VSC-HVDC transmission functions under short-circuit conditions in AC power system

The paper considers forcing states of a VSC-HVDC under short-circuit conditions in power system. The capability of power system node voltages restoration was shown. Design of a VSC-HVDC control system is defined by the power system topology and the results of short-circuit calculations. While designing and commissioning VSC-HVDC control system for managing different types of short-circuit conditions there are transmission reaction data in prolonged short-circuit states that is needed consideration at the first place. Control strategy of VSC-HVDC under short-circuit conditions ought to be based at the power system data signals at converter terminals, and that is why it needs to be centralized. There are some uncertainties in configuring universal VSC-HVDC control system in accordance to optimal management of a VSC-HVDC under short-circuit conditions, that results in designing not only centralized but an adaptive control system.