FLORENCE: Control applications for power system security

Summary

The aim of the Symposium was to assess the state of the art of centralized and decentralized control of electric power systems, in particular the impact of control computers, application programmes, interactive schemes, new concepts and devices on the security of supply and to widen the discussion and interaction among scientists, industrial researchers, consultants and users in this field.

KEYNOTE ADDRESS

The impact of control and information systems on the security of the power system by T.E. Dy Liacco (United States)

SURVEY PAPERS

Acquiring and securing data by E. Handschin (Fed. Rep. of Germany)
Evaluation et amélioration de la sécurité de fonctionnement des réseaux électriques dans leur conduite en temps réel par A. Merl in (France)
Emergency control and system restoration by U.G. Knight (United Kingdoml
Power plant control by V.F. Carvalho (Canada)
Automatic voltage and reactive power control in transmission systems by V. Arcidiacono (ltaly)

1. SECURITY ASSESSMENT AND ENHANCEMENT

ESTABLISHMENT OF DATA BASE FOR SECURITY FUNCTIONS

101-01 A. Simoes Costa, R. Salgado (Brazi Il. Bad data recovery for orthogonal row processing state estimators
101-02 Fu Hong-Cang (China). Data base for power security contrai system
101-03 J. Goldsztajn, D. Stevenin, G. De Montravel (France). Cohérence des données dans un système hiérarchisé de téléconduite d'un réseau
101-04 J. Sawicki, K. Wilkosz, Z. Kremens (Poland). Fast method for identification of bad data of active power flows in power network
101-05 Th. Van Cutsem, P.J. Gailly (Belgium). A simple algorithm for power system observability analysis and related functions

ON-LINE SECURITY ASSESSMENT

102-01 J. Carpentier, G. Cotte (France). Modern concepts for security contrai in electric power system
102-02 F.F. Wu (United States). A unified approach to security assessment
102-03 M. Ribbens-Pavel la, J.L. Horward, S. Chebbi (Belgium). On the effectiveness of direct methods in the study of power systems transient stabiIity
102-04 A. Fahmideh-Vojdani (United States),F.D. Galiana (Canada).The continuation method and its application in system planning and operation
103-01 D. Denzel, L. EAgels, F.R. Graf, H. Wieching (Fed. Rep. of Germany). Experience with advanced online security functions at the RWE dippatch centre
1030-2 T. Cegrel 1, M. Faxér, U. Sandberg (Sweden). A unique tool for advanced power system control studies
103-03 R. Nuytten, J. Vankelecom (Belgium), H. Gabier, R. MulIer (Fed. Rep. of Germany). An integrated on-line security enhancement system
103-04 B.E. Murray, W.S. Farrant (United Kingdom). The raie of online security assessment in operation

RESCHEDULING AND OTHER CORRECTIVE ACTIONS

104-01 B. Stott (United States), O. Alsac (Brazil). Experience with successive Iinear program ming for optimal rescheduling of active and reactive power
104-02 H. Habibol lahzadeh, J.A. Bubenko, D. Sjelvgren N. Andersson, G. Larsson (Sweden). Security = constraints in short-term planning of hydroelectric power systems.
104-03 Xia Zu-Zhi, Si Zhong-Ren (China). Automatic generation and economic dispacth control with security constraints
104-04 L. Elfstrom, D. Sjelvgren, E. Paulsson, J. Bubenko (Sweden). Optimal reactive power flow for preventive rescheduling of hydre thermal power system

OPERATION RESERVE AND MAINTENANCE: MANAGEMENT

105-01 P. Sandrin, M. Briand, J.P. Gonot (France), Daily management of a nuclear and conventional thermal power system unit commitment with simultaneous determination of the adequate spinning reserve
105-02 H. MülIer, J. Steiner, P.G. Harhammer (Austria). Computer aided maintenance management of a thermal power system by Iinear programming
105-03 R. Anelli, L. Marzio, B. De Martino, L. Vergelli (Italy). EvaIuation of medium term reliabiIity of the ENEL generation and transmission system
105-04 G.A. Fedotova, L.M. Lebedeva, Yu. N. Rudenko,V.K. Sokolov (USSR). On the rational use of capacity reserve in eletric power system operation
105-05 T. Endo, Y. Tamura (Japan). Performance comparison of on-line load forecasting methods

2. EMERGENCY CONTROL

CORRECTIVE SWITCHINGS

206-01 C.A. Rossier, A. Germond (Switzerland). Network topology optimization for power system security enhancement
206-02 H. Kronig, H. Glavitsch (Switzerland). A systematic approach to corrective swi tching in power networks
206-03 H.J. Kogl in (Fed. Rep. of Germany), M.F. Medeiros (Brazil). Further developments in corrective switching
206-04 K.W. Edwin,R. Eichler (Fed.Rep.of Germany). Corrective switching - A tool for preven tive network operation

DETECTION OF EMERGENCIES SITUATIONS AND DETERMINATION OF REMEDIAL MEASURES

207-01 N. Cukalevski, M. éalovit, J. MedaniC (Yugoslavia). Low order observer as a detector identified of load unbalances for emergency control
207-02 Ja. N. Luginski, V.G. Ornov, Ju. N. Rudenko V.A. Semenov, S.A. Sokalov (USSR). Interaction between the computers in power system dispatch centres and emergency control schemes schemes
207-03 W.H. Winter, D.R. Cowbourne (Canada). The Bruce load and generation rejection scheme
207-04 F. Heilemann, E. Wei fonder (Fed.rep.of Germany). Investigation of slow fréquency and power oscillations appearing in large extended power systems
207-05 U.G. Knight (United Kingdom) (CIGRE SC 39 WG 01).The implementation of emergnecy control
207-06 U.G. Knight, L. Morgridge (CIGRE SC 39 WG 01) A report on a further survey of major disturbances

