NDLI: Automatic resonant frequency tracking in unregulated LLC resonant converters based on total resonant current harmonic calculation

Content Provider	IEEE Xplore Digital Library
Author	Siyao Jiang Weimin Zhang Bo Liu Wang, F.
Copyright Year	2013
Description	Author affiliation: Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China (Siyao Jiang) \|\| Dept. of Electr. Eng. & Comput. Sci., Univ. of Tennessee, Knoxville, TN, USA (Weimin Zhang; Bo Liu; Wang, F.)
Abstract	The desired working condition for the unregulated LLC resonant converter is to have the switching frequency equal to the resonant frequency in order to achieve higher efficiency. However, since the converter works in open-loop condition, the switching frequency usually deviates from the resonant frequency in real converter prototype. In this paper, a novel switching frequency control scheme to track the resonant frequency is proposed. Theoretically, the primary side current of LLC resonant converter is a pure sinusoidal waveform when it works at resonant frequency. The proposed control algorithm is based on tracking the minimum value of the total resonant current harmonic to realize the switching frequency tracking the resonant frequency. A closed-loop digital controller is presented to calculate the total resonant current harmonic to estimate the shape of the waveform. The switching frequency can be well controlled to track the resonant frequency. As a result, the higher efficiency can be achieved.
Starting Page	4193
Ending Page	4198
File Size	932513
Page Count	6
File Format	PDF
ISBN	9781479903368
DOI	10.1109/ECCE.2013.6647259
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switching frequency Resonant frequency Pulse width modulation Harmonic analysis Control systems Synchronization Field programmable gate arrays
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

FPGA-based combined PWM-PFM technique to control DC-DC converters

A FPGA based Variable switching frequency Multi-carrier Pulse width modulation for Three phase Multilevel Inverter

Emulated current mode control system for DC-DC boost converter using FPGA

FPGA-based digital current mode controller for phase-shifted full-bridge PWM converter

Simplified analysis of the three-phase PWM switching converter

PWM-based control of a cascaded three-phase multilevel inverter

Random switching frequency in a synchronous-asynchronous digital voltage-mode control for dc-dc converters

Active harmonic elimination in multilevel converters using FPGA control

Review on different control strategies of LLC series resonant converters

Automatic resonant frequency tracking in unregulated LLC resonant converters based on total resonant current harmonic calculation

Similar Documents

FPGA-based combined PWM-PFM technique to control DC-DC converters

A FPGA based Variable switching frequency Multi-carrier Pulse width modulation for Three phase Multilevel Inverter

Emulated current mode control system for DC-DC boost converter using FPGA

FPGA-based digital current mode controller for phase-shifted full-bridge PWM converter

Simplified analysis of the three-phase PWM switching converter

PWM-based control of a cascaded three-phase multilevel inverter

Random switching frequency in a synchronous-asynchronous digital voltage-mode control for dc-dc converters

Active harmonic elimination in multilevel converters using FPGA control

Review on different control strategies of LLC series resonant converters

Automatic resonant frequency tracking in unregulated LLC resonant converters based on total resonant current harmonic calculation