Current control techniques for utility interface converters with low THD

This paper discusses current control techniques for utility interface converters with low total harmonic distortion (THD), fast dynamic responses, and high stability for transient responses. A repetitive control technique with designed phase margin has been developed to reduce the THD of a single-phase boost AC/DC converter operating over a wide range of load variations. A green-mode control strategy is developed to adjust the control mode as well as the switching frequency for efficiency improvement. A predictive current loop controller is used to achieve fast dynamic response under wide input voltage variation range and a repetitive controller is designed to minimize periodic errors within the current loop bandwidth. A single-chip DSP controller is used to realize the proposed control scheme. Simulation and experimental results confirm the feasibility and performances of the proposed control scheme.

[1]  Liang Qin,et al.  Analysis and realization of a novel repetitive controller in active power filter system , 2009, 2009 International Conference on Power Electronics and Drive Systems (PEDS).

[2]  S. Hara,et al.  Repetitive control system: a new type servo system for periodic exogenous signals , 1988 .

[3]  Dragan Maksimovic,et al.  Digital Control for Improved Efficiency and Reduced Harmonic Distortion over Wide Load Range in Boost PFC Rectifiers , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[4]  J.A. Melkebeek,et al.  A Boost PFC Converter With Programmable Harmonic Resistance , 2007, IEEE Transactions on Industry Applications.

[5]  Yen-Shin Lai,et al.  A Family of Predictive Digital-Controlled PFC Under Boundary Current Mode Control , 2012, IEEE Transactions on Industrial Informatics.

[6]  Frede Blaabjerg,et al.  Proportional-Resonant Controllers. A New Breed of Controllers Suitable for Grid-Connected Voltage-Source Converters , 2004 .

[7]  Liuchen Chang,et al.  Study of advanced current control strategies for three-phase grid-connected pwm inverters for distributed generation , 2005, Proceedings of 2005 IEEE Conference on Control Applications, 2005. CCA 2005..

[8]  L. Malesani,et al.  PWM current control techniques of voltage source converters-a survey , 1993, Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics.

[9]  Fred C. Lee,et al.  Light load efficiency improvement for PFC , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[10]  F. Blaabjerg,et al.  Control of Power Converters in AC Microgrids , 2012, IEEE Transactions on Power Electronics.

[11]  M.R. Zolghadri,et al.  A novel control strategy for power factor corrections based on predictive algorithm , 2010, 2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC).

[12]  D. Maksimovic,et al.  Impact of digital control in power electronics , 2004, 2004 Proceedings of the 16th International Symposium on Power Semiconductor Devices and ICs.

[13]  Stéphane Bibian,et al.  Digital control with improved performance for boost power factor correction circuits , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[14]  F.C. Lee,et al.  Design and analysis of a hysteretic boost power factor correction circuit , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[15]  J.A. Melkebeek,et al.  Input current distortion of CCM boost PFC converters operated in DCM , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[16]  Marian P. Kazmierkowski,et al.  Current control techniques for three-phase voltage-source PWM converters: a survey , 1998, IEEE Trans. Ind. Electron..

[17]  Gerardo Escobar,et al.  A Repetitive-Based Controller for a Power Factor Precompensator , 2007, IEEE Transactions on Circuits and Systems I: Regular Papers.

[18]  M. Liserre,et al.  Evaluation of Current Controllers for Distributed Power Generation Systems , 2009, IEEE Transactions on Power Electronics.

[19]  Liuchen Chang,et al.  Improved Predictive Current Controlled PWM for Single-Phase Grid-Connected Voltage Source Inverters , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[20]  Josep M. Guerrero,et al.  Control Design Guidelines for Single-Phase Grid-Connected Photovoltaic Inverters With Damped Resonant Harmonic Compensators , 2009, IEEE Transactions on Industrial Electronics.

[21]  A. Karaarslan.  Hysterisis control of power factor correction with a new approach of sampling technique , 2008, 2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel.

[22]  Ying-Yu Tzou,et al.  Using repetitive control for THD reduction over wide load range for boost digital PFC converters , 2012, 2012 IEEE International Symposium on Industrial Electronics.

[23]  A.I. Maswood,et al.  A unity power factor front-end rectifier with hysteresis current control , 2006, IEEE Transactions on Energy Conversion.

[24]  Jose Renes Pinheiro,et al.  Comparison among digital current controllers applied to power factor correction boost converters , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[25]  W. Wonham,et al.  The internal model principle for linear multivariable regulators , 1975 .

[26]  Bin Wu,et al.  A digital power factor correction (PFC) control strategy optimized for DSP , 2004 .