A new congestion management method considering voltage stability under electric market

Author

Tang, Yi ; Ma, Bin ; Li, Yang

Author_Institution

Southeast Univ., Nanjing

fYear

2008

fDate

6-9 April 2008

Firstpage

567

Lastpage

571

Abstract

A congestion management method considering both voltage stability and economic cost under electric market was proposed. Two steps were included in this method. The load margin was used as a criterion for assessing voltage stability in the first step which was calculated by interior point method. Next, a new criterion called the economic sensitivity of lading margin related to generator (ESMLG) was proposed which means the economic value increment of each generator for increasing unit load margin. Based on load margin the ESMLG values are calculated and ranked, then the generator with the lowest ESMLG value will be adjusted to increase load margin. Exam of IEEE 14 nodes system is used to verify the effectiveness of this new congestion management method.

Keywords

costing; power markets; power system economics; power system management; power system stability; ESMLG values; IEEE 14 nodes system; congestion management method; economic cost; economic sensitivity; electric market; interior point method; lading margin; unit load margin; voltage stability; Costs; Energy management; Environmental economics; Environmental management; Power generation economics; Power system economics; Power system management; Power system stability; Stability criteria; Voltage; ESMLG; congestion management; electric market; load margin; voltage stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Utility Deregulation and Restructuring and Power Technologies, 2008. DRPT 2008. Third International Conference on

Conference_Location

Nanjuing

Print_ISBN

978-7-900714-13-8

Electronic_ISBN

978-7-900714-13-8

Type

conf

DOI

10.1109/DRPT.2008.4523470

Filename

4523470