1. JEJU–HAENAM HVDC MANUAL, GEC Alstom, 1993.
2. Guide for planning DC links terminating at AC system locations having low short-circuit capacities, CIGRE working Group Report, June, 1992.
3. Ainsworth JD. Developments in the phase locked oscillator control system for HVDC and other large converters, GEC Report, 1970.
4. PSCAD/EMTDC Manual, Manitoba HVDC Research Center, 1994.
5. Power system stability and control;Kunder,1996