Active and reactive power control of a VSC-HVdc
2008 (English)In: Electric power systems research, ISSN 0378-7796, Vol. 78, no 10, 1756-1763 p.Article in journal (Refereed) Published
Voltage source converter-based HVdc(VSC-HVdc) systems have the ability to rapidly control the transmitted active power, and also to independently exchange reactive power with transmissions systems. Due to these characteristics, VSC-HVdcs with a suitable control scheme can offer an alternative means to enhance transient stability, to improve power oscillations damping, and to provide voltage support. In this paper, a VSC-HVdc is represented by a simple model, referred to as the injection model. Based on this model, an energy function is developed for a multi-machine power system including VSC-HVdcs. Furthermore, based on Lyapunov theory (control Lyapunov function) and small signal analysis (modal analysis), various control strategies for transient stability and damping of low-frequency power oscillations are derived.
Place, publisher, year, edition, pages
2008. Vol. 78, no 10, 1756-1763 p.
control Lyapunov functions, modal analysis, power oscillations damping, transient stability, voltage support, VSC-HVdc
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-17820DOI: 10.1016/j.epsr.2008.03.003ISI: 000259161800013ScopusID: 2-s2.0-45449091726OAI: oai:DiVA.org:kth-17820DiVA: diva2:335865
QC 201005252010-08-052010-08-052011-04-12Bibliographically approved