Subsynchronous resonance in meshed networks with HVDC lines

Author

Adrees, A. ; Milanovic, J.V.

Author_Institution

Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK

fYear

2011

fDate

5-7 Dec. 2011

Firstpage

1

Lastpage

8

Abstract

This paper presents a comparison of torsional torques in the shafts of multi stage steam turbines in meshed AC networks, as well as, in networks that employ HVDC lines in parallel to existing AC transmission corridors. A full multi stage turbine model, a four machine meshed AC system and a HVDC system have been developed in DigSilent. The mechanical parameters of turbine-generator shaft system are modeled using probability density functions in order to assess more realistically the risk of rise of sub synchronous resonance (SSR) in meshed networks with HVDC lines.

Keywords

HVDC power transmission; shafts; steam turbines; subsynchronous resonance; torque; AC transmission corridors; DigSilent; HVDC lines; mechanical parameters; meshed AC networks; multistage steam turbines; probability density functions; subsynchronous resonance; torsional torques; turbine-generator shaft system; Damping; Generators; HVDC transmission; Shafts; Torque; Turbines; Uncertainty; HVDC; SSR; Torsional Frequencies; uncertainties in mechanical parameters;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Smart Grid Technologies (ISGT Europe), 2011 2nd IEEE PES International Conference and Exhibition on

Conference_Location

Manchester

ISSN

2165-4816

Print_ISBN

978-1-4577-1422-1

Electronic_ISBN

2165-4816

Type

conf

DOI

10.1109/ISGTEurope.2011.6162756

Filename

6162756