1. System Frequency Support Through Multi-Terminal DC (MTDC) Grids
2. CIGRE joined WG A3 and B4.34“Technical Requirements and Specifications of State of the art HVDC Switching Equipment” CIGRE brochure 683 April2017.
3. CIGRE WG B4.58“Control Methodologies for Direct Voltage and Power Flow Control in Meshed HVDC Grid” CIGRE technical brochure 699 September2017.
4. CIGRE Working Group B4.52"Feasibility of DC Grids" CIGRE brochure 533 2013.
5. LCL VSC Converter for High-Power Applications