Towards the development of a systematic approach for voltage stability assessment of large-scale power systems

Gao, B.; Morison, G.K.; Kundur, P.

doi:10.1109/59.535672

Cited by 156 publications

(65 citation statements)

References 6 publications

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“…Therefore, developing a quick and accurate method for TTC calculation, which can effectively consider various likely contingencies and stability constraints, is still a technical challenge. Repeated Power Flow method (RPF) (Gao, Morison, & Kundur, 1996;Ou & Singh, 2003) repeatedly solves conventional power flow equations at a succession of points along the specified transfer directions while CPF solves a set of augmented power flow equations to obtain the solution curve passing through the nose point without encountering the numerical difficulty of ill-conditioning. Compared to any OPF method, RPF can provide P-V and V-Q curves for voltage stability studied.…”

Section: Review Of Previous Work On Deterministic Methodsmentioning

confidence: 99%

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Hojabri¹,

Hizam²

2011

Applications of MATLAB in Science and Engineering

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Section: Review Of Previous Work On Deterministic Methodsmentioning

confidence: 99%

Available Transfer Capability Calculation

Hojabri¹,

Hizam²

2011

Applications of MATLAB in Science and Engineering

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“…conside ring the fact that no solution may be possible by other co nventio nal methods under simi lar circumstance s. Voltage stab ility mar gin ( VSM ) is a measure of how close the syste m is 10 voltage insta bility. It is defined as the difference between the valu es of a Key System Paramet er ( KSP ) at the current operating condi tio n andthe voltage: stability critical point (17) . Here, KSP is definedas the total load increase in the selected buses.…”

Section: (4)mentioning

confidence: 99%

Fuzzy-expert system for voltage stability monitoring and control

Nageswararao

Jeyasurya

1998

Electric Power Systems Research

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and critical bus that participate in the instab ility and tJlerd)y el iminate the problems assoc iated with traditional methods. Hence. modal anal ysis techni que is not only used as a benchmark 100 1 for the development of the proposed fuzzy.expert system. but also as aD important tool for validatin g its accuracy.To understand this new approach. fundamental. conceptS of fuzzy logic basedon the theory o f appro ximate reasoni ng is dealt in detai l. To get further insight into this alterna te approa ch. a simple method using fuzzysets for the voltage-reacti ve power co ntro l to im prove the system vo ltage level is presen ted A modi fied IEEE 30 bus system is used as an exam ple to illustra te this method. Simulation results of this simple problem is encouragin g and has been a useful starti ng point for the proposed fuzzy-expc:n system for voltage stabili ty eval uation.The proposed fuuy-expm system consists of two main components . The system is taken as a case sIUdy to illustrate the proposed procedure. The expert system output is compared with the simulation results of a commerc ially available software ( VSTAB 4.1) output through modal analysis. The proposed system is fast and more efficient than conventional voltage stability methods.iii

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“…voltage, phase angle and problem related to frequency. [8]. In early age this signal instability problem was solved by amortisseurs implemented in generator rotors, later with the application of fast excitation system this was solved by development & utilization of Power System Stabilizer (PSS) and however in modern power system due to the connection of power grids in vast area, for inter area oscillation damping due to the ability of controlling line impedence, power flow and bus voltage, Flexible AC transmission Systems (FACTS) devices implementation offers an alternative solution [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Implementation of UPFC for Improvement of Power Stability

2017

IJRASET

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Abstract:The FACTS device which is usually called Unified Power Flow Controller (UPFC) can give synchronous control of basic power system parameters like voltage, flow of active power, flow of the reactive power, the impedance and the phase angle. In this research work, simulation models for various multi machine systems are carried out, e.g. a hybrid power system, a power system with two synchronized hydro power stations etc., without UPFC &with UPFC presented at the load end of the power system, has been developed. Simulation models have been intergrated into MATLAB based Power System Toolbox (PST) for analysis of their voltage stability. The study of these models were for voltage, active power flow, and reactive power flow and phase angle, with and without UPFC. The results of the power system with UPFC and without UPFC are compared.

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Towards the development of a systematic approach for voltage stability assessment of large-scale power systems

Cited by 156 publications

References 6 publications

Available Transfer Capability Calculation

Available Transfer Capability Calculation

Fuzzy-expert system for voltage stability monitoring and control

Implementation of UPFC for Improvement of Power Stability

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