Test experience with multiterminal HVDC load flow and stability programs

A powerful set of load flow and stability programs for the study of HVDC systems has recently been completed. During the development of the programs, novel applications of multiterminal HVDC systems were investigated, first on a large test system and later on actual utility models. The test systems used, the HVDC systems studied, and system-related aspects of the HVDC system performance are reported.<>