Decentralized power system stabilizer design using linear parameter varying approach

Wenzheng Qiu, Vijay Vittal, Mustafa Khammash

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the power system model is formulated as a finite dimensional linear system whose state-space entries depend continuously on a time varying parameter vector called the scheduling variables. This system is referred to as the linear parameter varying (LPV) system. Although the trajectory of the changing parameters such as load levels and tie line flows is not know in advance, in most situations, they can be measured in real time. The LPV technique is applied to the decentralized design of power system stabilizers (PSS) for large systems. In the approach developed, instead of considering the complete system model with all the interconnections, we develop a decentralized approach where each individual machine is considered separately with arbitrarily changing real and reactive power output in a defined range. These variables are chosen as the scheduling variables. The designed controller automatically adjusts its parameters depending on the scheduling variables to coordinate with change of operating conditions and the dynamics of the rest of the system. The resulting PSSs give good performance in a large operating range. Design procedures are presented and comparisons are made between the LPV decentralized PSSs and conventionally designed PSSs on the 50-generator IEEE test system.

Original languageEnglish (US)
Title of host publication2005 IEEE Power Engineering Society General Meeting
Pages1744
Number of pages1
Volume2
StatePublished - 2005
Event2005 IEEE Power Engineering Society General Meeting - San Francisco, CA, United States
Duration: Jun 12 2005Jun 16 2005

Other

Other2005 IEEE Power Engineering Society General Meeting
CountryUnited States
CitySan Francisco, CA
Period6/12/056/16/05

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Scheduling
Reactive power
Linear systems
Trajectories
Controllers

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Qiu, W., Vittal, V., & Khammash, M. (2005). Decentralized power system stabilizer design using linear parameter varying approach. In 2005 IEEE Power Engineering Society General Meeting (Vol. 2, pp. 1744)

Decentralized power system stabilizer design using linear parameter varying approach. / Qiu, Wenzheng; Vittal, Vijay; Khammash, Mustafa.

2005 IEEE Power Engineering Society General Meeting. Vol. 2 2005. p. 1744.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Qiu, W, Vittal, V & Khammash, M 2005, Decentralized power system stabilizer design using linear parameter varying approach. in 2005 IEEE Power Engineering Society General Meeting. vol. 2, pp. 1744, 2005 IEEE Power Engineering Society General Meeting, San Francisco, CA, United States, 6/12/05.
Qiu W, Vittal V, Khammash M. Decentralized power system stabilizer design using linear parameter varying approach. In 2005 IEEE Power Engineering Society General Meeting. Vol. 2. 2005. p. 1744
Qiu, Wenzheng ; Vittal, Vijay ; Khammash, Mustafa. / Decentralized power system stabilizer design using linear parameter varying approach. 2005 IEEE Power Engineering Society General Meeting. Vol. 2 2005. pp. 1744
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