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Determining voltage stability margin values by measuring the hypotenuse under PV and QV curves

Mohamad Nor, Ahmad Fateh and Sulaiman, Marizan and Abdul Kadir, Aida Fazliana and Omar, Rosli (2018) Determining voltage stability margin values by measuring the hypotenuse under PV and QV curves. International Journal of Electrical Engineering and Applied Sciences, 1 (1). pp. 25-29. ISSN 26009633

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Voltage instability is one of the main causes of electrical power system blackouts all around the world. Voltage instability can be analyzed with the used of PV and QV curves technique. From these curves, the values of voltage stability margin (VSM) can be determined. VSM is very important in analyzing voltage instability because it shows the distance of how far the power system is able to run before experiencing voltage instability. This paper presents the calculation of VSM values by measuring the hypothenuse under the PV and QV curves. These VSM values are used to determine the weakest bus in the power system. Then, these values are compared with the VSM values that are being calculated using the conventional equation. The IEEE 14-bus power system has been chosen as the reference electrical power system.

Item Type: Article
Uncontrolled Keywords: Voltage instability analysis; voltage stability margin; PV and QV curves; IEEE 14-bus power system
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001-1841 Production of electric energy or power. Powerplants. Central stations
Divisions: Faculty of Electrical and Electronic Engineering > Department of Robotic and Mechatronic Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 23 Jun 2019 06:52
Last Modified: 23 Jun 2019 06:52
URI: http://eprints.uthm.edu.my/id/eprint/11537
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