ... Thermal hydraulic system codes are applicable to a wide variety of reactor designs and conditions Such system codes allow simulating the complete primary and secondary circuits and the interactions...

Ngày tải lên: 19/06/2014, 13:20

... Experimental and calculated results at 100 kW of power operation Figures B5 and B6 show the RELAP5 calculation for the inlet and outlet temperature for the TH channel 1, at 50 and 100 kW of power, ... heated and had uniform axial and radial profiles Three tests were used for 48 Nuclear Power - System Simulations and Operation assessment the CHF calculation, which include tests 3.07.9B, 3.07.9N and ... Nuclear Power - System Simulations and Operation and the RELAP5-3D has been successfully modified to fulfill the associated requirements It was also demonstrated that all the phases of both LBLOCA and...

Ngày tải lên: 19/06/2014, 13:20

... RELAP5-3D/K against LBLOCA experiments 54 Nuclear Power - System Simulations and Operation from both LOFT and Semi-scale was summarized in Table and the conservative trend is shown in Figure 17 ... determination of power shape, the traditional bounding shape will be relaxed by sampling realistic operating shapes Each 60 Nuclear Power - System Simulations and Operation operating power shape can ... 0.7 0.8 0.9 Fig 23 Sampling of power shapes (3) Development of a run matrix by random sampling Once the major system parameters have been identified and ranged, random sampling of each parameter...

Ngày tải lên: 19/06/2014, 13:20

... 70 Nuclear Power - System Simulations and Operation • A fault – is a defect within the system • An error – is a deviation from the required operation of the system or subsystem • A system failure ... wrapped in the standard C library and may require some parameters and return a value Examples of system calls are low-level input and output functions, such as open() and read() The system calls ... operating system and its resources These include the system call interface, signals, and traps and faults, with arrows indicating the interactions Source code of a program System call Return Signal System...

Ngày tải lên: 19/06/2014, 13:20

... the variables passed to the system call interface and errors caused when return, or modified, pointer variables are not handled 84 Nuclear Power - System Simulations and Operation properly From ... potential failure modes and it requires expert knowledge on the system calls System and library calls are complex functions which interact with the kernel of the operating system The process of ... passing of arguments and return values, usage of return values, system- wide limitations, and sequential issues These methods complement each other Understanding the failure and error propagation...

Ngày tải lên: 19/06/2014, 13:20

... of off-site power, the reactor and the turbine tripped and natural circulation was established Later on, off-site power was recovered and operators brought the plant to Hot Zero Power (HZP) The ... coupled with the system code CATHARE and CRONOS2, a 3D neutronics code for computation of a BWR turbine trip, Mignot et al 108 Nuclear Power - System Simulations and Operation No Title and authors ... control rods, burnable and non-burnable poison rods) and channels (including central guide channel, measuring channel) were carried out 104 Nuclear Power - System Simulations and Operation using...

Ngày tải lên: 19/06/2014, 13:20

... water (moderation) and the neutron spectrum and subsequently the power distribution, a coupling of neutronics and thermal-hydraulics has 116 Nuclear Power - System Simulations and Operation Coupling ... optimization (Faria and Pereira, 2003) • Prediction of core parameters (Gazula and Bohr, 1992) • Plant control and monitoring (Uhrig, 1995) A Literature Survey of Neutronic and Thermal-Hydraulics ... Predictor 111 • Nonlinear dynamics and transient diagnosing (Adali et al., 1997) • Two-phase flow study (Tambouratzis and Pazsit, 2009) • Signal validation method (Ikonomopoulos and Van Der Hagen, 1997)...

Ngày tải lên: 19/06/2014, 13:20

... which depend on the power level and time behavior of reactor power during this period FPCART simulations have been carried out for the study of 135Xe transients for step and ramp power transients ... simulated variation of 135Xe specific activity with time for step and ramp power transients 132 Nuclear Power - System Simulations and Operation 5.3 Fission product activity under pump coast-down ... assessment and safety analysis Lumping of parameters and grouping of similar elements simplifies many features of these codes and adds to their computational efficiency The MELCOR [24] and CORSOR...

Ngày tải lên: 19/06/2014, 13:20

... friction and heat transfer The capability of constitutive equations and the way how they are used has to be carefully examined (Hänninen & Kurki, 2008) 142 Nuclear Power - System Simulations and ... Nspc about stand for 148 Nuclear Power - System Simulations and Operation density instabilities As an example, two calculation results obtained with APROS have been shown in Figures and In Figure ... Nuclear Power - System Simulations and Operation on Structural Mechanics in Reactor Technology (SMiRT 20), Espoo, Finland, August -14, 2009, SMiRT 20 – Division X, Paper 3164 J Kurki and M Hänninen,...

Ngày tải lên: 19/06/2014, 13:20

... evaluate Eqs (12) and (13), and the cumulative damage factor using a slightly modified procedure, NB-3653.6 (a), (b) and (c) The design is qualified if Eqs.(12) and (13) satisfied, and U≤1.0 At this ... requested in PIPESTRESS for fatigue evaluation, Eqs.(12), (13) and (14) will be evaluated together and, at 160 Nuclear Power - System Simulations and Operation the same time, a updated cumulative factor ... collapse-load and plastic instability load can be predicted in the same non-linear analysis through tracing the responses history This implies that a 164 Nuclear Power - System Simulations and Operation...

Ngày tải lên: 19/06/2014, 13:20