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Experimental Validation of Autonomous Converter Control in a HVDC Grid
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| Author(s) |
SHENG WANG, Liang JUN, WHITEHOUSE ROBERT, BARKER CARL |
| Abstract |
Much research has been done regarding the control and coordination of VSC converters in a MultiterminalHVDC network or grid. Amongst those, one underlying concept is the most common- the DCvoltage droop control.In this paper, the control concept has been further developed to use alternative droop characteristics oneach converter. This approach allows precise converter current regulation during normal operationwhile stabilizes DC voltage during power disturbance.Control algorithms of alterative droop characteristics are provided and interactions of different controlcharacteristics are also analyzed.This concept is validated using both digital simulation (PSCAD/EMTDC) and physical modelling of aHVDC grid using a 4-terminal VSC Physical Simulator. Results obtained from the two simulationplatforms are compared and show good agreement. The feasibility and advantage of using alternativedroop characteristics on each single converter are also validated. |
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| Filename: | 0159-epe2014-full-17324778.pdf |
| Filesize: | 405.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2015-06-08 by System |
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