Analysis of dynamic instability of output voltage in active power factor correctors

摘要

As a result of the analysis of the dynamic instability of the output voltage of a single-phase active power factor corrector with a nominal power of 5.5 kW, the control system of which is based on the controller UCC2818, which was carried out using a continuous approximate model, the values of the parameters of the voltage feedback system elements calculated according to the manufacturer's recommendations UCC2818 have been specified, which ensured the value of the dynamic instability of the output voltage is not worse than 7.5%.