Assessment of Voltage Stability Indices to Predict the Line Close to Voltage Collapse
SrinivasNagaballi1, Vijay S. Kale2
1SrinivasNagaballi, Department of Electrical Engineering, Visvesvaraya National Institute of Technology, Nagpur (Maharashtra), India.
2Vijay S. Kale, Department of Electrical Engineering, Visvesvaraya National Institute of Technology, Nagpur (Maharashtra), India.
Manuscript received on 08 February 2019 | Revised Manuscript received on 21 February 2019 | Manuscript Published on 04 March 2019 | PP: 386-392 | Volume-7 Issue-5S2 January 2019 | Retrieval Number: ES2070017519/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Voltage stability is the integral part of the power system stability. In this paper, assessment of various voltage stability indices (VSIs) are presented to predict the proximity of the distribution line close to voltage collapse. These line VSIs are based on the concept of voltage quadratic equation of the two bus system. The behaviour of VSIs have been tested on two test systems, i.e. IEEE 12-bus and IEEE 33-bus radial distribution systems (RDS) with increasing penetration of base load. These indices are differentiated to resolve their effectiveness in identifying the weakest line in the system. Results show that these indices evaluation can be used for placing Distributed Generation (DG) and capacitors in the system.
Keywords: Distribution System, Voltage Stability Indices, Voltage Collapse.
Scope of the Article: Adaptive Systems