The invention discloses a dynamic
phasor modeling method for a current converter of a high-
voltage direct-current
transmission system, which is applicable to various operating conditions and fault conditions. The method comprises: calculating the actual trigger angle, the actual
phase conversion angle and the actual
delay flow angle of various converter valves in the current converter according to first dynamic
phasor and direct-current zero-order dynamic
phasor of the
voltage between phases of a converter
bus; calculating the three-phase
voltage switch function and the three-phase
current switch function according to the actual trigger angle, the actual
phase conversion angle and the actual
delay flow angle of the various converter valves; and establishing a dynamic phasor model according to the three-phase voltage switch function and the three-phase
current switch function. The method can realize the establishment of the dynamic phasor model of the current converter under various operating conditions and fault conditions of AC, reduces the calculation amount, has the precision capable of meeting the requirement of
engineering application, and can be applied to
simulation analysis of dynamic characteristics of an AC
system in an AC and DC
compound system under various normal operating conditions and fault conditions.