This demonstration shows an inverter-fed, current-controlled brushless DC (BLDC) machine. A nested controller with an outer voltage loop and an inner current loop is used. The bridgeless PFC topology replaces a conventional two-stage PFC circuit, and in doing so, provides higher converter efficiency.
This demonstration shows a single-phase AC/DC bridgeless power factor correction (PFC) boost rectifier circuit. Tags: #Mechanical, #Controls, #Motor-Drives The machine is being accelerated and decelerated and is running in both motoring and generating modes. This demonstration illustrates a speed-controlled synchronous machine connected to a battery pack via a boost converter stage that precedes the active front end. Tags: #Thermal, #Controls, #Tools, #Power-Supplies A Steady-State Analysis is also setup to determine the final operating temperatures within seconds. Component loss descriptions are included to allow the thermal behavior of the MOSFET, boost diode and full bridge rectifier to be investigated. The simulation combines the electrical power circuit, the control with a standard IC and the thermal behavior of the semiconductors. The AC input voltage may vary between 85 and 265 Vrms and the controlled output voltage is 390 V DC. This demonstration shows a 300 W switched-mode power supply with a thermal model for the PFC and rectifier stages. PLECS: Boost Converter with PFC and Thermal Model Design tradeoffs, such as switching frequency vs. The user can experiment with different circuit parameters to operate the converter in either continuous conduction mode (CCM) or discontinuous conduction mode (DCM).
This demo model shows a boost converter with a resistive load operated in open loop. This demo model demonstrates PLECS Blockset specific features such as integrating a PLECS Circuit block with controls at the Simulink level, connecting multiple PLECS Circuit blocks at the Simulink level via both physical and signal wire connections, customizing the PLECS Circuit block and defining mask parameters, and including initialization commands at the Simulink level and subsystem mask level.
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