Change search
ReferencesLink to record
Permanent link

Direct link
Online estimation of subsynchronous voltage components in power systems
KTH, School of Electrical Engineering (EES), Electrical Machines and Power Electronics.
2008 (English)In: IEEE Transactions on Power Delivery, ISSN 0885-8977, E-ISSN 0885-8877, Vol. 23, no 1, 410-418 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, the problem of online estimation of subsynchronous frequency components in the measured grid voltage is treated. Two estimation methods, one based on the use of lowpass filters and a recursive least square algorithm, are investigated and compared. In particular, due to its higher degree of freedom in the design, the lowpass filters-based estimation method is found to be the most appropriate and accordingly further analyzed. The method is improved to cope with inaccurate knowledge of the subsynchronous frequency. The simulation results prove the effectiveness of the investigated method both for the ideal and the disturbed case.

Place, publisher, year, edition, pages
2008. Vol. 23, no 1, 410-418 p.
Keyword [en]
filters, frequency-component estimation, recursive least square (RLS), subsynchronous resonance (SSR), torsional oscillations
URN: urn:nbn:se:kth:diva-17263DOI: 10.1109/tpwrd.2007.905557ISI: 000252059100050OAI: diva2:335306
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Ängquist, Lennart
By organisation
Electrical Machines and Power Electronics
In the same journal
IEEE Transactions on Power Delivery

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 87 hits
ReferencesLink to record
Permanent link

Direct link