NDLI: Control strategy without phase-locked loop based on coordinate transformation for three-phase AC/DC converter

Content Provider	IET Digital Library
Author	Zheng, Xinxin Xiao, Lan Wang, Zilong Lei, Yun Wang, Chuyang
Abstract	A novel control strategy without phase-locked loop (PLL) for the three-phase AC/DC converter is proposed in this study. There is no need to detect the phase angle of the grid and the defect of inaccurate phase-locking can be remedied. The frequency of the grid can be detected by a frequency tracking method. A linear changed angle from −π to π with the detected grid frequency is generated by the DSP controller to take part in the coordinate transformation. The grid frequency tracking method is realised by negative feedback of reactive power. It can ensure that the frequency of the linear changed angle is the same as the grid frequency. The principle of the proposed control strategy is analysed in details. Compared with the control strategy with PLL, the proposed control strategy does not need complex PLL and it can realise high power factor and low total harmonic distortion in the non-ideal grid. The structure of the proposed grid frequency tracking method is established and the parameters of it are designed. An 18 kW DSP-based bidirectional three-phase AC/DC converter is established. Simulation and experimental results verify theoretical analysis.
Starting Page	1701
Ending Page	1709
Page Count	9
ISSN	17554535
Volume Number	8
e-ISSN	17554543
Issue Number	Issue 9, Sep (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/8/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0583
Journal	IET Power Electronics
Publisher Date	2015-04-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC-DC Power Converter Control of Electric Power System Control Strategy Coordinate Transformation Digital Signal Processing Chips DSP Controller DSP-based Bidirectional Three Phase AC-DC Converter Frequency Estimation Grid Frequency Detection Grid Frequency Tracking Method Harmonic Distortion Linear Changed Angle Machine Vector Control Negative Feedback Power 18 KW Power And Energy Control Power Factor Power Grid Power System Control Power System Economics Power System Managemen Power System Operation Reactive Power Reactive Power Control Total Harmonic Distortion
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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

Isolated bidirectional DC-to-three-phase AC converter for integration of renewable energy sources to electric grid

Finite-state model predictive power control of three-phase bidirectional AC/DC converter under unbalanced grid faults with current harmonic reduction and power compensation

Novel modified phase-shift modulation strategy for isolated AC–DC power converters

Backstepping direct power control without phase-locked loop of AC/DC converter under both balanced and unbalanced grid conditions

High-efficiency three-phase bidirectional dc–ac converter for energy storage systems

Three-phase bidirectional dc/ac converter using a six-leg inverter connected to a direct ac/ac converter

Control method for improving the response of single-phase continuous conduction mode boost power factor correction converter

Single switch three-phase ac to dc converter with reduced voltage stress and current total harmonic distortion

DSP-based comparison of PFC control techniques applied on bridgeless converter

Control strategy without phase-locked loop based on coordinate transformation for three-phase AC/DC converter

Similar Documents

Isolated bidirectional DC-to-three-phase AC converter for integration of renewable energy sources to electric grid

Finite-state model predictive power control of three-phase bidirectional AC/DC converter under unbalanced grid faults with current harmonic reduction and power compensation

Novel modified phase-shift modulation strategy for isolated AC–DC power converters

Backstepping direct power control without phase-locked loop of AC/DC converter under both balanced and unbalanced grid conditions

High-efficiency three-phase bidirectional dc–ac converter for energy storage systems

Three-phase bidirectional dc/ac converter using a six-leg inverter connected to a direct ac/ac converter

Control method for improving the response of single-phase continuous conduction mode boost power factor correction converter

Single switch three-phase ac to dc converter with reduced voltage stress and current total harmonic distortion

DSP-based comparison of PFC control techniques applied on bridgeless converter

Control strategy without phase-locked loop based on coordinate transformation for three-phase AC/DC converter