Construction and Model Analysis of Boost Boost Circuit Based on Fuzzy and Cascaded PI Dual Control

With the establishment of the goal of “double carbon” and “double high”, it is crucial to establish a safe and stable new power system, and power electronic converters play an important role in this process, which can effectively improve the reliability and safety of the power grid. Therefore, this paper considers the problem of slow dynamic response speed in the traditional PI cascade control strategy for the step-up rectifier control circuit, builds a model to apply fuzzy control to the PFC circuit, and discusses the optimization of the dynamic response speed of the system under the fuzzy control strategy. The PFC circuit is constructed under the traditional PI cascade control strategy, its voltage, and current waveforms are observed, and its dynamic response speed and oscillation are simulated. The fuzzy control is applied to the PFC circuit and repeated experiments are conducted; finally, the two are compared and it is concluded that the fuzzy control strategy can effectively improve the dynamic response speed of the system and improve the voltage oscillation problem, which is of great significance to the safe and stable operation of the power system.