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Extension of Power Transmission Capacity in MMC-based HVDC Systems through Dynamic Temperature-Dependent Current Limits
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| Author(s) |
Jorge GONCALVES |
| Abstract |
This paper proposes the extension of the current control loops used in Modular Multilevel Convertersto include semiconductors junction temperature as an operational constraint. A new controller is addedto the inner current loop to modulate the current limits as a function of the temperature, providing anextension of the power transmission capacity without violating the thermal limits of thesemiconductors. A numerical method to investigate the operation of converters with temperature-dependent current limits is proposed and the stability of the controller is analyzed and validatedthrough simulations under steady and transient operations. |
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| Filename: | 0158-epe2015-full-05455664.pdf |
| Filesize: | 515.9 KB |
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| Type |
Members Only |
| Date |
Last modified 2016-06-08 by System |
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