Switching as means of control in the power system

Glavitsch, H.

doi:10.1016/0142-0615(85)90014-6

Cited by 83 publications

(56 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For lines that are not switched out, Kirchhoff's voltage law must be respected (3). Furthermore, we only allow k lines to be switched simultaneously (6) and only lines in S are switchable (7).…”

Section: Optimal Transmission Switchingmentioning

confidence: 99%

“…Based on these observations, it is easy to see that it may be beneficial in mesh networks to take some lines out of operation -to either decrease system cost or increase reliability [3,4]. The process of taking out lines and bringing them back in is done by opening (respectively closing) a switch at the end of the line and is referred to as switching.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investment in electricity networks with transmission switching

Villumsen

Philpott

2012

European Journal of Operational Research

View full text Add to dashboard Cite

We consider the application of Dantzig-Wolfe decomposition to stochastic integer programming problems arising in the capacity planning of electricity transmission networks that have some switchable transmission elements. The decomposition enables a column-generation algorithm to be applied, which allows the solution of large problem instances. The methodology is illustrated by its application to a problem of determining the optimal investment in switching equipment and transmission capacity for an existing network. Computational tests on IEEE test networks with 73 nodes and 118 nodes confirm the efficiency of the approach.

show abstract

Section: Optimal Transmission Switchingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investment in electricity networks with transmission switching

Villumsen

Philpott

2012

European Journal of Operational Research

View full text Add to dashboard Cite

show abstract

“…Comprehensive reviews of techniques used for dealing with switching actions until the mid 80's and the end of the 90's can be found in [104] and [99], respectively.…”

Section: Handling Of Discrete Variables With Large Stepsmentioning

confidence: 99%

State-of-the-art, challenges, and future trends in security constrained optimal power flow

Capitanescu

Martínez-Ramos

Panciatici³

et al. 2011

Electric Power Systems Research

400

249

View full text Add to dashboard Cite

This paper addresses the main challenges to the security constrained optimal power flow (SCOPF) computations. We first discuss the issues related to the SCOPF problem formulation such as the use of a limited number of corrective actions in the post-contingency states and the modeling of voltage and transient stability constraints. Then we deal with the challenges to the techniques for solving the SCOPF, focusing mainly on: approaches to reduce the size of the problem by either efficiently identifying the binding contingencies and including only these contingencies in the SCOPF or by using approximate models for the post-contingency states, and the handling of discrete variables. We finally address the current trend of extending the SCOPF formulation to take into account the increasing levels of uncertainty in the operation planning. For each such topic we provide a review of the state of the art, we identify the advances that are needed, and we indicate ways to bridge the gap between the current state of the art and these needs. * Corresponding author Email addresses: capitane@montefiore.ulg.ac.be (F. Capitanescu), camel@us.es (J.L. Martinez Ramos), patrick.panciatici@rte-france.com (P. Panciatici), kirschen@uw.edu (D. Kirschen), alejandromm@us.es (A. Marano Marcolini), ludovic.platbrood@gdfsuez.com (L. Platbrood), l.wehenkel@ulg.ac.be (L. Wehenkel) Preprint submitted to Electric Power Systems ResearchMay 2, 2011Keywords: mixed integer linear programming, mixed integer nonlinear programming, nonlinear programming, optimal power flow, security constrained optimal power flow MotivationThe SCOPF [1,2] is an extension of the OPF problem [3,4] which takes into account constraints arising from the operation of the system under a set of postulated contingencies. The SCOPF problem is a nonlinear, nonconvex, large-scale optimization problem, with both continuous and discrete variables [1,2]. The SCOPF belongs therefore to the class of optimization problems called Mixed Integer Non-Linear Programming (MINLP).The SCOPF has become an essential tool for many Transmission System Operators (TSOs) for the planning, operational planning, and real time operation of their system [5,6, 7,8]. Furthermore, in several electricity markets (e.g. PJM, New-England, California, etc.) the locational marginal prices calculated using a DC SCOPF are used to price electricity. This approach is also under consideration in other systems [9,10,11].Several papers discussing the challenges to the OPF problem were published during the 90's [5,6, 7,8]. Since then several important changes have taken place not only in power systems operation and control but also in mathematical programming:• Power systems operate today in conditions that are more "stressed" and were not foreseen at the planning stage. In particular the increase in load has not been supported by an adequate upgrade of the generation and transmission systems. Furthermore the creation of electricity markets has led to the trading of significant amounts of electrical energy over lo...

show abstract

“…Transmission switching has been proposed as a corrective mechanism for problems such as over or under voltage violations, line overloading, and system security, see [2], [4], [11], [12], [21], [31]- [34]. Transmission switching can also be used to help reduce system losses, see [3] and [10], and it can be used as a congestion management tool as well, [13].…”

Section: Overview Of Transmission Switchingmentioning

confidence: 99%