Investigating effect of voltage changes on static ZIP load model in a microgrid environment

Author

Hatipoglu, Kenan ; Fidan, Ismail ; Radman, Ghadir

Author_Institution

Electr. & Comput. Eng. Dept., Tennessee Technol. Univ., Cookeville, TN, USA

fYear

2012

fDate

9-11 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

This paper presents effects of voltage changes on static polynomial (ZIP) load under three phase fault in a microgrid environment. The objective of the paper is investigating the behavior of the ZIP load model under a faulty condition. Load representation is a crucial factor on approaching power system realistically. The static characteristics of the load can be classified into constant power, constant current and constant impedance load, depending on the power relation to the voltage. For a constant impedance load (Z), the power dependence on voltage is quadratic, for a constant current (I) it is linear, and for a constant power (P) the power it is independent of changes in voltage. The ZIP model is a polynomial model that represents the sum of these three categories. Behavior of the ZIP loads connected to the Microgrid test system will be investigated and overall changes will be discussed.

Keywords

distributed power generation; electric impedance; power distribution faults; ZIP load model; constant current load; constant impedance load; constant power load; load representation; microgrid environment; microgrid test system; power dependence; static ZIP load model; three phase fault; voltage changes effect; Equations; Generators; Impedance; Load modeling; Mathematical model; Power system stability;

fLanguage

English

Publisher

ieee

Conference_Titel

North American Power Symposium (NAPS), 2012

Conference_Location

Champaign, IL

Print_ISBN

978-1-4673-2306-2

Electronic_ISBN

978-1-4673-2307-9

Type

conf

DOI

10.1109/NAPS.2012.6336407

Filename

6336407