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Investigation on parallel operation of two MMC-HVDC links in grid forming connected to an existing network
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| Author(s) |
Hani SAAD |
| Abstract |
The share of power electronics installations into existing ac power systems is significantly increasing due to the massive penetration of wind power plants and HVDC links. VSC-HVDC link can operate in VF-control (or grid-forming mode) when connected to a weak or islanded network to overcome the PQ-control (or grid-feeding mode) limitation. Up to now, the VF-control represents a challenge due to static and dynamic limits when several HVDC links are in parallel operation. This paper provides a dynamic performance of two HVDC links in grid forming mode connected to an islanded grid. To provide a realistic test case, the islanded grid is based on the Northern France network. AC fault and control instabilities between 2 HVDC links in VF control are analyzed in this work. These set of EMT studies provide an insight on dynamic network behavior when HVDC is operating in VF control. |
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| Filename: | 0534-epe2020-full-14085318.pdf |
| Filesize: | 306.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2021-01-18 by System |
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