Large-scale active-load modulation for angle stability improvement

Kamwa, Innocent; Grondin, R.; Asber, Dalal; Gingras, J.P.; Trudel, Gilles

doi:10.1109/59.761884

Cited by 24 publications

(17 citation statements)

References 13 publications

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“…Fig. 9 illustrates the Matlab/Simulink model of a multi-loop PSS with one speed-sensitive local and two PMU-based remote feedback loop or global signals [16], [20]. For simplicity, only one global input will be fully implemented in the sequel.…”

Section: Optimization Based Pss Designmentioning

confidence: 99%

“…It is rooted instead in the multi-level control theory [25]- [29], especially of large-scale systems [30], [31]. In the context of wide-area stabilizing control of bulk power systems, this specific architecture was first discussed in [16], [19], [20] where it was preferred for its higher operational flexibility and reliability, especially when some remote signals are lost. Under such circumstances, the controlled power system is still viable (although with a reduced performance level), owing to the fact that a fully autonomous and decentralized layer without any communication link is always present to maintain a standard performance level.…”

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confidence: 99%

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Wide-area measurement based stabilizing control of large power systems-a decentralized/hierarchical approach

Kamwa

Grondin

Hebert

2001

IEEE Trans. Power Syst.

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527

248

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The aim of this paper is to assess the capability of the emerging synchronized phasor measurement technology in improving the overall stability of the Hydro-Quebec's transmission system through supplementary modulation of voltage regulators. Following a thorough singular value and eigenvalue analysis of the system dynamic interactions, five control sites consisting of four generators and one synchronous condenser are chosen to implement new power system stabilizers with a supplementary input from remote phasor measuring units, geographically spread over nine electrically coherent areas. Since the remote feedback loops are built on top of an existing decentralized control system, this design approach results in a decentralized/hierarchical control architecture with significant advantages in terms of reliability and operational flexibility. A systematic control and measurement pairing yielded four dominant natural loops, each associated with a significant open-loop inter-area oscillatory mode at 0.06, 0.4, 0.7 and 0.95 Hz respectively. These PSSs have a speed sensitive local loop operating in the usual way, and a wide-area measurement based global loop which involves a single differential frequency signal between two suitably selected areas. The tuning and coordination technique for these advanced multiple input signals PSSs is described. Their impacts on the system is assessed using both small-signal analysis and nonlinear simulations in a transient stability program. Our study clearly shows by simulation that wide-area stabilizing controllers have a significant potential in improving the dynamic performance of the Hydro-Quebec's existing power system, even when implemented on five control sites only.Index Terms-Control structure selection, damping controller, dynamic stability, inter-area oscillations, multi-level control, phasor measurement unit (PMU), power system stabilizer (PSS), small-signal stability, wide-area control, wide-area measurement.

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Section: Optimization Based Pss Designmentioning

confidence: 99%

mentioning

confidence: 99%

Wide-area measurement based stabilizing control of large power systems-a decentralized/hierarchical approach

Kamwa

Grondin

Hebert

2001

IEEE Trans. Power Syst.

Self Cite

527

248

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“…The use of active load control was discussed already in 1968 [5] but at that time it was not an economical option. In more recent years the importance of giving the load a more active role in stabilizing the system has been identified and there is a renewed interest in load control [6].…”

Section: Introductionmentioning

confidence: 99%

RT-SIL performance analysis of synchrophasor-and-active load-based power system damping controllers

Jónsdóttir

Almas

Baudette

et al. 2015

2015 IEEE Power &Amp; Energy Society General Meeting

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“…In reference [15], HydreQuebec studied persistently troublesome instabilities on their system, ones that were uncontrollable with local controls alone. They found that simulations could be stabilized with load modulation using signals derived from a mix of local information and global, i.e.…”

Section: Area Controlmentioning

confidence: 99%

Adaptive protection as preventive and emergency control

Damborg

Kim²,

Huang³

et al.

2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134)

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Recent advances suggest expanding the concept of power system protection to "adaptive protection." It is important to recognize that both "demand pull" and "technology push" drive this trend. A literature survey from 1988 to 1999 shows adaptive relaying ideas have advanced from early concepts to experiments in wide-area emergency control. A wide-area control system contains three hierarchical levels of protection and control -local, substation and interconnected wide area. At least two operating scenarios are conceivable. Under the first scenario, one anticipates vulnerabilities and positions the system to be more robust in the event of a threat or hidden failures. The second scenario calls for the system to respond to failure events by, for example, modifying the protection system to defend against future events in case of a component failure. To complete this concept of adaptive protection as a preventive and emergency controller, it remains to identify the important issues. This paper identifies, for each level, the control action necessary and the system required to implement that control.

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Large-scale active-load modulation for angle stability improvement

Cited by 24 publications

References 13 publications

Wide-area measurement based stabilizing control of large power systems-a decentralized/hierarchical approach

Wide-area measurement based stabilizing control of large power systems-a decentralized/hierarchical approach

RT-SIL performance analysis of synchrophasor-and-active load-based power system damping controllers

Adaptive protection as preventive and emergency control

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