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A new weak area identification method in power system based on voltage stability.

Aziz, Nur Fadilah Ab; Rahmat, Nur Azammudin; Muhammad-Sukki, Firdaus; Rahman, Titik Khawa Abdul; Yassin, Zuhaila Mat; Wahab, Norfishah A.; Salim, Nur Ashida


Nur Fadilah Ab Aziz

Nur Azammudin Rahmat

Firdaus Muhammad-Sukki

Titik Khawa Abdul Rahman

Zuhaila Mat Yassin

Norfishah A. Wahab

Nur Ashida Salim


Identification of voltage stability weak area in power system plays an important role in preventing the occurrence of voltage collapse. A fast and accurate identification method helps power system operators to apply voltage stability control action on the weak area and thus avoids voltage collapse. This paper presents a new technique for weak area identification in a power system based on voltage stability named as Weak Area Indicator (WAI). WAI is derived from a newly developed voltage stability index, Voltage Stability Condition Indicator (VSCI). For verification purpose, the proposed WAI was tested with the existing method in the literature that used voltage stability variation method to detect weak area. Test results show that the proposed WAI is able to cluster weak areas correctly. All methods were tested on IEEE 30-bus and IEEE 118-bus test system.

Presentation Conference Type Conference Paper (unpublished)
Start Date Jul 25, 2017
Publication Date Jul 27, 2017
Institution Citation AZIZ, N.F.A., RAHMAT, N.A., MUHAMMAD-SUKKI, F., RAHMAN, T.K.A., YASSIN, Z.M., WAHAB, N.A. and SALIM, N.A. 2017. A new weak area identification method in power system based on voltage stability. Presented at the 2017 PACE international conference on science and technology (PICOST 2017), 25-27 July 2017, Penang, Malaysia.
Keywords Voltage collapse; Voltage stability; Voltage stability index; Weak area
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