Optimal converter control mode selection for secure offshore HVDC grid operation
In: IEEE PES Innovative Smart Grid Technologies Conference Europe. IEEE: New York. ISSN 2165-4816; e-ISSN 2165-4816, more
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| Author keywords |
Optimal power flow;security-constrained optimal power flow;meshed HVDC grids;offshore grids;optimal power-flow |
| Authors | | Top |
- Damanik, O.
- Ergun, H., more
- Van Hertem, D., more
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| Abstract |
This paper addresses the incorporation of DC-side converter control modes into a corrective security-constrained optimal power flow (SCOPF) problem for meshed offshore HVDC grids. Two control modes, namely DC power-voltage droop and constant DC power modes, are considered in the SCOPF model. The participation of the offshore wind farms and the onshore grids in balancing the DC grid are determined by their respective converter control modes. The main objective of the paper is to demonstrate the importance of selecting different sets of converter modes in a meshed offshore HVDC grid setup. The different choices are evaluated by assessing their techno-economic performances through the operational decision outcomes such as the onshore and offshore generation setpoints, which are influenced by the converter control mode selections. The assessment is performed using a modified CIGRE B4 DC grid test system representing a meshed offshore HVDC grid connecting multiple AC systems. The results show the significance of selecting appropriate DC-side converter modes for cost-effective and secure operation of offshore HVDC grids. |
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