1. CIGRE Integration of large scale wind generation using HVDC and power electronics
2. DNV-OS-J201 Offshore substations for wind farms https://rules.dnvgl.com/docs/pdf/DNV/codes/docs/2013-11/OS-J201.pdf
3. CIGRE Voltage source converter (VSC) HVDC for power transmission: Economic aspects and comparison with other AC and DC technologies
4. CIGRE Grid integration of wind generation
5. CIGRE HVDC connection of offshore wind power plants