PSPICE simulation of three-phase inverters by means of switching functions

Macromodels are proposed for simulating three-phase power converters for use in circuit simulation software packages. The macromodels are based on converter functions rather than actual circuit configuration, and they are suited for steady-state and large-signal transient analysis at system level. Voltage source inverters (VSIs), current source inverters (CSIs), and controlled rectifiers (CRs) are simulated as multiport networks avoiding the physical nonlinear micromodels of the power switches. The computer memory and run time required for the simulation are thereby minimized. Complete examples of VSIs, CSIs, and CRs with different pulsewidth-modulation (PWM) techniques are given to illustrate the effectiveness of the proposed models.<>