Results 141 to 150 of about 433 (184)
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The operation experience of KEPCO UPFC
2005 International Conference on Electrical Machines and Systems, 2005KEPCO (Korea Electric Power Corporation) has installed UPFC (unified power flow controller), voltage-source FACTS (flexible AC transmission system) device at Kangjin substation, Kangjin-gun, Jeonnam province in May 2003. Kangjin UPFC is composed of 40 MVA shunt inverter and 40 MVA series inverter, and has three operation modes, STATCOM (static ...
S.Y. Kim +3 more
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2007 IEEE Power Engineering Society General Meeting, 2007
Summary form only given. This paper presents a screening technique for greatly reducing the computation involved in determining the optimal location of a unified power flow controller (UPFC) in a power system. The first-order sensitivities of the generation cost with respect to UPFC control parameters are derived.
Seungwon An +2 more
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Summary form only given. This paper presents a screening technique for greatly reducing the computation involved in determining the optimal location of a unified power flow controller (UPFC) in a power system. The first-order sensitivities of the generation cost with respect to UPFC control parameters are derived.
Seungwon An +2 more
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Multi-teriminal UPFC for power system deregulation
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002One original purpose of FACTS controllers is to increase the transmission capacity of existing lines thus deferring the necessity of building new lines. FACTS, such as the unified power flow controller (UPFC), have also been regarded as controllers for routing power in the market-driven, deregulated power systems.
B. Mwinywiwa +6 more
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Research of MMC-UPFC Control Strategy
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2019The unified power flow controller (UPFC) as the intelligent power grid energy controller is a more comprehensive flexible ac device that can improve power grid operation, transmission levels and power quality. The differences in UPFC topology and its control strategies have an important impact on its output characteristics.
Jianpo Zhang +3 more
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Optimal parameters of UPFC for power flow
2006 India International Conference on Power Electronics, 2006Unified power flow controller (UPFC) is a versatile flexible AC transmission system (FACTS) controller which can be used for voltage and power flow control. In some situations such as transient stability control, it is required to maximize and minimize the power flow on certain transmission lines.
S. Krishna, K.R. Padiyar
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The impact of UPFC on power swing blocker
2016 51st International Universities Power Engineering Conference (UPEC), 2016Power Swing Blocker (PSB) is a complementary part in distance relay that detects power swing in the transmission line to prevent unintended operation of distance relay. Unified Power Flow Controller (UPFC) is used in a transmission line to control active and reactive power.
J. Khodaparast +3 more
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APSCOM 2000 - 5th International Conference on Advances in Power System Control, Operation and Management, 2000
An alternative control strategy of a UPFC, based on hysteresis control of the switches is presented. It is shown that a UPFC under hysteresis control will have nearly sinusoidal injected output current and voltage for reactive power and real power compensation while keeping the UPFC in its simplest configuration.
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An alternative control strategy of a UPFC, based on hysteresis control of the switches is presented. It is shown that a UPFC under hysteresis control will have nearly sinusoidal injected output current and voltage for reactive power and real power compensation while keeping the UPFC in its simplest configuration.
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Effect of UPFC on Voltage Stability Margin
2008 Joint International Conference on Power System Technology and IEEE Power India Conference, 2008This paper investigates the effect of unified power flow controller (UPFC) on voltage stability margin in a real power system. The original load flow Jacobian is modified incorporating the static model of an UPFC and the minimum singular values (MSV) of this Jacobian matrix are computed and compared with that of MSVs of a non-UPFC system.
J. Raju, P.S. Venkataramu
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A novel structure of UPFC with matrix converter
2009 International Conference on Power Systems, 2009In this paper a new scheme of unified power flow controller (UPFC) with matrix converter is proposed. The basic problems of the existing UPFC structure are discussed. The main aim of this paper is to present selected results of the analysis of the new UPFC based on matrix converter.
B. Geethalakshmi +2 more
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Modeling of UPFC and its parameters selection
4th IEEE International Conference on Power Electronics and Drive Systems. IEEE PEDS 2001 - Indonesia. Proceedings (Cat. No.01TH8594), 2005Power systems of today are large and complex, and their control is very difficult. flexible AC transmission systems (FACTS) controllers have been readily accepted as feasible means for power flow control for enhancing the steady and dynamic performances of power system during normal and abnormal conditions.
P. Nampetch, S.N. Singh, C. Surapong
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