The entry of the Slavs into Christendom : an introduction to the medieval history of the Slavs / A. P. Vlasto

• Record Nr.: UNISA996463846703316
• Autore: VLASTO, A. P.
• Pubbl/distr/stampa: Cambridge, : Cambridge University Press, 1970
• ISBN: 0-521-07459-2
• Descrizione fisica: Testo elettronico (PDF) (XII, 435 p.) : ill.
• Disciplina: 909.04918
• Soggetti: Popoli slavi - Sec. 6.- 12. - Storia; Cristianesimo - Diffusione - Paesi slavi - Sec. 6.- 12
• Lingua di pubblicazione: Inglese
• Formato: Risorsa elettronica
• Livello bibliografico: Monografia
• Sommario/riassunto: L'Autore di questo volume passa in rassegna la storia antica dei vari popoli slavi (dal 500 d.C. circa in poi) e traccia la loro graduale comparsa come stati cristiani nel quadro della cultura dell'Europa occidentale e orientale. Particolare attenzione è rivolta alla rivalità politica e culturale tra Oriente e Occidente e al grado di scambio culturale all'interno del mondo slavo, associato in particolare all'uso della lingua liturgica slava. L'esame di tutti i popoli slavi e l'ampio uso di materiale nelle diverse lingue originali consente all'Autore di fornire uno studio particolarmente completo dell'argomento.

Advanced control of grid-connected high-power converters / / Chenghui Zhang

• Record Nr.: UNINA9910637735503321
• Autore: Zhang Chenghui
• Pubbl/distr/stampa: Gateway East, Singapore : , : Springer, , [2023]; ©2023
• ISBN: 9789811989988; 9789811989971
• Descrizione fisica: 1 online resource (279 pages)
• Disciplina: 621.313
• Soggetti: Electric current converters; Electric power distribution - Automation
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Intro -- Preface -- Acknowledgements -- Contents -- About the Author -- Abbreviations -- 1 Introduction -- 1.1 Application of High-Power Grid-Connected Converters -- 1.2 Configurations of High-Power Grid-Connected Converter -- 1.2.1 Parallel Power Switches -- 1.2.2 Parallel Power Converter Modules -- 1.3 Operating Challenges -- 1.3.1 Non-ideal Power Grid -- 1.3.2 Switches Faults -- 1.3.3 Circulating Current -- 1.4 Content of This Book -- References -- 2 Fundamentals of Grid-Connected Power Converters -- 2.1 Operating Principle -- 2.1.1 Single-Phase Power Converter -- 2.1.2 Three-Phase Three-Leg Power Converter -- 2.1.3 Three-Phase Four-Leg Power Converter -- 2.2 Modeling -- 2.2.1 Single-Phase Power Converter -- 2.2.2 Three-Phase Three-Leg Power Converter -- 2.2.3 Three-Phase Four-Leg Power Converter -- 2.3 Control Schemes -- 2.3.1 Phase-Locked Loop -- 2.3.2 Current Control Loop -- 2.3.3 Voltage Control Loop -- 2.3.4 Neutral Point (NP) Voltage Control Loop -- 2.4 Summary -- References -- 3 Control of Single-Phase High-Power Converter -- 3.1 Operating Principle -- 3.2 Modeling and Analysis of Circulating Current (CC) -- 3.2.1 Modeling -- 3.2.2 Analysis -- 3.3 Control Schemes -- 3.3.1 Control of Grid Current Without AC Voltage Sensor -- 3.3.2 Control of NP Voltage Balance with Switching Losses Reduction -- 3.3.3 Control Strategy for Circulating Current Suppression -- 3.4 ; Experimental Verification -- 3.4.1 Control Performance of Grid Current Tracking -- 3.4.2 Control Performance of NP Voltage Balance and Switching Losses Reduction -- 3.4.3 Control Performance of Circulating Current Suppression -- 3.5 Summary -- References -- 4 Control of Three-Phase Three-Leg High-Power Converter -- 4.1 Operating Principle -- 4.2 Modeling -- 4.2.1 Switched Model -- 4.2.2 Quasi-Averaged Switch Model -- 4.2.3 Averaged Switch Model -- 4.3 Control Schemes.; 4.3.1 Control Strategy for Low-Frequency Zero-Sequence Circulating Current (LFZSCC) Suppression -- 4.3.2 Control Strategy for High-Frequency Zero-Sequence Circulating Current (HFZSCC) Suppression -- 4.4 Experimental Verification -- 4.4.1 Control Performance of LFZSCC Suppression -- 4.4.2 Control Performance of HFZSCC Suppression -- 4.5 Summary -- References -- 5 Control of Three-Phase Three-Leg High-Power Converter Under Non-ideal Conditions -- 5.1 Under Unbalanced Power Grid and Asymmetric Filter Inductor Conditions -- 5.1.1 Operating Principle -- 5.1.2 Modeling -- 5.1.3 Control Schemes -- 5.1.4 Experimental Verification -- 5.2 Under Power Switches Fault Conditions -- 5.2.1 Operating Principle -- 5.2.2 Modeling -- 5.2.3 Control Schemes -- 5.2.4 Experimental Verification -- 5.3 Summary -- References -- 6 Control of Three-Phase Four-Leg High-Power Converter -- 6.1 Operating Principle -- 6.2 Modeling -- 6.2.1 Switched Model -- 6.2.2 Quasi-Averaged Switch Model -- 6.3 Control Schemes -- 6.3.1 Control Strategy for Zero-Sequence Circulating Current Suppression -- 6.3.2 Control of NP Voltage Balance -- 6.3.3 Overall Control Schemes -- 6.4 Experimental Verification -- 6.4.1 Control Performance of Harmonic Compensation -- 6.4.2 Control Performance in Steady State -- 6.4.3 Control Performance in Dynamic State -- 6.5 Summary -- References.

SIMA systems integration for manufacturing applications : biennial report - fiscal years 1999-2000 / / James E. Fowler; Mark Carlisle

• Record Nr.: UNINA9910710528603321
• Autore: Fowler J. E (James E.)
• Pubbl/distr/stampa: Gaithersburg, MD : , : U.S. Dept. of Commerce, National Institute of Standards and Technology, , 2001
• Descrizione fisica: 1 online resource
• Collana: NISTIR ; ; 6721
• Altri autori (Persone): CarlisleMark; FowlerJ. E (James E.)
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: 2001.; Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.; Title from PDF title page.
• Nota di bibliografia: Includes bibliographical references.