Basic Boost PFC Simulink Simulation with Hysteresis Control and Power Factor Measurement

This simulation implements a basic Boost Power Factor Correction (PFC) circuit in Simulink environment with integrated power factor measurement capabilities. The control strategy employs hysteresis current control methodology, which actively regulates the switching device's ON/OFF states to maintain input current waveform synchronization with the input voltage. The simulation architecture incorporates a standard Boost converter topology where the switching device (typically an IGBT or MOSFET) is governed by a hysteresis comparator that monitors the instantaneous current error. This implementation uses Simulink's relational operators and triggered subsystems to create the hysteresis band control logic, ensuring rapid response to current deviations. The power factor measurement subsystem utilizes Simulink's trigonometric function blocks to calculate the phase relationship between voltage and current waveforms, with RMS measurement blocks providing accurate real-power and apparent-power computations. Through the hysteresis control algorithm's dynamic switching adjustments, the simulation consistently achieves power factors exceeding 99%, demonstrating excellent input current shaping capabilities. This configuration validates that in practical applications, the circuit maintains optimal power factor ranges, thereby significantly improving overall system efficiency and performance. The model includes scopes and display blocks for real-time monitoring of key parameters including input current waveform, voltage-current phase relationship, and instantaneous power factor values.