The effective role of AVR and PSS in power systems: frequency response analysis

G. Dudgeon; W.E. Leithead; J. O'Reilly; J.R. McDonald

doi:10.1109/TPWRS.2007.908404

The effective role of AVR and PSS in power systems: frequency response analysis

G. Dudgeon, W.E. Leithead, J. O'Reilly, J.R. McDonald

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

Two tradeoffs in the effectiveness of automatic voltage regulators (AVRs) and power system stabilizers (PSSs) are investigated together for the first time. The first is the effect of a high-gain fast response AVR on decreasing power system oscillation stability as well as increasing transient stability, and vice versa. The second is that a PSS can reduce transient stability by overriding the voltage signal to the exciter as well as increasing oscillation stability, and vice versa. In essence, the actions of the AVR and PSS devices are dynamically interlinked. A novel Bode frequency response framework for dynamic analysis of AVR and PSS performance and tradeoffs is presented. Bode frequency response also assists with the determination of suitable generator locations for PSSs and the assessment of robustness under changing power system operating conditions.

Original language	English
Pages (from-to)	1986-1994
Number of pages	9
Journal	IEEE Transactions on Power Systems
Volume	22
Issue number	4
DOIs	https://doi.org/10.1109/TPWRS.2007.908404
Publication status	Published - 1 Nov 2007

Keywords

frequency response
power system
dynamic stability
power system management
transient stability
voltage regulators

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title = "The effective role of AVR and PSS in power systems: frequency response analysis",

abstract = "Two tradeoffs in the effectiveness of automatic voltage regulators (AVRs) and power system stabilizers (PSSs) are investigated together for the first time. The first is the effect of a high-gain fast response AVR on decreasing power system oscillation stability as well as increasing transient stability, and vice versa. The second is that a PSS can reduce transient stability by overriding the voltage signal to the exciter as well as increasing oscillation stability, and vice versa. In essence, the actions of the AVR and PSS devices are dynamically interlinked. A novel Bode frequency response framework for dynamic analysis of AVR and PSS performance and tradeoffs is presented. Bode frequency response also assists with the determination of suitable generator locations for PSSs and the assessment of robustness under changing power system operating conditions.",

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T1 - The effective role of AVR and PSS in power systems

T2 - frequency response analysis

AU - Dudgeon, G.

AU - Leithead, W.E.

AU - O'Reilly, J.

AU - McDonald, J.R.

PY - 2007/11/1

Y1 - 2007/11/1

N2 - Two tradeoffs in the effectiveness of automatic voltage regulators (AVRs) and power system stabilizers (PSSs) are investigated together for the first time. The first is the effect of a high-gain fast response AVR on decreasing power system oscillation stability as well as increasing transient stability, and vice versa. The second is that a PSS can reduce transient stability by overriding the voltage signal to the exciter as well as increasing oscillation stability, and vice versa. In essence, the actions of the AVR and PSS devices are dynamically interlinked. A novel Bode frequency response framework for dynamic analysis of AVR and PSS performance and tradeoffs is presented. Bode frequency response also assists with the determination of suitable generator locations for PSSs and the assessment of robustness under changing power system operating conditions.

AB - Two tradeoffs in the effectiveness of automatic voltage regulators (AVRs) and power system stabilizers (PSSs) are investigated together for the first time. The first is the effect of a high-gain fast response AVR on decreasing power system oscillation stability as well as increasing transient stability, and vice versa. The second is that a PSS can reduce transient stability by overriding the voltage signal to the exciter as well as increasing oscillation stability, and vice versa. In essence, the actions of the AVR and PSS devices are dynamically interlinked. A novel Bode frequency response framework for dynamic analysis of AVR and PSS performance and tradeoffs is presented. Bode frequency response also assists with the determination of suitable generator locations for PSSs and the assessment of robustness under changing power system operating conditions.

KW - frequency response

KW - power system

KW - dynamic stability

KW - power system management

KW - transient stability

KW - voltage regulators

U2 - 10.1109/TPWRS.2007.908404

DO - 10.1109/TPWRS.2007.908404

M3 - Article

VL - 22

SP - 1986

EP - 1994

JO - IEEE Transactions on Power Systems

JF - IEEE Transactions on Power Systems

SN - 0885-8950

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