This chapter discusses a methodology for the assessment of corrective control actions to be implemented in power system after the occurrence of a severe contingency. This pre-calculation can be intended as one of the contingency screening functions to be developed within each Supervisory Control and Data Acquisition (SCADA)/Energy Management Systems (EMS) control cycle and in the framework of online Dynamic Security Assessment (DSA). It is assumed that, based on latest system state information and calculations carried out for a selected number of severe fault events, pre-calculated control actions can be applied on actuators during the power system transient that follows such contingencies. The methodology can be adopted, for example, for the arming of Remedial Actions Schemes based on load shedding, generation shedding, Flexible AC Transmission Systems (FACTS) or any other fast actuator. The goal is preserving power system stability and its integrity even after that a specific severe contingency had occurred. The proposed methodology is based on the conversion of a dynamic optimization problem in the continuous time domain, into a static optimization problem in the discrete time domain. In order to show the key working principle of the proposed approach, a dynamic optimization problem is first formulated in his general form and then solved with the classical method and through discretization. Finally, the methodology is explicitly adapted to the set of equations and constraints that represent the dynamic behaviour of power systems. The same general methodology is then also applied to the solution of a preventive control optimization problem.

Optimization methods for preventive/corrective control in transmission systems / La Scala, Massimo; Bruno, Sergio - In: Advances in Power System Modelling, Control and Stability Analysis / [a cura di] Federico Milano. - STAMPA. - Stevenage, UK : IET, 2016. - ISBN 978-1-78561-001-1. - pp. 163-188 [10.1049/PBPO086E_ch5]

Optimization methods for preventive/corrective control in transmission systems

Massimo La Scala;Sergio Bruno
2016-01-01

Abstract

This chapter discusses a methodology for the assessment of corrective control actions to be implemented in power system after the occurrence of a severe contingency. This pre-calculation can be intended as one of the contingency screening functions to be developed within each Supervisory Control and Data Acquisition (SCADA)/Energy Management Systems (EMS) control cycle and in the framework of online Dynamic Security Assessment (DSA). It is assumed that, based on latest system state information and calculations carried out for a selected number of severe fault events, pre-calculated control actions can be applied on actuators during the power system transient that follows such contingencies. The methodology can be adopted, for example, for the arming of Remedial Actions Schemes based on load shedding, generation shedding, Flexible AC Transmission Systems (FACTS) or any other fast actuator. The goal is preserving power system stability and its integrity even after that a specific severe contingency had occurred. The proposed methodology is based on the conversion of a dynamic optimization problem in the continuous time domain, into a static optimization problem in the discrete time domain. In order to show the key working principle of the proposed approach, a dynamic optimization problem is first formulated in his general form and then solved with the classical method and through discretization. Finally, the methodology is explicitly adapted to the set of equations and constraints that represent the dynamic behaviour of power systems. The same general methodology is then also applied to the solution of a preventive control optimization problem.
2016
Advances in Power System Modelling, Control and Stability Analysis
978-1-78561-001-1
IET
Optimization methods for preventive/corrective control in transmission systems / La Scala, Massimo; Bruno, Sergio - In: Advances in Power System Modelling, Control and Stability Analysis / [a cura di] Federico Milano. - STAMPA. - Stevenage, UK : IET, 2016. - ISBN 978-1-78561-001-1. - pp. 163-188 [10.1049/PBPO086E_ch5]
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/11589/77741
Citazioni
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact