Use of Local Information to Determine the Distance to Voltage Collapse
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M. H Haque
This paper proposes a simple method of determining the distance to voltage collapse using some local information such as bus voltage magnitude and load current magnitude. First the voltage and current information are carefully processed to establish a voltage stability index (VSI) that varies almost linearly with load. The VSI is then used to estimate the distance to voltage collapse using linear extrapolation. The effects of generator reactive power limits, line tripping, non-uniform increase in load and additional shunt reactive power sources on the VSI are also investigated. The effectiveness of the proposed method of determining the distance to voltage collapse is then tested on the IEEE 30-bus system. The results obtained by the proposed method are also compared with the corresponding actual values found through repetitive power flow simulations and are observed to be in very good agreement.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Artikel in diesem Heft
- Article
- Use of Local Information to Determine the Distance to Voltage Collapse
- Short-Term Splitting of a Power System with Its Self-Restoration as Blackout Prevention
- Design of a New Oil Spraying Device for Hot Spot Cooling in Large Scale Electric Power Transformers
- Experimental Investigation of the Electromagnetic Signal Attenuation Characteristics of the Partial Discharge Laboratory at Jadavpur University
- An Integrated Boundary Protection Scheme for Power Transmission Line Systems
- Fundamental Analysis of the Static VAr Compensator Performance Using Individual Channel Analysis and Design
- Numerical Modelling of Heat Generation and Distribution in the Core and Winding of Power Transformers
