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Influence of AC‐DC parallel interconnection on voltage stability of AC systems
Author(s) -
Tada Yasuyuki,
Yokoyama Akihiko,
Sekine Yasuji
Publication year - 1992
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391120408
Subject(s) - constant current , interconnection , transient (computer programming) , electrical engineering , inverter , voltage , transmission line , electric power transmission , alternating current , power (physics) , constant (computer programming) , ac power , topology (electrical circuits) , engineering , control theory (sociology) , electronic engineering , physics , computer science , telecommunications , control (management) , quantum mechanics , artificial intelligence , programming language , operating system
The static and dynamic characteristics of power supply to each node in a hybrid ac‐dc power system are analyzed by means of static and transient P‐V curves. Three kinds of dc transmission control scheme are compared. DC transmission systems are more effective in delivering power to inverter nodes. The constant firing angle, constant current control techinque provides more power to inverter nodes than the conventional constant current, constant voltage and constant power, constant extinction angle techniques. Transient digital simulations indicate that dc interconnection improves voltage stability to both the opening of a dc interconnected line and one‐line opening of ac double‐circuit interconnected lines.