Results 21 to 30 of about 3,008 (258)
Simulation study of unified power flow controller
Electrical Engineering in Japan, 1997 The increasing complexity of ac power networks requires a high-performance power flow control system in order to obtain the desired power flow and enhance static and dynamic stability. One of the most effective power electronic systems to satisfy these requirements is a UPFC (Unified Power Flow Controller) employing self-commutated converters ...
Takuji CHIDA +5 more
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Journal of King Saud University: Engineering Sciences, 2003 This paper presents a probabilistic based approach to evaluate transient stability of power systems incorporating a Unified Power Flow Controller (UPFC).
Saleh Aboreshaid
doaj +1 more source
Journal of Techniques, 2023 By combining the functions of many FACTS (flexible alternative current transmission systems) devices into a single unit, the UPFC (unified power flow controller) is the most efficient FACTS device available.
Raghad Hameed Ahmed, Ahmed Said Nouri
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Experimental study on the Unified Power Flow Controller
Electrical Engineering in Japan, 2006 AbstractThis paper presents the results of experimental study on the performance of a Unified Power Flow Controller (UPFC), one of the FACTS (Flexible AC Transmission Systems) controllers. A laboratory‐scale UPFC was manufactured and installed on a laboratory electric power system to investigate its multifunctional capabilities as a power flow ...
Matsuki, Junya +4 more
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Operation of Unified Power Flow Controller as Virtual Synchronous Generator
IEEE Access, 2020 The continuous growth of Renewable Energy (RE) in the grid reduces system inertia and damping, impacting the overall stability of power systems. To alleviate this issue, “virtual” inertia can be provided by power electronics converters ...
Shuai Wang +5 more
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Improved feed forward power coordinate control strategy for unified power flow controller
Dianzi Jishu Yingyong, 2019 Unified power flow controller(UPFC) is the most advance flexible ac transmission system(FACTS). Active/reactive power balance for UPFC is analyzed in this paper when it is working in power flow control mode, and an improved real time power coordinate ...
Xu Yunfei +4 more
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ROBUST CONTROL OF UNIFIED POWER FLOW CONTROLLER (UPFC)
Electrica, 2007 This paper investigates control methods for the unified power flow controller in order to improve the stability of a power system hence providing security under increased power flow conditions. These include a direct PI controller with decoupling (PI-D),
T. ALLAOUI +3 more
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Mitigation of power system forced oscillations based on unified power flow controller
Journal of Modern Power Systems and Clean Energy, 2018 Forced oscillations (FOs), or low-frequency oscillations (LFOs) caused by periodic, continuous, small power disturbances, threaten the security and stability of power systems.
Ping JIANG +5 more
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Energies, 2020 As the latest generation of flexible AC transmission system (FACTS) devices, the unified power flow controller (UPFC) has comprehensive control capability and has played an important role in modern power systems.
Jian Yang, Zheng Xu, Zheren Zhang
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi +6 more
wiley +1 more source