Distributed OPF of Larges Scale Interaction Power Systems

Author

Huang, Shaowei ; Chen, Ying ; Shen, Chen

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing

fYear

2008

fDate

12-15 Oct. 2008

Firstpage

1

Lastpage

6

Abstract

In this paper, a new algorithm for decentralized OPF is proposed, which is based on decomposition of KKT conditions of the global OPF. As implicit functions adopted, a boundary optimal problem is coined to formulate the global OPF in the decomposition and coordination manner. An improved inner-point method is applied to solve this boundary optimal problem, which makes use of a Jacobian-Free Newton GMRES(m) method to enhance its convergence rates as well as to reduce the communication costs. The IEEE 39 and 118 bus systems are used for case studies. Test results prove that the proposed decentralized OPF algorithm has strong convergence and requires small communication costs, which makes it feasible in wide area network environments.

Keywords

Newton method; load flow; power system interconnection; IEEE 118 bus systems; IEEE 39 bus systems; Jacobian-Free Newton GMRES method; KKT condition decomposition; communication costs; decentralized OPF algorithm; distributed OPF; first-order optimality conditions; inner-point method; large scale interaction power systems; wide area network environments; Computer networks; Convergence; Costs; Electricity supply industry; Jacobian matrices; Lagrangian functions; Power system interconnection; Power system management; Power system modeling; Power systems; Decentralized computing; Jacobian-Free GMRES(m); OPF;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology and IEEE Power India Conference, 2008. POWERCON 2008. Joint International Conference on

Conference_Location

New Delhi

Print_ISBN

978-1-4244-1763-6

Electronic_ISBN

978-1-4244-1762-9

Type

conf

DOI

10.1109/ICPST.2008.4745191

Filename

4745191