Boots – shoes – and leggings
Patent
1996-02-22
1997-01-14
Ramirez, Ellis B.
Boots, shoes, and leggings
364578, 307 18, 307 19, 307 29, 307 38, G06F 1570, H02J 306, H02J 314
Patent
active
055946593
ABSTRACT:
A method for performing a voltage stability security assessment for a region of an electric power transmission system having a plurality of buses and a plurality of sources of reactive reserves coupled thereto. The plurality of buses are grouped into a plurality of voltage control areas such that each of the buses within each voltage control area has a substantially similar reactive margin and voltage at the minimum of the corresponding reactive power versus voltage relationship. A corresponding reactive reserve basin is determined for each of at least one of the voltage control areas. Each reactive reserve basin comprises at least one of the sources of reactive reserves selected in dependence upon a measure of the reactive reserves depleted at a predetermined operating point of the electric power transmission system. A single contingency analysis is performed by computing a corresponding quantity for each reactive reserve basin in response to each of a plurality of single contingencies. The corresponding quantity is representative of a reduction in the reactive reserves within the reactive reserve basin. A multiple contingency analysis is performed for each reactive reserve basin using the single contingencies whose corresponding quantity exceeds a predetermined threshold.
REFERENCES:
patent: 3789201 (1974-01-01), Carpenter et al.
patent: 3886330 (1975-05-01), Egelston et al.
patent: 3903399 (1975-09-01), Enns et al.
patent: 3903402 (1975-09-01), Petit et al.
patent: 4181950 (1980-01-01), Carter, II
patent: 4324987 (1982-04-01), Sullivan, II et al.
patent: 4337401 (1982-06-01), Olson
patent: 4589075 (1986-05-01), Buennagel
patent: 4868410 (1989-09-01), Nakamura
patent: 4916377 (1990-04-01), Terada et al.
patent: 4974140 (1990-11-01), Iba et al.
patent: 5081591 (1992-01-01), Hanway et al.
patent: 5278772 (1994-01-01), Knupp
patent: 5285395 (1994-02-01), Kamayashi
patent: 5323330 (1994-06-01), Asplund et al.
patent: 5327355 (1994-07-01), Chiba et al.
patent: 5347466 (1994-09-01), Nichols et al.
patent: 5414640 (1995-05-01), Seem
patent: 5422561 (1995-06-01), Williams et al.
Glover et al., Power System Analysis and Design, PWS-KENT Publishing Co., 1987, pp. 265-271.
Schlueter et al., "Improved Contingency Measures for Operation and Planning Applications", IEEE Trans. on Power Systems, vol. 4, No. 4, Oct. 1989, pp. 1430-1437.
Schlueter et al., "A Fast Accurate Method for Midterm Transient Stability Simulation of Voltage Collapse in Power Systems", Decision and Control 1989 28th Annual Conference, Dec. 1989, pp. 340-344.
Chen et al., "Security Analysis for Voltage Problems using a Reduced Model", IEEE Trans. on Power Systems, vol. 5, No. 3, Aug. 1990, pp. 933-940.
Chen et al., "Multi-Contingency Preprocessing for Security Assessment using Physical Concepts and CQR with Classifications", IEEE Trans. on Power Systems, vol. 8, No. 3, Aug. 1993, pp. 840-848.
Overbye et al., "Q-V Curve Interpretations of Energy Measures for Voltage Security", IEEE Trans. on Power Systems, vol. 9, No. 1, Feb. 1994, pp. 331-340.
R. A. Schlueter, "Unificat. & Classification of Algebraic Tests for Loss of Voltage Stab.", Elec. Mach. & Power Sys., Sep.-Oct., 1993, vol. 21, No. 5, pp. 557-590.
T. Lie, et al., "Method Of Identifying Weak Trans. Network Stability Boundaries", IEEE Trans. on Power Systems, vol. 8, No. 1, pp. 293-301, 1992.
R. A. Schlueter, et al., "Dynamic/Static Voltage Stability Security Criteria", Proceedings of the Bulk Power System Voltage Phenomena Seminar, Aug. 1991.
R. A. Schlueter, et al., "Methods For Determining Proximity To Volt. Collapse", IEEE Trans. on Power Systems, vol. 6, No. 2, pp. 258-292, Feb. 1991.
Robert A. Schlueter, "Voltage Stability Assessment Of The Board Of Water And Light System", Oct. 1992.
R. A. Schlueter, et al., "Voltage Collapse Security Assessment On The B.C. Hydro System", Mar. 1991.
K. L. Putta Buddhi, et al., "Decoupled Ranking Of Branch Outages Causing Limit Violations", Electric Machines and Power Systems, 18:123-136, 1990.
V. Brandwajn, et al., "Pre-Screening Of Single Contingencies Causing Network Topology Changes", IEEE Power Engineering Society, 90 SM 487-9 PWRS, 1990.
Yilang Chen, et al., "An Adaptive Pre-Filter For The Voltage Contingency Selection Function", IEEE, 1989.
