A unified model for the analysis of FACTS devices in damping power system oscillations. I. Single-machine infinite-bus power systems

Wang, H.F.; Swift, F.J.

doi:10.1109/61.584417

Cited by 165 publications

(75 citation statements)

References 12 publications

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“…Thus the effect of load flow change brought about by 13 the DFIG can be identified by modelling the DFIG as a constant power source. The total impact of the DFIG is that introduced by the DFIG's dynamic interactions with SGs, which can be estimated by applying the DTA, in addition to that of load flow change brought about by the DFIG.…”

Section: Discussionmentioning

confidence: 99%

“…Equation (3), (4) and (9) Heffron-Phillips model has been used for examining the damping torque contribution from a power system controller, such as a power system stabilizer (PSS), to affect power system electromechanical oscillation modes [9]- [13]. The model shown by …”

Section: Heffron-phillips Modelmentioning

confidence: 99%

“…Main contribution of the paper is the application of conventional method of damping torque analysis (DTA) to estimate the impact of DFIG's dynamic interactions with the SGs on power system electromechanical oscillation modes. In order to clearly demonstrate the procedure of applying the DTA method, Heffron-Phillips model of a multi-machine power system [9]- [13] with a grid-connected DFIG is established. In the established model, DFIG is treated as a feedback controller expressed by its transfer functions.…”

Section: Introductionmentioning

confidence: 99%

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Damping torque analysis of power systems with DFIGs for wind power generation

Wei

et al. 2016

IET Renewable Power Generation

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A grid-connected DFIG for wind power generation can affect power system small-signal angular stability in two ways: by changing the system load flow condition and dynamically interacting with synchronous generators (SGs). This paper presents the application of conventional method of damping torque analysis (DTA) to examine the effect of DFIG's dynamic interactions with SGs on the small-signal angular stability. It shows that the effect is due to the dynamic variation of power exchange between the DFIG and power system and can be estimated approximately by the DTA. Consequently, if the DFIG is modelled as a constant power source when the effect of zero dynamic interactions is assumed, the impact of change of load flow brought about by the DFIG can be determined. Thus the total effect of DFIG can be estimated from the result of DTA added on that of constant power source model. Applications of the DTA method proposed in the paper are discussed. An example of multi-machine power systems with grid-connected DFIGs are presented to demonstrate and validate the DTA method proposed and conclusions obtained in the paper.

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Section: Discussionmentioning

confidence: 99%

Section: Heffron-phillips Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Damping torque analysis of power systems with DFIGs for wind power generation

Wei

et al. 2016

IET Renewable Power Generation

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“…In Fig. 1, m E , m B and δ E , δ B are the amplitude modulation ratio and phase angles of the control signals to the UPFC [6] .…”

Section: Methodsmentioning

confidence: 99%

“…In [6] , unified Phillips-Heffron model of a power system is established for several types of FACTS devices installed in the system. This research establishes the linearized PhillipsHeffron model of a power system equipped with UPFC and demonstrates the application of the model in analyzing the damping effect of the UPFC and also designing UPFC based stabilizer to improve power system oscillation stability.…”

Section: Introductionmentioning

confidence: 99%

Comparison of UPFC-Based Stabilizer and PSS Performances on Damping of Power System Oscillations

Javani

Sadeghierad

Lesani

2009

American J. of Applied Sciences

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This paper establishes the linearized Phillips-Heffron model of a power system equipped with UPFC and demonstrates the application of the model in analyzing the damping effect of the UPFC and designing UPFC based stabilizer to improve power system oscillation stability. A comprehensive approach to the design of UPFC based stabilizer (power flow control, DC-voltage regulator and damping controller) is presented. In this case, the multi-machine power system with UPFC is studied and an example of power system is presented. It is shown that the DC voltage contributes negative damping to power system oscillations, which is confirmed by both eigenvalue computation and nonlinear simulation. To counterattack the negative damping effect due to the DC voltage regulator, UPFC based stabilizer is designed and its effectiveness is demonstrated by both eigenvalue computation and nonlinear simulation. Then the effects of UPFC and PSS on power systems are compared. Simulation results show that the performance of UPFC based stabilizer on damping of power system is better than PSS.

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Stability improvement in power systems with non‐linear TCSC control strategies

Lei

Retzmann

2000

Int Trans Elec Energy Syst

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In this perper. ci non-linear control scheme fiw tile TCSC (thyristor-c~ontrollecl series compensator) to deimpen power oscillations and to improve the trcinsient stability of power systems is presentecl. Based on an one-mcichirze-irifnite-btis system, CI non-linear mrithematiccil model is estciblished which is proven as an ciflnr nonlinenr system. With the help of the feeclbtick 1ineriri:ation technique, the ctffine non-linear model is e.ractly tninsferred to a linecir moclel, and then the control scheme is designeclfor the TCSC based on the global linearizcition, where the input signeil uses local meeisrirements onlv. The e~j+ctivene.s.s ant1 roblrstness of the proposed non-linecir control scheme nre detnmn.strcitetl with cin one-mtdiine test svstem, where the TCSC modell i t i s cind power system simtilations Lire perfr,rmecl by itsing the progrcitn system NETOMAC. I n compeiriwn with ( I conventioncrl control scheme. significtint improvements of clwomiccil performnnce in the test power ' sv.stem (ire cichieved bv the proposeel non-lineor control strcitegy fiw the TCSC.

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A unified model for the analysis of FACTS devices in damping power system oscillations. I. Single-machine infinite-bus power systems

Cited by 165 publications

References 12 publications

Damping torque analysis of power systems with DFIGs for wind power generation

Damping torque analysis of power systems with DFIGs for wind power generation

Comparison of UPFC-Based Stabilizer and PSS Performances on Damping of Power System Oscillations

Stability improvement in power systems with non‐linear TCSC control strategies

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