Analysis of strategic interactions among generation companies using conjectured supply function equilibrium model

Author

Song, Yiqun ; Ni, Yixin ; Wen, Fushuan ; Wu, Felix F.

Author_Institution

Dept. of Electr. Eng., Shanghai Jiao Tong Univ., China

Volume

2

fYear

2003

fDate

13-17 July 2003

Abstract

In this paper, a novel conjectured supply function equilibrium (CSFE) based model is presented for simulating strategic interactions among generation companies (GenCos) in an electricity market under incomplete information. The model is derived theoretically from the well-acknowledged supply function equilibrium theory, and a general supply function for a GenCo is obtained based on its conjectural variation of the rivals´ accumulated response to a change in the market price. The CSFE is a general and flexible model for simulating strategic behaviors of GenCos in an electricity market with inelastic demand. Supply functions will be linear when GenCos hold constant conjectures, and a unique equilibrium exists when linear supply functions are provided to the market. Finally, the IEEE 30-bus system is used to show the essential features of the proposed model.

Keywords

electricity supply industry; power markets; strategic planning; conjectural variation; conjectured supply function equilibrium; electricity market; generation companies; incomplete information; inelastic demand; market power; simulating strategic behaviors; strategic interactions; Context modeling; Cost function; Elasticity; Electricity supply industry; Game theory; Oligopoly; Postal services; Power generation; Power system modeling; Protocols;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society General Meeting, 2003, IEEE

Print_ISBN

0-7803-7989-6

Type

conf

DOI

10.1109/PES.2003.1270418

Filename

1270418