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Record Nr. |
UNINA9910706554903321 |
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Autore |
Hack John T (John Tilton), <1913-1991, > |
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Titolo |
Geomorphology and forest ecology of mountain region in the central Appalachians / / by John T. Hack and John C. Goodlett; prepared in cooperation with the Harvard Forest, Harvard University |
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Pubbl/distr/stampa |
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Washington : , : United States Department of the Interior, Geological Survey, , 1960 |
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Descrizione fisica |
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1 online resource (iv, 66 pages) : illustrations, maps + + 1 plate |
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Collana |
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Geological Survey professional paper ; ; 347 |
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Soggetti |
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Forest ecology - Appalachian Mountains |
Physical geography - Appalachian Mountains |
Physical geography - Virginia |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from title screen (viewed September 30, 2014). |
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Nota di bibliografia |
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Includes bibliographical references (pages 63-64) and index. |
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2. |
Record Nr. |
UNINA9911007019703321 |
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Autore |
Arrillaga J |
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Titolo |
AC-DC power system analysis / / Jos Arrillaga and Bruce Smith |
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Pubbl/distr/stampa |
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London : , : Institution of Electrical Engineers, , 1998 |
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ISBN |
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1-62870-461-6 |
1-84919-439-4 |
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Descrizione fisica |
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1 online resource (410 p.) |
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Collana |
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Power and Energy |
IEE power and energy series ; ; 27 |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Electric power systems - Mathematical models |
Electric power production |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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""Cover""; ""Half-title""; ""Title""; ""Copyright""; ""Contents""; ""Preface ""; ""1 Introduction ""; ""1.1 Basic AC-DC configuration ""; ""1.2 AC-DC simulation philosophy ""; ""1.3 Steady-state simulation ""; ""1.4 Fault analysis ""; ""1.5 Harmonic analysis ""; ""1.6 System stability ""; ""2 The AC-DC converter in steady state "" |
""2.1 Introduction """"2.2 Power frequency�symmetrical operation ""; ""2.2.1 Analysis of the commutation circuit ""; ""2.2.2 Rectifier operation ""; ""2.2.3 Inverter operation ""; ""2.2.4 Power factor and reactive power ""; ""2.3 Power frequency�unbalanced operation "" |
""2.3.1 Terminology and waveforms """"2.3.2 Variables and equations ""; ""2.4 Characteristic harmonics ""; ""2.5 The converter as a frequency modulator ""; ""2.5.1 The modulation process ""; ""2.6 Harmonic transfer generalisation ""; ""2.6.1 From the AC to the DC sides "" |
""2.6.2 From the DC to the AC sides """"2.6.3 |
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Effect of switching-instant variation ""; ""2.6.4 Transfer across the DC link ""; ""2.7 Harmonic instabilities ""; ""2.8 Generalised harmonic domain converter model ""; ""2.8.1 Analysis of the commutation ""; ""Star-connected bridge "" |
""Delta-connected bridge """"2.8.2 Valve-firing control ""; ""Current control ""; ""Commutation margin control ""; ""2.8.3 Direct voltage ""; ""Star-connection voltage samples ""; ""Delta-connection voltage samples ""; ""Convolution of the samples ""; ""2.8.4 Phase currents ""; ""Converter side "" |
""System side "" |
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Sommario/riassunto |
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A graduate-level textbook that can also serve as a reference for engineers and researchers working on problems in modern power systems. Emphasizes incorporating HVDC converters and systems into the analysis of power systems, but describes algorithms that can be extended to other industrial components such as drives and smelters and to the flexible AC transmission systems technology. Considers only system studies, influenced by steady-state or transient converter control; and not fast transients such as lightning. Annotation copyrighted by Book News, Inc., Portland, OR |
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