Assessment of the stability of a multimachine power system by the transient energy margin

Stanton, S. E.

doi:10.31274/rtd-180814-6009

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…The individual-machine thinking was later developed by Stanton in Refs. [5]- [7]. In these studies, the individual-machine transient energy was developed to perform a machine-by-machine analysis [5].…”

Section: Introduction a Literature Reviewmentioning

confidence: 99%

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Newtonian Mechanics Based Transient Stability PART II: Individual Machine

Wang¹,

Yu²,

Foley³

et al. 2021

Preprint

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The paper analyzes the mechanisms of the individualmachine and also its advantages in TSA. Based on the criticalmachine monitoring of the original system trajectory, it is clarified that the individual-machine strictly follows the machine paradigms. These strict followings of the paradigms bring the two advantages of the individual-machine method in TSA: (i) the individual-machine trajectory stability is characterized precisely, and (ii) the individualmachine trajectory variance is depicted clearly at IMPP. The two advantages are fully reflected in the precise definitions of individualmachine based transient stability concepts. In particular, the critical machine swing is clearly depicted through the IDSP or IDLP of the machine, the critical stability of the system is strictly defined as the critical stability of the most-severely disturbed machine, and the individual-machine potential energy surface is also precisely modeled through the IMPE of the machine. Simulation results show the effectiveness of the individual-machine in TSA.

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Section: Introduction a Literature Reviewmentioning

confidence: 99%

“…[5]- [7]. In these studies, the individual-machine transient energy was developed to perform a machine-by-machine analysis [5]. Conjectures about the individual-machine potential energy surface were given in Ref.…”

Section: Introduction a Literature Reviewmentioning

confidence: 99%

Newtonian Mechanics Based Transient Stability PART II: Individual Machine

Wang¹,

Yu²,

Foley³

et al. 2021

Preprint

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“…Stimulated by this concept of individual-machine perspective, Vittal and Fouad [7], [8] stated that the instability of the system depends on the transient energy of individual machines and IMEF was proposed. Stanton [9], [10] performed a detailed machine-bymachine analysis of a multi-machine instability, and PEF was used to quantify the energy of a local control action. Later, EAC of the critical machine is applied in PEF method to identify system stability [12].…”

mentioning

confidence: 99%

Transient Stability Assessment Using Individual Machine Equal Area Criterion Part I: Unity Principle

Wang¹,

Non-member²,

Yu³

et al. 2017

Preprint

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Analyzing system trajectory from the perspective of individual machines provides a distinctive angle to analyze the transient stability of power systems. This two-paper series propose a direct-time-domain method that is based on the individualmachine equal area criterion. In the first paper, by examining the mapping between the trajectory and power-vs-angle curve of an individual machine, the stability property to characterize a critical machine is clarified. The mapping between the system trajectory and individual-machine equal area criterion is established. Furthermore, a unity principle between the individual-machine stability and system stability is proposed. It is proved that the instability of the system can be confirmed by finding any one unstable critical machine, thence, the transient stability of a multimachine system can be monitored in an individual-machine way in transient stability assessment.

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“…In [8], [9], Vittal and Fouad stated that the instability of a single machine would be identical to the instability of the system and IMEF was firstly proposed therein. Later, Stanton performed a detailed machine by machine analysis of the energy of a multi-machine instability [10]. Stanton also defined PEF to quantify the energy transactions that make a machine transfer from stable to unstable.…”

mentioning

confidence: 99%

Wide area power system transient stability assessment using catastrophe theory method and synchrophasors

Wang

Girgis

Aravnthan

et al. 2011

2011 IEEE Power and Energy Society General Meeting

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Analyzing the stability of the power system by using a few machines is promising for transient stability assessment. A hybrid direct-time-domain method that is fully based on the thinking of partial energy function is proposed in this paper. During postfault period, a pair of machines with high rotor speed difference is defined as couple machines, and the stability analysis of the system is transformed into that of several pairs of couple machines. Based on the prediction of power-angle curve of couple machines within a sampling window after fault clearing, the proposed method avoids the definition of Center of Inertia (COI) and it can also evaluate the stability margin of the system by using the predicted power-angle curve. Simulation results demonstrate its effectiveness in transient stability assessment.

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Assessment of the stability of a multimachine power system by the transient energy margin

Cited by 5 publications

References 10 publications

Newtonian Mechanics Based Transient Stability PART II: Individual Machine

Newtonian Mechanics Based Transient Stability PART II: Individual Machine

Transient Stability Assessment Using Individual Machine Equal Area Criterion Part I: Unity Principle

Wide area power system transient stability assessment using catastrophe theory method and synchrophasors

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