Wide-area power oscillation damping control in Nordic equivalent system

Chaudhuri, Nilanjan Ray; Domahidi, Alexander; Majumder, Ritwik; Chaudhuri, Balarko; Korba, Petr; Ray, S.; Uhlen, Kjetil

doi:10.1049/iet-gtd.2009.0478

Cited by 62 publications

(37 citation statements)

References 20 publications

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“…The detailed model with approximately 3000 buses, 4000 branches and 1100 generators [31,25] was reduced down to a 20 generator, 36 bus equivalent system shown in Fig. 4.…”

Section: Test Systemmentioning

confidence: 99%

Fault‐tolerant control design to enhance damping of inter‐area oscillations in power grids

Sevilla

Jaimoukha

Chaudhuri

et al. 2013

Intl J Robust & Nonlinear

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SUMMARYIn this paper passive and active approaches for the design of fault-tolerant controllers (FTCs) are presented. The FTCs are used to improve the damping of inter-area oscillations in a power grid. The effectiveness of using a combination of local and remote (wide-area) feedback signals is first demonstrated. The challenge is then to guarantee a minimum level of dynamic performance following a loss of remote signals. The designs are based on regional pole-placement using Linear Matrix Inequalities (LMIs). First, a passive FTC is proposed. It is shown that the computation of the controller reduces to the solution of bilinear matrix inequalities. An iterative procedure is then used to design the controller. Next, as an alternative to active, time varying controllers, one for each fault scenario, we propose an approach for the design of a 'minimal switching' FTC in which only one controller is designed, but where a simple switch is incorporated into the controller structure. A case study in a linear and nonlinear Nordic equivalent system is presented to show that the closed-loop response using a conventional control (CC) design could deteriorate the performance or even destabilize the system if the remote signals are lost and to demonstrate the effectiveness of the proposed FTC designs.KEY WORDS: Fault-tolerant control, regional pole-placement, simultaneous design, power oscillation damping, local and remote feedback.

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“…The detailed model with approximately 3000 buses, 4000 branches and 1100 generators [31,25] was reduced down to a 20 generator, 36 bus equivalent system shown in Fig. 4.…”

Section: Test Systemmentioning

confidence: 99%

Fault‐tolerant control design to enhance damping of inter‐area oscillations in power grids

Sevilla

Jaimoukha

Chaudhuri

et al. 2013

Intl J Robust & Nonlinear

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, lack of availability of accurate and updated information about each and every dynamic component of a large-scale interconnected system and especial the model variations caused by the change of operation conditions and unavoidable faults put a fundamental limitation on such classical control design approaches. To overcome the inherent shortcomings of classical method based damping controllers, adaptive control method had been adopted to design an adaptive damping controller for power systems [6][7][8][9][10][11]. These controllers use a linear model with online updated parameters to design an adaptive controller to cope the model variation and uncertainty of large-scale power system.…”

Section: Introductionmentioning

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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“…The wide-area control technologies suggest a great ability to overcome the shortcomings of conventional local controllers. Using a global positioning system-based phasor measurement unit, the dynamic parameters of power systems (such as voltage, current, angle, and frequency) can be accurately measured, synchronized, and transferred over the whole power network by wide-area measurement systems [18,19]. This provides the possibility of constructing widearea damping control systems.…”

Section: Introductionmentioning

confidence: 99%

Concurrently attuned design of a WADC-based UPFC PSDC and multiinput PSS for improving power system dynamic performance

Hashemi¹,

Kazemzadeh²,

Azizian³

et al. 2014

Turk J Elec Eng & Comp Sci

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Abstract:A new controller design for a unified power flow controller (UPFC) for damping of power system swings, focusing on interarea modes, is described in this paper. The proposed controller is a dual-layer controller, where the first layer is derived from local signals and the second layer is supplied by global signals, as additional measuring information from suitable remote network locations, where swings are well observable. For damping of low-frequency swing in wide-area operation, since there is little system information in the active power as input of the conventional power system stabilizer (CPSS), the effectiveness of the CPSS is low. For solving this problem, a multiinput power system stabilizer (MPSS) is used for the damping of low-frequency swings, where the choice of the MPSS location is based on modal analysis. Since an uncoordinated controller for the UPFC and MPSS may cause unwanted interactions, the concurrently attuned design of the controller parameters is necessary. The attuned design is presented as an optimization problem, where the particle swarm optimization algorithm is applied to search for the optimal controller parameters.The introduced time delay by remote signal transmission and processing in a wide-area damping controller (WADC) may be problematic for system stability and may decrease system robustness. The Lyapunov theory and model reduction technique are used to investigate the delay-dependent stability of a power system equipped with a WADC. The designed controller's effectiveness and robustness are investigated on a typical 2-area 4-machine benchmark power system.

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Wide-area power oscillation damping control in Nordic equivalent system

Cited by 62 publications

References 20 publications

Fault‐tolerant control design to enhance damping of inter‐area oscillations in power grids

Fault‐tolerant control design to enhance damping of inter‐area oscillations in power grids

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

Concurrently attuned design of a WADC-based UPFC PSDC and multiinput PSS for improving power system dynamic performance

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