In this paper, a two-stage AC-AC power supply is designed to specifically handle the operation and performance improvements of the power system with highly inductive loads. The proposed power supply scheme includes an input interleaved power factor correction (PFC) stage to improve the input power factor (PF) and regulate the DC bus voltage required for the second stage, which is a voltage source inverter (VSI) with an output low pass filter to adjust the load harmonics contents and regulate the load voltage and frequency to the specified AC load values. The small-signal models of the PFC and VSI stages are obtained, and optimal voltage and current control loops for both stages are designed based on the obtained models to improve the required system power performance and stability. PSIM simulation is used to examine the performance of the proposed power supply under various input-output operation conditions. This work achieves a 500VA, (180-260)V RMS Power supply with an input PF of 99%, better output voltage regulation, and a lower THD value for the purpose of supplying industrial inductive loads.
Research Member
Research Department
Research Date
Research Year
2022
Research Journal
The Transactions of The Korean Institute of Electrical Engineers
Research Publisher
The Korean Institute of Electrical Engineers
Research Vol
71
Research_Pages
10.5370/KIEE.2022.71.4.632
Research File
Research Website
https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE11053382&language=ko_KR&hasTopBanner=true
Research Abstract
Research Rank
International Journal