Investigation of schemes for incorporating generator Q limits in the fast decoupled load flow method

Sundaresh, Lakshmi and Rao, Nagendra PS (2015) Investigation of schemes for incorporating generator Q limits in the fast decoupled load flow method. In: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 40 (4). pp. 1155-1168.

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Abstract

Fast Decoupled Load Flow (FDLF) is a very popular and widely used power flow analysis method because of its simplicity and efficiency. Even though the basic FDLF algorithm is well investigated, the same is not true in the case of additional schemes/modifications required to obtain adjusted load flow solutions using the FDLF method. Handling generator Q limits is one such important feature needed in any practical load flow method. This paper presents a comprehensive investigation of two classes of schemes intended to handle this aspect i.e. the bus type switching scheme and the sensitivity scheme. We propose two new sensitivity based schemes and assess their performance in comparison with the existing schemes. In addition, a new scheme to avoid the possibility of anomalous solutions encountered while using the conventional schemes is also proposed and evaluated. Results from extensive simulation studies are provided to highlight the strengths and weaknesses of these existing and proposed schemes, especially from the point of view of reliability.

Item Type:	Journal Article
Publication:	SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES
Publisher:	INDIAN ACAD SCIENCES
Additional Information:	Copy right for this article belongs to the INDIAN ACAD SCIENCES, C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA
Keywords:	FDLF; adjusted load flow solutions; generator Q limits; bus type switching method; sensitivity method
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	24 Sep 2015 06:29
Last Modified:	24 Sep 2015 06:29
URI:	http://eprints.iisc.ac.in/id/eprint/52410

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