Control loops selection to damp inter-area oscillations of electrical networks

Heniche, A.; Karnwa, I.

doi:10.1109/tpwrs.2002.1007907

Cited by 79 publications

(43 citation statements)

References 12 publications

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“…The principle of selecting wide-area POD feedback signals is to achieve a superior damping effect on the concerned electromechanical oscillation modes and try not to affect other oscillation modes. A plenty of research has demonstrated the theoretical validity and practical availability of geometric and residue approaches to choose the most suitable wide-area feedback signal for POD [36][37][38]. In this study, the concept of joint modal controllability/observability index is adopted as wide-area feedback signals selection method to decouple modal interactions of multiple feedback signals [32].…”

Section: Selection Of the Wide-area Feedback Signalsmentioning

confidence: 99%

Simultaneous Robust Coordinated Damping Control of Power System Stabilizers (PSSs), Static Var Compensator (SVC) and Doubly-Fed Induction Generator Power Oscillation Dampers (DFIG PODs) in Multimachine Power Systems

Zuo

Shi

et al. 2017

Energies

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Abstract:The potential of utilizing doubly-fed induction generator (DFIG)-based wind farms to improve power system damping performance and to enhance small signal stability has been proposed by many researchers. However, the simultaneous coordinated tuning of a DFIG power oscillation damper (POD) with other damping controllers is rarely involved. A simultaneous robust coordinated multiple damping controller design strategy for a power system incorporating power system stabilizer (PSS), static var compensator (SVC) POD and DFIG POD is presented in this paper. This coordinated damping control design strategy is addressed as an eigenvalue-based optimization problem to increase the damping ratios of oscillation modes. Both local and inter-area electromechanical oscillation modes are intended in the optimization design process. Wide-area phasor measurement unit (PMU) signals, selected by the joint modal controllability/ observability index, are utilized as SVC and DFIG POD feedback modulation signals to suppress inter-area oscillation modes. The robustness of the proposed coordinated design strategy is achieved by simultaneously considering multiple power flow situations and operating conditions. The recently proposed Grey Wolf optimizer (GWO) algorithm is adopted to efficiently optimize the parameter values of multiple damping controllers. The feasibility and effectiveness of the proposed coordinated design strategy are demonstrated through frequency-domain eigenvalue analysis and nonlinear time-domain simulation studies in two modified benchmark test systems. Moreover, the dynamic response simulation results also validate the robustness of the recommended coordinated multiple damping controllers under various system operating conditions.

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Section: Selection Of the Wide-area Feedback Signalsmentioning

confidence: 99%

Simultaneous Robust Coordinated Damping Control of Power System Stabilizers (PSSs), Static Var Compensator (SVC) and Doubly-Fed Induction Generator Power Oscillation Dampers (DFIG PODs) in Multimachine Power Systems

Zuo

Shi

et al. 2017

Energies

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“…Also, to have an optimal performance, the signals with maximum observability are determined for each of the critical modes for controller input selection, based on the performed geometric analysis [26]. Then, the Schur method from the LMI toolbox in MATLAB software is used for model reduction [21].…”

Section: Wide Area Damping Controller Design Proceduresmentioning

confidence: 99%

“…The LMI toolbox from the MATLAB package is used for controller synthesis [26]. The minimum damping ratio and minimum rate of decay are set to be 0.25 and 0.4, respectively.…”

Section: Linearization Input Selection and Model Reductionmentioning

confidence: 99%

Optimal robust stabilizer design based on UPFC for interconnected power systems considering time delay

Koofigar

Isazadeh

2017

Archives of Electrical Engineering

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A robust auxiliary wide area damping controller is proposed for a unified power flow controller (UPFC). The mixedproblem with regional pole placement, resolved by linear matrix inequality (LMI), is applied for controller design. Based on modal analysis, the optimal wide area input signals for the controller are selected. The time delay of input signals, due to electrical distance from the UPFC location is taken into account in the design procedure. The proposed controller is applied to a multimachine interconnected power system from the IRAN power grid. It is shown that the both transient and dynamic stability are significantly improved despite different disturbances and loading conditions.

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“…Due to the wide-area signal ω 13 used in this paper, 100 is the suitable scaling number according to the value used in the simulation. It should be noted that, for a relatively large scale power system, the geometric measures of observability and controllability are used to select the most effective wide-area input signals and WADC locations [20].…”

Section: Design Of Adaptive Wadcmentioning

confidence: 99%

“…Therefore, the WADC should be designed for providing damping for this critical inter-area mode. To determine WADC location and wide-area feedback signals, geometric measures of modal controllability/observability is employed to evaluate the relative strength of candidate signals and the performance of controllers at different locations with respect to a given inter-area mode in [5,20]. WADC should be located on the generator which has larger geometric Responses to three-phase-to-ground fault with 120 ms time delay controllability with respect to the mode concerned, while smaller geometric controllability with respect to other modes in order to reduce the effect on other modes.…”

Section: Design Of Adaptive Wadcmentioning

confidence: 99%

Damping of Inter-Area Low Frequency Oscillation Using an Adaptive Wide-Area Damping Controller

Yao

Jiang

Wen

et al. 2014

Journal of Electrical Engineering and Technology

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-This paper presents an adaptive wide-area damping controller (WADC) based on generalized predictive control (GPC) and model identification for damping the inter-area low frequency oscillations in large-scale inter-connected power system. A recursive least-squares algorithm (RLSA) with a varying forgetting factor is applied to identify online the reduced-order linearlized model which contains dominant inter-area low frequency oscillations. Based on this linearlized model, the generalized predictive control scheme considering control output constraints is employed to obtain the optimal control signal in each sampling interval. Case studies are undertaken on a two-area fourmachine power system and the New England 10-machine 39-bus power system, respectively. Simulation results show that the proposed adaptive WADC not only can damp the inter-area oscillations effectively under a wide range of operation conditions and different disturbances, but also has better robustness against to the time delay existing in the remote signals. The comparison studies with the conventional lead-lag WADC are also provided.

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Control loops selection to damp inter-area oscillations of electrical networks

Cited by 79 publications

References 12 publications

Simultaneous Robust Coordinated Damping Control of Power System Stabilizers (PSSs), Static Var Compensator (SVC) and Doubly-Fed Induction Generator Power Oscillation Dampers (DFIG PODs) in Multimachine Power Systems

Simultaneous Robust Coordinated Damping Control of Power System Stabilizers (PSSs), Static Var Compensator (SVC) and Doubly-Fed Induction Generator Power Oscillation Dampers (DFIG PODs) in Multimachine Power Systems

Optimal robust stabilizer design based on UPFC for interconnected power systems considering time delay

Damping of Inter-Area Low Frequency Oscillation Using an Adaptive Wide-Area Damping Controller

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