G. C. Ejebe, et al., "Fast Contingency Screening And Evaluation For Voltage Security Analysis", IEEE Power Engineering Society, 88 WM 161-2, 1988.
D. G. Taylor, et al., "A Reactive Contingency Analysis Algorithm Using MW and MVAR Distribution Factors", IEEE Power Engineering Society, SP 89-149, Jul. 1989.
M. G. Lauby, et al., "Contingency Selection Of Branch Outages Causing Voltage Prob.", IEEE Power Engineering Society, 83 SM 340-7, 1983.
Yilang Chen, et al., "Direct Ranking For Voltage Contingency Selection", IEEE Power Engineering Society, 89 WM 135-5 PWRS, 1989.
John G. Raine, et al., "Power System Concepts Of Reactive Power", IEEE, 87 EH 0262-6-PWR, 1987.
D. E. Badley, "VAR Reserves And Requirements", IEEE, 87 EH 0262-6, 1987.
J. Falck Christensen, et al., "Planning Against Voltage Collapse", 1987.
A. Invernizzi, "Results Of An International Survey On Reacti. Power In Interconnected Power Sys. Part II Planning Practices For Voltage And Reactive Power Control", 1984.
M. Ernoult, et al., "React. Pwr. Comp. & Volt. Contrl. On The French EHV Sys.: Pres. Sit. & Prosp.", Intern'l Conf. on Lrg. High Vol. Elec. Sys., CIGRE 38-08, Paris 1986.
J. P. Paul, et al., "Survey Of The Second. Volt. Con. In France: Present Realiz. & Investigations", IEEE Trans. on Powr. Sys., Vol. PWRS-2, No. 2, pp. 505-511, 1987.
B. Avramovic, et al., "Real-Time Reactive Security Monitoring", IEEE Trans. On Power Systems, vol.7, No. 1, 1992.
J. Zaborszky, et al., "A Textured Model For Computationally Efficient Reactive Power Control & Mgmt.", IEEE Trans. On Power Apparat. & Sys., vol. PAS-104, No. 7, 1985.
M. Winokur, et al., "Identification Of Strong And Weak Areas For Emergency State Control", IEEE Power Engineering Society, 84 WM 022-0, 1984.
R. Navarro-Perez, et al., "Voltage Collapse Proximity Analysis Using Reactive Area Identification", 1988.
Yakout Mansour, et al., "SVC Placement Using Critical Modes Of Voltage Instability", IEEE Trans. On power Systems, vol. 9, No. 2, 1993.
G. K. Morison, et al., "Voltage Stability Analysis Using Static And Dynamic Appro.", IEEE Trans. On Power Systems, vol. 8, No. 3, 1992.
B. Gao, et al., "Voltage Stability Evaluation Using Modal Analysis", IEEE Trans. On Power Systems, vol. 7, No. 4, 1991.
R. A. Schlueter, et al., "React. Supp.: On-Line Sec. Crit.", Sec. 7, Procee. of Worksh. on Bulk Power Volt. Phenomena: Volt. Stab. & Sec. Conf., Sep. 1988.
Tjing T. Lie, et al., "Strong Controllability And Observability And Their Effects On Transient Stability Of Power Systems", IEEE Trans. on Power Systems, 1992.
Robert Schlueter, et al., "Contingency Selection", Feb. 1991, pp. 1-46.
North American Electric Reliability Council, "Survey Of The Voltage Collapse Phenomenon", 1991.
Fernando Alvarado, et al., "Suggested Techniques For Voltage Stability Analysis", IEEE Power Engineering Society, 93TH0620-5PWR, 1993.
IEEE, "Voltage Stability Of Power Systems: Concepts, Analytical Tools, And Industry Experience", IEEE, 90TH0358-2-PWR, 1990.
R. A. Schlueter, "Voltage Stability And Security Assessment", EPRI Report, EL-5967, RP-1999-8, Aug. 1988.
J. Duncan Glover, et al., "Power System Analysis and Design", PWS-Kent Publ. Co., pp. 265-271, 1987.
A. Chakrabarti, et al., "React. Power Limit. In Volt. Stab. of EHV Sys. & Its Mic.-proces. Based Online Cont.", IEEE, vol. 72, Pt.EL-1, pp. 1-6, Apr. 1991 (abstract only).
Thomas J. Overbye, et al., "Q-V Curve Interpret. Of Energy Measures For Volt. Sec.", IEEE Trans. on Power Sys., vol. 9, No. 1, pp. 331-340, Feb. 1994.
Schlueter et al., "Improved Contingency Measures for Operation & Planning Applicat.", IEEE Trans. on Power Systems, vol. 4, No. 4, Oct. 1990, pp. 1430-1437.
Schlueter et al., "A Fast Accur. Meth. for Mid. Trans. Stab. Simulat. of Volt. Colla. In Power Sys.", Pro. of the 28th Conf. On Dec. & Control, Dec. 1989, pp. 340-344.
Chen et
Michigan State University
Ramirez Ellis B.
Stamber Eric W.
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