An intelligent islanding technique considering load balance for distribution system with DGs

Author

Lu, Yuping ; Yi, Xin ; Wu, Jian ; Lin, Xia

Author_Institution

Dept. of Electr. Eng., Southeast Univ., Nanjing

fYear

0

fDate

0-0 0

Abstract

The island is an important operation mode of distribution system with distributed generators. The principles of islanding are presented. Based on the simplified model of distribution system, a new concept of cell is defined and an islanding mathematic model as well as a heuristic islanding algorithm through combining cells is proposed. The algorithm can well satisfy the constraint conditions while the process of islanding, and achieve a feasible islanding scheme in a short time. Thus, the operation mode of distribution system can change swiftly under fault states. The load grade attribute is utilized to enhance islanding algorithm selective to load. Thus, the method ensures not only priority services for important loads, but also be compatible with the under-frequency load shedding

Keywords

distributed power generation; fault diagnosis; load shedding; mathematical analysis; distributed generators; fault states; heuristic islanding algorithm; intelligent islanding technique; load balance; mathematic model islanding; underfrequency load shedding; Control systems; Distributed control; Electronic mail; Mathematical model; Power generation; Power supplies; Power system interconnection; Power system protection; Power system reliability; Power system security; Distributed generation; distribution networks; island; operation mode;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society General Meeting, 2006. IEEE

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-0493-2

Type

conf

DOI

10.1109/PES.2006.1709047

Filename

1709047