Congestion Management Strategies of Real-Time Market

Qi Wang^*, Chunyu Zhang, Yi Ding

Center for Electric Power and Energy, Technical University of Denmark, Copenhagen, Denmark.

DOI: 10.4236/jpee.2014.24032                

Abstract

The high penetration of distributed energy resources (DERs) will significantly challenge the power system operation and control due to their stochastic, intermittent, and fluctuation characteristics. This enhances the difficulty of congestion management of power systems in cross-border electricity market among different regions. For handling this, the Real-Time Market is proposed for balancing capacity trading against congestions. Several strategies for Real-Time Market dealing with congestions are proposed. The strategy of two-stage crossborder markets in Day-ahead, Intra-day and Real Time Market are introduced with the congestion constraints complied. Pre-Contingency strategy is proposed as the advance preparation for the future congestion, and In-Day redispatch is used for regulation. Accordingly, the requirements on facilities considering telemetry and remote control in a fast manner are discussed at last.

Keywords

Congestion Management; Electricity Market; Real-Time Market; Distributed Energy Resources(DERs)

Conflicts of Interest

The authors declare no conflicts of interest.

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