105795.pdf (690.11 kB)
An observability index for distribution networks using information entropy
conference contribution
posted on 2023-05-23, 10:45 authored by Bernd BrinkmannBernd Brinkmann, Michael NegnevitskyMichael Negnevitsky, Yee, T, Nguyen, TInformation about the accuracy of state estimation results in distribution networks is crucial for an effective and safe network management. This paper explores a new method of quantifying the uncertainty of a state estimation result by using information entropy as an index for observability. This index has the ability to represent the network observability as a single continuous number, making it possible for the network operator to objectively evaluate the reliability of a state estimation result. This paper also investigates the changes in observability due to load variations and demonstrates how an optimal meter placement method based on the proposed observability index can be implemented. The proposed method has been tested via simulations on a modified IEEE 34 Bus Test Feeder and was compared with an existing method.
History
Publication title
2015 Australasian Universities Power Engineering Conference (AUPEC)Pagination
1-6ISBN
978-1-4799-8725-2Department/School
School of EngineeringPublisher
IEEE-Inst Electrical Electronics Engineers IncPlace of publication
New Jersey, USAEvent title
2015 Australasian Universities Power Engineering Conference (AUPEC)Event Venue
Wollongong, NSWDate of Event (Start Date)
2015-09-27Date of Event (End Date)
2015-09-30Rights statement
Copyright 2015 IEEERepository Status
- Open