A robust damping controller for power systems using linear matrix inequalities

In this paper information provided by a synchronized phasor measurements system is used to identify the emergence of low damped oscillation, to select control parameters and to provide input signals to the controllers. Prony analysis is used for the oscillation modes identification. A gain-schedule control allows the selection of the parameters of a central controller according to the identified modes and mode shapes. The control parameters for selected operating points are determined by a nonconvex, nonsmooth optimization method.

show abstract

“…Robust and adaptive control have been considered for the design of power system stabilizers [7], [8], [9], [10], [11], [12].…”

Section: The Control Schemementioning

confidence: 99%

Power system control based on the identification of oscillation modes

Prioste

Silva

Decker

2009

2009 IEEE Bucharest PowerTech

View full text Add to dashboard Cite

show abstract

“…Definition: The interarea variables are variables that satisfy constant (1) when all interconnections among the subsystems , are removed, and the system is free of disturbances.…”

Section: Robust Wide-area Controller Designmentioning

confidence: 99%

“…The LMI approach can also accommodate a combination of and criteria, as demonstrated in [1]. The power system in Fig.…”

Section: Robust Wide-area Controller Designmentioning

confidence: 99%

“…However, if the damping controller design is based on the robustness principle, minor errors in modeling will be mitigated, and the closed-loop system will maintain satisfactory performance level. Several efforts have been devoted to the design of power system controllers, especially PSSs using optimization methods in the case of unstructured perturbations [1]- [3]. The possibility of strong coupling between the local modes and the interarea modes would make the tuning of LPSSs for damping all modes nearly impossible when there is no supervisory level controller.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Power system stability agents using robust wide area control

Heydt

Mili

2002

IEEE Trans. Power Syst.

Self Cite

214

View full text Add to dashboard Cite

Conventional power system stabilizers (PSSs) are major local damping controllers acting through generator excitation systems. There are studies that suggest that remote signals could increase damping beyond that attainable by local signals. In this paper, a supervisory level power system stabilizer (SPSS) using wide area measurements is proposed. The robustness of the proposed controller is capable of compensating for the nonlinear dynamic operation of power systems and uncertain disturbances. The coordination of the robust SPSSs and local PSSs is implemented based on the principles of multiagent system theory. This theory is an active branch of applications in distributed artificial intelligence (DAI). The performance of the robust controller as a power system stability agent is studied using a 29-machine 179-bus power system example.Index Terms-Multiagent system, power system damping, power system stabilizer, robust control, wide area control.

show abstract

“…(Note that some generators will have to increase their output as a result of the restricted output of other generators). Recent research on the application of synchronized phasor measurements to damp inter-area oscillations has proved to be very efficient compared to classical local controllers [14]. The main innovation comes from the fact that when using real-time measurements for feedback controllers, there is a "global vision" of the network.…”

Section: Aspects Of System Control Under Deregulated Environmentmentioning

confidence: 99%

Measurements for adaptive protection and control in a competitive market

Phadke

Hadjsaïd²

Proceedings of the 33rd Annual Hawaii International Conference on System Sciences

View full text Add to dashboard Cite

In a competitive market where generating companies compete for loads with open access to the transmission network, the protection and control techniques in use take on a special significance. In this new environment there are two issues which are related to the uses of real-time measurements. First, there is the possibility that the preset control and protection decisions do not necessarily perform optimally when the System State changes, in particular as the generation pattern changes significantly. The real-time measurements can be of great help in adapting the protection and control strategies to the new environment. The second issue deals with the problem of identifying what control processes are at work on the network at any given time. It would be interesting to investigate if precise measurements made on the network in real time could provide definitive assessment of what is happening on the network. The paper will expand on the two ideas described above.

show abstract

A robust damping controller for power systems using linear matrix inequalities

Cited by 20 publications

References 9 publications

Power system control based on the identification of oscillation modes

Power system control based on the identification of oscillation modes

Power system stability agents using robust wide area control

Measurements for adaptive protection and control in a competitive market

Contact Info

Product

Resources

About