This paper proposes a new methodology for the optimal compliance of type-4 wind power plants in VSC-HVDC grid connection with the typical Fault-Ride-Through (FRT) requirements. Unlike the traditional chopper based solution, an improved offshore AC voltage droop FRT strategy, which is communication free and ensures robust faulted dynamic response is proposed to achieve FRT compliance. The calculation of the best parameters that enable successful FRT compliance is formulated as an optimization problem. The objective function aims at minimizing the electrical stresses imposed at the HVDC system and at the offshore wind power plants during the FRT and the post-FRT period, while simultaneously ensuring FRT compliance for the HVDC system and the wind power plants. The optimization is tackled based on an iterative procedure that combines dynamic modelling of the HVDC system and the connected offshore wind power plants, with a genetic algorithm based search process. Numerical results for a point-to-point connection that is extended to the three terminal HVDC grid connection case are demonstrated.
Original languageEnglish
Title of host publication19th Power Systems Computation Conference, PSCC 2016
Place of PublicationPiscataway, NJ
Number of pages7
ISBN (Electronic)978-88-941051-2-4
Publication statusPublished - 2016
Event19th Power Systems Computation Conference, PSCC 2016 - Genova, Italy
Duration: 20 Jun 201624 Jun 2016


Conference19th Power Systems Computation Conference, PSCC 2016

    Research areas

  • Genetic Algorithm, Optimal LVRT strategy, HVDC transmission, Grid Codes, Offshore wind power generation

ID: 4744234