Real-time wide-area loading margin sensitivity (WALMS) in power systems

Yuan, Haoyu, Jiang, Tao, Jia, Hongjie, Li, Fangxing, Mishra, Yateendra, Chen, Houhe, & Li, Guoqing (2015) Real-time wide-area loading margin sensitivity (WALMS) in power systems. In 2015 IEEE Power & Energy Society General Meeting, Denver, CO, pp. 1-5.

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Loading margin sensitivity (LMS) has been widely used in applications in the realm of voltage stability assessment and control. Typically, LMS is derived based on system equilibrium equations near bifurcation and therefore requires full detailed system model and significant computation effort. Availability of phasor measurement units (PMUs) due to the recent development of wide-area monitoring system (WAMS) provides an alternative computation-friendly approach for calculating LMS. With such motivation, this work proposes measurement-based wide-area loading margin sensitivity (WALMS) in bulk power systems. The proposed sensitivity, with its simplicity, has great potential to be embedded in real-time applications. Moreover, the calculation of the WALMS is not limited to low voltage near bifurcation point. A case study on IEEE 39-bus system verifies the proposed sensitivity. Finally, a voltage control scenario demonstrates the potential application of the WALMS.

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ID Code: 91598
Item Type: Conference Paper
Refereed: Yes
Keywords: Load modeling, Sensitivity analysis, Voltage measurement, phasor measurement
DOI: 10.1109/PESGM.2015.7285880
ISBN: 9781467380409
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 04 Jan 2016 23:31
Last Modified: 06 Jan 2016 02:54

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