Research on distribution system state estimation with photovoltaic generation

Author

Dinghui Shen ; Haifeng Liang

Author_Institution

State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Baoding, China

fYear

2013

fDate

22-25 Oct. 2013

Firstpage

1

Lastpage

5

Abstract

A large number of photovoltaic generation(PVG) is introduced into distribution network, and state estimation is an serious problem to accurately estimate the output of the PVG and the state of distribution system to ensure stable and reliable operation. Characteristics of PVG is analyzed and unmonitored and measured PVG state estimation model is proposed in this paper. Improved algorithm based on the square of the branch current and branch power is proposed for distribution system state estimation with PVG. An example is to verify the validity of the two proposed photovoltaic model, and from the access location and penetration point, this paper analyses the impact of PVG on distribution state estimation on PG&E-69 nodes system.

Keywords

distributed power generation; distribution networks; photovoltaic power systems; power system state estimation; PG&E-69 nodes system; branch current; branch power; distribution network; distribution state estimation; distribution system state estimation; photovoltaic generation; photovoltaic model; Current measurement; Equations; Mathematical model; Photovoltaic systems; Power measurement; State estimation; branch-current; branch-power; distribution system; photovoltaic power; state estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2013 - 2013 IEEE Region 10 Conference (31194)

Conference_Location

Xi´an

ISSN

2159-3442

Print_ISBN

978-1-4799-2825-5

Type

conf

DOI

10.1109/TENCON.2013.6718985

Filename

6718985