Method for generation rescheduling and load shedding to alleviate line overloads using local optimisation

Author

Shandilya, A. ; Gupta, H. ; Sharma, J.

Author_Institution

Dept. of Electr. Eng., Roorkee Univ., India

Volume

140

Issue

5

fYear

1993

fDate

9/1/1993 12:00:00 AM

Firstpage

337

Lastpage

342

Abstract

The alleviation of emergency transmission line overload is a critical problem in power system operation. A method is presented for generation rescheduling and load shedding to alleviate line overloads, with the help of a local optimisation concept. The method developed is superior to existing methods, as the new secure operating point is obtained for all line overload cases efficiently, and a significantly smaller amount of load shedding is required. It is an aid to the load dispatcher and will find extensive applications in operational planning, security studies and the reliability evaluation of power systems. Test results for the 14-bus, 118-bus IEEE test systems, 6-bus and 26-bus SPC systems, and the 64-bus model of the North-West power system of India are presented to show the effectiveness of the method

Keywords

electric power generation; load dispatching; load shedding; power system control; power system reliability; power transmission lines; scheduling; 114-bus IEEE test system; 118-bus IEEE test system; 26-bus SPC system; 6-bus SPC system; 64-bus model; India; North-West power system; emergency transmission line overload; generation rescheduling; line overloads alleviation; load dispatcher; load shedding; local optimisation; operational planning; power systems; reliability evaluation; secure operating point; security studies;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings C

Publisher

iet

ISSN

0143-7046

Type

jour

Filename

237899