Selection of locations and input signals for multiple SVC damping controllers in large scale power systems

Zhang, P.; Messina, A.R.; Coorick, A.; Cory, B.J.

doi:10.1109/pesw.1999.747535

Cited by 16 publications

(5 citation statements)

References 15 publications

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“…It is clear that (18) becomes (9). Similarly, pre-and postmultiply its left and right sides of (17) by diag{P −1 , P −1 , P −1 }, respectively, and (17) becomes (10). This completes the proof of Theorem 1.…”

Section: Fwm Approach-based Facts-ward Controller Designsupporting

confidence: 54%

“…In Ref. [10], the residue analysis method is applied to choose the locations and input signals for multiple static var compensator (SVC) damping controllers in large scale-power systems, but it is only valid for a single type of input signals, which suffers from a scaling problem when compared to the strength of signals of a widely differing physical significance, such as power flow in a tieline, bus frequency, shaft speed, and angle shift, and so on [1]. In Ref.…”

Section: Introductionmentioning

confidence: 99%

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Free‐weighting matrices‐based robust wide‐area FACTS control design with considering signal time delay for stability enhancement of power systems

Liu

Yokoyama

Zhou

et al. 2011

IEEJ Transactions Elec Engng

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This paper presents a free-weighting matrix (FWM) method based on linear control design approach for the wide-area robust damping (WARD) controller associated with flexible AC transmission system (FACTS) device to improve the dynamical performance of the large-scale power systems. First, the linearized reduced-order plant model is established, which efficiently considers the time delay of the remote feedback signals transmitted by wide-area measurement systems. Then, based on the robust control theory, the design of the FACTS-WARD controller is formulated as the standard control problem on delaydependent state-feedback robust control, which is described by a set of linear matrix inequality constraints. Furthermore, in order to obtain the optimal control parameters that can endure the maximum time delay, a FWM approach is proposed to solve the time-dependent problem of the time-delay system. Meanwhile, an iterative algorithm based on cone complementary linearization is presented to search out the optimal control parameters. Finally, the nonlinear simulations on the 2-area 4-machine and the 5-area 16-machine test systems are performed, to evaluate the control performance of the proposed robust wide-area time-delay control approach. 

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Section: Fwm Approach-based Facts-ward Controller Designsupporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Free‐weighting matrices‐based robust wide‐area FACTS control design with considering signal time delay for stability enhancement of power systems

Liu

Yokoyama

Zhou

et al. 2011

IEEJ Transactions Elec Engng

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“…The essential step in all design methods of a WAPSS is to determine the optimal bus on which the feedback frequency should be measured and the generator at another area where the WAPSS should be placed. A large number of studies in the literature deal with the placement of the meters and WAPSSs to achieve the highest system observability and controllability based on a sensitivity analysis [11], a geometric-based approach [12], and wide-area damping controllers [9]. There are also several WAPSS design schemes proposed in the literature; see for example [7,8] and [13].…”

Section: Introductionmentioning

confidence: 99%

A robust fusion bus frequency estimation method to improve frequency oscillation damping in power systems

Farahani,

Abolmasoumi,

Mili

et al. 2023

IET Generation Trans & Dist

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This paper proposes a new robust method for accurately and reliably estimating remote bus frequencies in a power system. Two different measurement sources for the remote bus frequency are considered, that is, the ideal Frequency Divider (FD) and the Synchronous Reference Frame Phase Locked Loops (SRF‐PLLs). Each measurement signal encounters different uncertainties and data quality issues. In this paper, both data sources are employed and fused together to better estimate the remote bus frequencies. To this end, the model structure of the power system is selected and an Unscented Kalman Filter (UKF) is utilized together with a fusion covariance intersection method to enhance the accuracy of the estimated bus frequency. Since the fusion estimation method fails in case of quality issues on both channels, a robust Generalized Maximum‐likelihood UKF (GM‐UKF) using a novel outlier detection criteria is developed. The impact of the resulting robust fusion filter on the estimation of the remote bus frequencies and on the performance of WAPSS, which makes use of the estimated frequencies as the feedback signal, is examined via simulations. The results demonstrate the excellent performance and reliability of the proposed method in dealing with noise filtering and outlier suppression while ensuring a high statistical efficiency.

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“…The fundamental role of LPSS is to increase damping to the oscillation of rotor of the generator by controlling its excitation using Automatic Voltage Regulator (AVR) with auxiliary stabilizing signal [2]. The CPSS use local signal as an input but this type of controller not always able to damp out the inter-area oscillations because local signal based controller do not have global observation [3].…”

Section: Iintroductionmentioning

confidence: 99%

Sssc Based Time Delay Compensator Design for Interconnected Power System

Bondriya¹,

Bharti²

2019

IJITEE

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In this paper, researcher designed a delay-dependent wide-area damping controller based on Static Synchronous Series Compensator (SSSC) to enhance the power system stability by using remote signal obtained from Wide-Area Measurement System (WAMS). This remote signals introduces a time delay in the feedback signal, as a result, degrade the system damping performance and even causes instability of close loop power system. To find out various controller parameters, use of Genetic Algorithm (GA) is adopted. The performance of Multi-Machines system is evaluated with proposed controller including signal delay and Conventional PSS(CPSS) in MATLAB simulation. Various results show that SSSC based controller damp-out the inter-area oscillations under small disturbance more effectively as compare to LPSS

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Selection of locations and input signals for multiple SVC damping controllers in large scale power systems

Cited by 16 publications

References 15 publications

Free‐weighting matrices‐based robust wide‐area FACTS control design with considering signal time delay for stability enhancement of power systems

Free‐weighting matrices‐based robust wide‐area FACTS control design with considering signal time delay for stability enhancement of power systems

A robust fusion bus frequency estimation method to improve frequency oscillation damping in power systems

Sssc Based Time Delay Compensator Design for Interconnected Power System

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