作者: A.G. Phadke • J.S. Thorp& w9 Y6 r0 t/ e
Virginia Polytechnic Institute and State University$ x% f0 l, z$ M3 e
, `* |2 w1 D$ o2 W l0 D1 i0 \Preface 2 g: p. ~; b. RSynchronized phasor measurements have become the measurementtechnique of choice for electric power systems. They provide positivesequence voltage and current measurements synchronized to within amicrosecond. This has been made possible by the availability of Global Positioning System (GPS) and the sampled data processing techniques developed for computer relaying applications. In addition to positivesequences voltages and currents, these systems also measure local frequency and rate of change of frequency, and may be customized to measure harmonics, negative and zero sequence quantities, as well as individual phase voltages and currents. At present there are about 24 commercial manufacturers of phasor measurement units (PMUs), and industry standards developed in the Power System Relaying Committee of ( C8 n- b* Q; z% M6 o( JIEEE has made possible the interoperability of units from different manufacturers. 9 o% u* P) Y, L% @! [4 Q1 T: @, O1 x
Recent spate of spectacular blackouts on power systems throughout the world has provided an added impetus to widescale deployment of PMUs. Positive sequence measurements provide the most direct access to the state of the power system at any given instant. Many applications of these measurements have been discussed in the technical literature, and no doubt many more applications will be developed in coming years. The authors have been associated with this technology since its birth, and 4 M* u; s4 f& g) N/ B7 @" H; H6 Q/ m1 `they and their colleagues and students have produced a rich body of literature on the subject of phasor measurement technology and its applications. Other researchers around the world have also made significant contributions to the field. Our aim in writing this book is to present to the interested reader a coherent account of the development of the technology, and of the emerging applications of these measurements. It is our hope that this book will help power system engineers understand the" h `# C; A- w0 K9 G" m
basics of “synchronized phasor measurement systems”. This technology is bound to usher in an era of improved monitoring, protection, and control of power systems.. l: D# m& d; A t9 A Synchronized Phasor Measurements and Their Applications.rar(4.14 MB, 下载次数: 11)
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