NDLI: Development of a Versatile Voltage Stability Index Algorithm

Content Provider	IEEE Xplore Digital Library
Author	Dike, D.O. Mahajan, S.M. Radman, G.
Copyright Year	2007
Description	Author affiliation: Tennessee Technol. Univ., Cookeville, TN (Dike, D.O.; Mahajan, S.M.; Radman, G.)
Abstract	Power system experts have shown interest in the development of methods for predicting system status in the form of voltage stability indices. These indices performed well because they were primarily used for system planning as utilities then were either highly localized and regulated by the state or owned and operated by big electricity consumers. However, the situation changed drastically with the advent of unbundling, privatization/competition and power pooling in the last two decades. Consequently, incidents of power outages have become a common occurrence worldwide because of increasing load demand without proportionate increase in electrical power supply due to difficulties posed to the building of new generation centers and transmission lines by residents and environment. This paper, therefore, develops a versatile index algorithm that incorporates robust features so as to guarantee the optimal utilization of the various voltage collapse indices to adequately predict, monitor and detect the status of power system both online and off-line. It reviews existing voltage stability indices, and for the first time outlines index selection criteria to guide system operators and planners in their optimal usage to reduce outages and operational cost. The work, also, presents a new index computation scheme utilizing the complex pi-model of the medium and long transmission line. This new index will be used to effectively determine the status of power systems to prevent system overloading during power pooling and long distance wheeling of power, which has become a common phenomena among independent system operators (ISOs) and regional transmission organizations (RTOs) during peak and emergency periods. The simulation results show a favorable performance of this new index on both IEEE 14 and 30 bus systems with respect to existing indices.
Starting Page	556
Ending Page	561
File Size	7163371
Page Count	6
File Format	PDF
ISBN	9781424414444
DOI	10.1109/EPC.2007.4520392
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-25
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power Pooling Energy consumption Indices and Electricity Restructuring Power supplies Voltage Stablity Power system planning Power system stability Power transmission lines Optimal Utilization Voltage Collapse Privatization Power system simulation Voltage Robustness Power generation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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