VOLTAGE AND REACTIVE CONTROL

208-01 J. Zaborszky, G. Huang, S.Y. Lin (United States). Control of reactive power and voltage in emergencies.
208-02 J.P. Barret, F. Maury, G. Cotto (France). Réglage de la tension du réseau - Coordination entre la fourniture de puissance réactive par les groupes de production et la manoeuvre des condensateurs situés sur les réseaux
208-03 T.O. Bernsten, N. Flatabo, J.A. Foosnaes, Johannesen (Norway). Sensitivity signals in detection of network condition and planning of contrai actions in a power system
208-04 T. Shimojo, M. Udo, M. Masui, T. Matsushima (Japan). lmprovement of damping tie-line power swing by means of shunt capacitors switcning control
208-05 A. Garzillo, L. Franchi, P. Marannino, C. Sabelli, L. Vergelli, D. Sapera (ltaly). Some reactive power control procedure in the ENEL production and transmission system haute tension

209-01 G. Blanchon, J. C. Dodu, A. Merlin (France). Développement d'un nouvel outiI d'aide à la conduite en temps réel pour coordonner la régulation des puissances réactives et du plan de tension dans les réseaux THT de grande taille
209-02 R.C. Burchett, H.H. Happ, D.R. Vierath, R.E. Palmer (United States). Power system capacitor scheduling with security constraints
209-03 K.W. Edwin, S. Lemmer (Fed. Rep. of Germany) Central leveI reactive power voItage control

3. POWER PLANT AND SYSTEM INTERACTION

310-01 J. Falck Christensen (Denmark), S.A.Fismen (Norway), H. Heikkila (Finland), A. Wedeen (Sweden) -Time response for frequency activated operating reserves in the Nordel network.
310-02 M. A. EI-Gammal (Egypt), M. Kimura (Japan). A decentralized modal control for stabiIizing large-scale power networks
310-03 D. Rumpel (CIGRE SC 39(32) WG 04). Part 1: Tripping to houseload - Methods, application experience
310-04 D. Rumpel (CIGRE SC 39(32) WG 04). Part 11: Tripping to houseload - Methods, application experience
310-05 F. Colombo, A. De Marco, E. Ferrari, G. Magnani (ltaly) Considerations upon the representation of turbine and boiIer in the dynamic response of fossile fired electrical units
310-06 E. El Madbouly, P.M. Frank (Fed. Rep. of Germany). Robust instrument failure detection via Luenberger observers in nuclear power plants

311-01 T. Keranen, T. Kelo (Finland). On the effect of power system stabiIizers on inter-area oscillations

311-02 Lu Qiang, Sun Yuan-Zhang, Wang Zhong-Hong, He Jun-Ying (China). StabiIization of large scale power system by means of decentralized optimal control
311-03 T. Lysfjord, A. Johannesen, L. Rolfseng, A. Botnen (Norway). System damplng assessment and enhancement in electric power systems
311-04 N. Harada, M. Kamiya, K. Uyeda, H. Kaminosono (Japan). Field test and simulation of power system stabiIization at Atsumi thermal power station
311-05 M. Schmieg, E. Welfonder (Fed. Rep. of Germany). Control behaviour of power systems under structural perturbations

4. AUTOMATIC GENERATOR CONTROL AND LOAD MANAGEMENT

STRATEGIES FOR AREA CONTROL

412-01 J. Stoffej, K. Ebert (Switzerland). Simulation of automatic generation control concepts
412-02 J. laborszky, H. Mukai (United States). Automatic generation control with load management, jointly owned and cogeneration utiIizing up to date digital methodologies
412-03 J. Riera, L. Basanez, J. Ayza (Spain). Load frequency control modelIing and sensitivity analysis of the Catalonian power system
*412-04 B. Cuno (Fed. Rep. of Germany). Adaptive and robust automatic generation control for secure and economic power system operatlon.
*412-05 B.S. Sharma ( lndia) - Load management system for unique power systems of developlng countries.

*Not included in the volume

LOAD UNDERSTANDING

413-01 R.H. Craven, M.R. Michael (Austral ia). Load characteristic measurements and the representation of loads in the dynamic simulation of the Queensland power system
413-02 He Ren-Mu (Chine), A. Germond (Suisse). Identification de modèles de charges en fonction de la tension et de la fréquence
413-03 E. Handschin, Th. Reissing (Fed. Rep. of Germany). Theory and practice of load modeling for power system dynamics

5. SYSTEM RESTORATION

CENTRALIZED AND DECENTRALIZED ACTIONS DURING SYSTEM RESTORATION

514-01 K. Matsumoto, T. Sakaguchi, K. Uemura (Japan). Heuristic management of complex and large scale power system in restorative states
514-02 M. Winokur, B.J. Cory (United Kingdom). Decision theory strategies for control of interconnected power systems in emergencies
514-03 T.D. Brosnan, J.F. Monaghan ( lreland). Frequency dependent automatic load restoration scheme
514-04 H. Kodama, H. Suzuki, I. Atsumi, K. lshizuka (Japanl. Interactive restoration control of electric power systems
514-05 S.T. Dumbreli (Australia). System restora tion in the New South Wales power system