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Case study of a Multi-Infeed HVDC system
KTH, School of Electrical Engineering (EES), Electrical Machines and Power Electronics (closed 20110930).
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2008 (English)Conference paper (Refereed)
Abstract [en]

There are serious concerns relating to a Multi- Infeed HIVDC system when feeding a weak AC network. Typical issues concerning multi-infeed configurations are: need for coordination of the recovery control, need for different DC modulation strategies to stabilize the system, possibility of voltage instability of the area receiving large amount of power from multiple HVDC links and the risk of mutual commutation failures. In contrast, if the area receiving electrical power from multiple HVDC transmission links is relatively strong due to the presence of large amount of generation units nearby there are still some questions that need to be investigated such as the issues underlining the operation of such a multi-infeed system, the proper design of the controls of the HVDC systems and the system dynamic performance under extreme contingencies. This paper investigates into an example of such a multi-infeed HVDC system. The authors have performed small signal analysis of the system to assess instability associated with the control modes. Electromechanical and voltage stability analysis were performed for harmful contingencies. Dynamic performance analysis was also carried out to analyze the interaction amongst various HVDC inverters during disturbances.

Place, publisher, year, edition, pages
, 2008 Joint International Conference on Power System Technology POWERCON and IEEE Power India Conference, POWERCON 2008
Keyword [en]
Control, Dynamic performance, HIVDC transmission, Multi-infeed, Simulation, Stability, Dynamic analysis, Electric power transmission networks, Power transmission, Signal analysis, System stability, Ac networks, Commutation failures, Control modes, DC modulations, Dynamic performance analysis, Electrical power, Extreme contingencies, Generation units, Hvdc links, Hvdc systems, Hvdc transmissions, Multi-infeed HVDC systems, Proper designs, Recovery controls, Small-signal analysis, System dynamic performance, Voltage instabilities, Voltage stability analysis, HVDC power transmission
National Category
Computer Science Energy Engineering
URN: urn:nbn:se:kth:diva-154092DOI: 10.1109/ICPST.2008.4745240ISI: 000268912800017ScopusID: 2-s2.0-62949219269ISBN: 9781424417629OAI: diva2:760105
2008 Joint International Conference on Power System Technology POWERCON and IEEE Power India Conference, POWERCON 2008; New Delhi; India; 12 October 2008 through 15 October 2008

QC 20141103

Available from: 2014-11-03 Created: 2014-10-14 Last updated: 2014-11-03Bibliographically approved

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De Toledo, Paulo Fischer
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