The transient stability analysis is the most time-consuming computer simulation in power system studies. For this reason, in recent years, parallel processing has been applied for implementing on-line time-domain simulations of power system transient behaviour. As is well known, the problem of power system transient simulation consists, basically in the solution of an initial value problem for a mixed set of Ordinary Differential Equations (ODE) and algebraic equations. The objective of this paper is to present an algorithm based on Shifted-Picard dynamic iterations, which solves the above mentioned set of non-linear Differential Algebraic Equations (DAE) by the iterative solution of a linear set of DAE. This feature is important because the time behaviour of the linear set of differential equations can be obtained by the solution of an integral. In this case, a multiprocessor parallel-in-time implementation of such algorithms is possible because each processor is devoted to the evaluation of the required variables relative to each time step. Moreover, parallelism-in-time allows multigrid techniques to be implemented in a natural way. Test results on realistic-sized power systems are presented.

Parallel‐in‐time method based on shifted‐picard iterations for power system ty‐ansient stability analysis / Brucoli, M; De Roma, A; La Scala, M; Trovato, M. - In: EUROPEAN TRANSACTIONS ON ELECTRICAL POWER ENGINEERING. - ISSN 0939-3072. - STAMPA. - 4:6(1994), pp. 525-532. [10.1002/etep.4450040621]

Parallel‐in‐time method based on shifted‐picard iterations for power system ty‐ansient stability analysis

Brucoli M;La Scala M;Trovato M
1994-01-01

Abstract

The transient stability analysis is the most time-consuming computer simulation in power system studies. For this reason, in recent years, parallel processing has been applied for implementing on-line time-domain simulations of power system transient behaviour. As is well known, the problem of power system transient simulation consists, basically in the solution of an initial value problem for a mixed set of Ordinary Differential Equations (ODE) and algebraic equations. The objective of this paper is to present an algorithm based on Shifted-Picard dynamic iterations, which solves the above mentioned set of non-linear Differential Algebraic Equations (DAE) by the iterative solution of a linear set of DAE. This feature is important because the time behaviour of the linear set of differential equations can be obtained by the solution of an integral. In this case, a multiprocessor parallel-in-time implementation of such algorithms is possible because each processor is devoted to the evaluation of the required variables relative to each time step. Moreover, parallelism-in-time allows multigrid techniques to be implemented in a natural way. Test results on realistic-sized power systems are presented.
1994
Parallel‐in‐time method based on shifted‐picard iterations for power system ty‐ansient stability analysis / Brucoli, M; De Roma, A; La Scala, M; Trovato, M. - In: EUROPEAN TRANSACTIONS ON ELECTRICAL POWER ENGINEERING. - ISSN 0939-3072. - STAMPA. - 4:6(1994), pp. 525-532. [10.1002/etep.4450040621]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/724
Citazioni
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 4
social impact