Congestion Management Methods Research Articles

Nordic congestion's arrangement as a model for Europe? Physical constraints vs. economic incentives

Congestion on power grids seems a physical reality, a “hard” fact easy to check. Our paper models a different idea: congestion signal may be distorted by transmission system operators (TSOs). Indeed, congestion signals are not physical data but “home made” conventions directly set by the TSOs in charge of the security of the system. These security norms are not stable and invariable because some flexibility is needed by the very nature of the power flows and because lines capacity limits are not constant. TSOs, therefore, define the congestion signal on a variable, complex and non-transparent constraint and may manipulate it for monetary purposes or for other personal agenda. In Nordic countries the coexistence of two congestion management methods in a “Light Handed Regulation” framework makes this opportunistic behaviour even more likely.

A computationally simple method for cost-efficient generation rescheduling and load shedding for congestion management

This paper describes a method of congestion management by generation rescheduling and load shedding. The sensitivities of the overloaded lines to bus injections and the costs of generation and load shedding are considered for ranking the generation and load buses. The new generation and load shedding schedule for these buses are then computed based on a simple method considering cost and sensitivity to line currents. The algorithm will help the system operator to generate the contingency plan quickly for secure operation of the system. Test results for three systems are presented. The results show that cost effective generation rescheduling and load shedding plans can be obtained to alleviate overloading of the transmission lines in a computationally efficient manner.

An Economic Assessment of Congestion Management Methods for Electricity Transmission Networks

This paper provides an economic analysis of five different congestion management methods which can be used to handle congestion in electricity transmission networks: explicit auctioning, implicit a...

Computer Simulation for the Evaluation of the IBM-SNA Congestion Management Method on GULFNET

The work presented in this article aims at using an available computer simulation package for the evaluation of the operation of the IBM-SNA-VRPC congestion management method on the present state of GULFNET, and a future design of the network that includes more nodes and provides higher reliability.

Computer Simulation for the Evaluation of the IBM-SNA Congestion Management Method on GULFNET

Computer Simulation for the Evaluation of the IBM-SNA Congestion Management Method on GULFNET