Stark, M.; Hausmann, M. & Krost, G.
Expert System for Component Selection of Selfsufficient and Regenerative Electricity Supply Systems with Hydrogen Storage
ISAP 2009, Power & Energy Society, November 2009 Curitiba, Brazil PDF

Hoballah, A. & Erlich, I.
Transient Stability Assessment using ANN Considering Power System Topology Changes
ISAP 2009, Power & Energy Society, November 2009 Curitiba, Brazil PDF

Nakawiro, W. & Erlich, I.
Optimal Load Shedding for Voltage Stability Enhancement by Ant Colony Optimization
ISAP 2009, Power & Energy Society, November 2009 Curitiba, Brazil PDF

Erlich, I.; Feltes, C. & Wilch, M.
Beitrag von Windturbinen zur Spannungs- und Wirkleistungsregelung in elektrischen Netzen
Internationaler ETG-Kongress 2009, Oktober 2009 Vol. 3 S. 121-127 Düsseldorf, Deutschland PDF

Engelhardt, S.; Feltes, C.; Fortmann, J.; Kretschmann, J. & Erlich I.
Reduced Order Model of Wind Turbines based on Doubly-Fed Induction Generators during Voltage Imbalances
8th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms, Oktober 2009 Bremen, Deutschland PDF

Fortmann, J.; Engelhardt, S.; Kretschmann, J.; Feltes, C. & Erlich, I.
Validation of an RMS DFIG Simulation Model According to New German Model

Validation Standard FGW TR4 at Balanced and Unbalanced Grid Faults
8th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms, Oktober 2009 Bremen, Deutschland PDF

Feltes, C.; Engelhardt, S.; Kretschmann, J.; Fortmann, J.; Koch, F. & Erlich, I.
Comparison of the Grid Support Capability of DFIG-Based Wind Farms and Conventional Power Plants with Synchronous Generators
IEEE PES General Meeting, July 2009 Calgary, Alberta, Canada PDF

Erlich, I; Fortmann, J.; Engelhardt, S & Kretschmann, J.
Spannungsregelung mit moderner WEA-Technik
14. Kasseler Symposium Energie-Systemtechnik, September 2009 Kassel, Deutschland PDF

Krost, G. & Swemers, P.
Pilot Operation Experience of a Photovoltaic System with Simple Tracking Mechanism
Proc. of 4 ^th International Conference on Deregulated Electricity Market Issues in South-Eastern Europe, September 2009 Belgrade, Serbia invited paper PDF

Erlich, I.; Shewarega, F.; Engelhardt, S.; Kretschmann, J.; Fortmann, J. & Koch, F.
Effect of Wind Turbine Output Current during Faults on Grid Voltage and the Transient Stability of Wind Parks
IEEE Power & Energy Society, July 2009 Calgary, Alberta, Canada PDF

Feltes, C.; Engelhardt, S.; Kretschmann, J.; Fortmann, J.; Koch, F. & Erlich, I.
Comparison of the Grid Support Capability of DFIG-based Wind Farms and Conventional Power Plants with Synchronous Generators
IEEE Power & Energy Society, July 2009 Calgary, Alberta, Canada PDF

Feltes, C.; Wrede, H.; Koch, F.W. & Erlich, I.
Enhanced Fault Ridde-Through Method for Wind Farms Connected to the Grid Through VSC-Based HVDC Transmission
IEEE Transactions on Power Systems, 2009 Vol. 24 No. 3 pp. 1537-1546

Hashmani, A. A. & Erlich, I.
Delayed-Input Power System Stabilizer using Supplementary Remote Signals
IFAC Symposium on Power Plants and Power Systems Control, July 2009 Tampere Hall, Finnland PDF

van de Sandt, R.; Löwen; Paetzold, J. & Erlich, I.
Neutral Earthing in Off-Shore Wind Farm Grids
IEEE Power & Energy Society, June 2009 Bucharest, Romania PDF

Nakawiro, W. & Erlich, I.
Voltage Security Assessment and Control System using a Hybrid Intelligent Method
IEEE Power & Energy Society, June 2009 Bucharest, Romania PDF

Hoballah, A. & Erlich, I.
PSO-ANN Approach for Transient Stability Constrained Economic Power Generation
IEEE Power & Energy Society, June 2009 Bucharest, Romania PDF

Wanik, M. Z. C. & Erlich, I.
Simulation of Microturbine Generation System Performance during Grid Faults under new Grid Code Requirements
IEEE Power & Energy Society, June 2009 Bucharest, Romania PDF

Pappala, V.S.; Erlich, I.; Rohrig, K. & Dobschinski, J.
A Stochastic Model for the Optimal Operation of a Wind-Thermal Power System
IEEE Transactions on Power Systems, 2009 Vol. 20 No. 2 pp. 940-950

Rueda, J.L. & Shewarega, F.
Small Signal Stability of Power Systems with Large Scale Wind Power Integration
Proceedings of the CIGRE XIII ERIAC - Iberian-American Regional Meeting, Mai 2009 Puerto de Iguazú, Argentina PDF

Nakawiro, W. & Erlich, I.
A Combined GA-ANN Strategy for Solving Optimal Power Flow with Voltage Security Constraint.
IEEE Asia-Pacific Power and Energy Engineering Conference APPEEC, March 2009 Wuhan, China PDF

Shewarega, F.; Erlich, I. & Rueda, José L.
Impact of Large Offshore Wind Farms on Power System Transient Stability
IEEE PES Power Systems Conference & Exposition, March 2009 Seattle, WA USA PDF

Rueda, Jose L.; Colome, Delia G. & Erlich, I.
Assessment and Enhancement of Small Signal Stability Considering Uncertainties
IEEE Transactions on Power Systems, February 2009 Vol. 24 No. 1 pp. 198-207

Sandt, Robert van.; Löwen, Jakob. & Erlich, I.
Optimale Sternpunktbehandlung in Offshore-Windparks
ETG-Fachtagung Sternpunktbehandlung in Verteilnetzen, Januar 2009 Dresden, Germany PDF