標題: Digital Control of a Bridgeless SEPIC PFC AC-DC Converter with Variable Voltage Output
作者: Ho, Kuan-Sheng
Wu, Kao-Chih
Tzou, Ying-Yu
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: Variable Voltage Output PFC;Bridgeless SEPIC;VOPFC Motor Drive;PAM/PWM
公開日期: 2015
摘要: Instead of constant dc-link voltage, this paper proposes a PAM/PWM for PMSM drive, which provides variable dc-link voltage to PWM inverter to reduce switching loss and improve system efficiency. An optimal dc-link voltage reference can be found for a specified operation speed for a centrifugal load condition. In order to realize the variable dc-link voltage, this paper implements a variable output voltage power factor correction (VOPFC) AC-DC converter for PMSM drive with bridgeless single ended primary inductor converter (SEPIC) topology. When it operates in DCM mode input current is in-phase with input voltage automatically and yields unit power factor. Therefore current control loop can be omitted and control system is simplified. Simulation and experimental results have been carried out to verify the performance of the PFC converter.
URI: http://hdl.handle.net/11536/136310
ISBN: 978-1-4799-1762-4
ISSN: 1553-572X
期刊: IECON 2015 - 41ST ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
起始頁: 2342
結束頁: 2347
顯示於類別:會議論文