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Voltage Stability Study of the Iraqi Power Grid | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 30, Issue 2, 2012, Pages 312-324 PDF (372.99 K) | ||
| DOI: 10.30684/etj.30.2.10 | ||
| Authors | ||
| Rashid H. Al-Rubayi; Humam A. Al-Baidhani | ||
| Abstract | ||
| It has become an important task for many voltage stability studies to find a voltage stability index. The voltage stability indices provide reliable information about proximity of voltage instability in a power system. In this paper, the L indicator has been proposed, which aims to detect the weakest load buses in the electrical power networks. The L indicator has been checked by its application to the (WSCC 9-bus and IEEE 14-bus) test systems. Finally, the proposed indicator has been applied to the Iraqi power grid (400 kV) considering different contingencies, such as lines outage, generated power reduction and loading increase. The short computation time of this indicator and its efficient detection of the weakest load buses in the Iraqi power grid, allow the operators to apply it in online voltage stability monitoring based on measurements. | ||
| Keywords | ||
| steady state voltage stability; voltage collapse; voltage stability indices and L indicator | ||
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