Grid-Connected Control System for Three-Phase Bidirectional DC/AC Converter to Exploit Photovoltaic Power Generation
American Journal of Engineering and Technology Management
Volume 2, Issue 6, December 2017, Pages: 98-107
Received: Nov. 17, 2017;
Accepted: Nov. 27, 2017;
Published: Dec. 20, 2017
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Le Tien Phong, Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen, Viet Nam
Do Trung Hai, Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen, Viet Nam
A grid-connetected control system is proposed in this paper to regulate three-phase bidirectional DC/AC converters in distribution grid exploiting photovoltaic power generation and not having energy storage at the DC side. To interact power flow at two its sides, statbilize voltage at the DCbus and synchronize with the grid, it includes an inner current controller and an outer voltage controller in a cascaded structure. Using small signal modeling and information about voltage at the point of common coupling and DCbus, control parameters for controllers are determined to balance power between photovoltaic system side and grid side. Simulation results show that the grid-connected control system helps the three-phase bidirectional DC/AC converter meet all requirements very well due to the balance of power at its sides to hold voltage at DC side at a fixed value, grid synchronization and low harmonic distortion total for current and voltage waveforms. They also represents the capability to exploit maximum available power of photovoltaic power generation under any operational condition.
Le Tien Phong,
Do Trung Hai,
Grid-Connected Control System for Three-Phase Bidirectional DC/AC Converter to Exploit Photovoltaic Power Generation, American Journal of Engineering and Technology Management.
Vol. 2, No. 6,
2017, pp. 98-107.
Antonino Riccobono, Enrico Santi (2011), “Positive Feed-Forward Control of Three-Phase Voltage Source Inverter for DC Input Bus Stabilization”, Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE.
Behrooz Bahrani, Stephan Kenzelmann, Alfred Rufer (July 2011), “Multivariable-PI-Based dq Current With Superior Axis Decoupling Capability”, IEEE Transactions on Industrial Electronics, Vol. 58, No. 7.
H. A. Pereira, A. F. Cupertino, C. A da S. G. Ribeiro and S. R. Silva (2013), “Influence of PLL in Wind Parks Harmonic Emissions”, IEEE PES Conference On Innovative Smart Grid Technologies Latin America.
Hadi Malek (2014), “Control of Grid-connected Photovoltaic Systems Using Fractional Order Operators”, A dissertation of Doctor of Philosophy, Utah State University.
Jasim Farhood Sultani (2013), “Modelling, Design and Implementation of d-q Control in Single-phase Grid-connected Inverters”, Dissertation for degree of Doctor of Philosophy, De Montfort University, Leicester, UK.
Jin-Wu Gong, Bai-Feng Chen, Pei Li, Fei Liu, Xiao-Ming Zha (2009), “Feedback Decoupling and Distortion Correction Based Reactive Compensation Control for Single-phase Inverter”, IEEE International Conference on Power Electronics and Drive Systems, Taiwan.
Le Tien Phong, Ngo Duc Minh, Nguyen Van Lien (2017), Improving Efficiency and Response of Photovoltaic Power Generation with DC-DC Buck Converter, International Journal of Engineering Research & Technology (IJERT), ISSN: 2278-0181, Vol. 6 Issue 03.
Marcelo Gradella Villalva, Thais Gama de Siqueira, Marcos Fernando Espindola, Ernesto Ruppert (2009), “Modeling and Control of a Three-phase Isolated Grid-connected Converter for Photovoltaic Application”, IEEE Power Electronics Conference, Brazil.
Md. Parvez Akter, Saad Mekhilef, Nadia Mei Lin Tan, Hirofumi Akagi (2015), “Model Predictive Control of Bidirectional AC-DC Converter for Energy Storage System”, Journal of Electrical Engineering Technology, No. 10, ISSN 2093-7423.
Mirjana Milosevic, Goran Anderson, Stevan Grabic (2006), “Decoupling Current Control and Maximum Power Point Control in Small Power Network with Photovoltaic Source”, 2006 IEEE PES Power Systems Conference an Exposition, pp 1005-1011.
Muhammad H. Rashid, “Power electronics handbook”, Academic Press, International Standard Book Number: 0-12-581650-2, 2001.
S. Lakshmi Devi, K. Sudheer (2014), “Modelling and Co-ordination Control of Hybrid Grid”, International Journal of Computer Science and Network Security, Vol. 14, No. 10.
Suzan Zeynep Eren (2008), “Modifying the Three-phase Synchronous Reference Frame Phase-locked Loop to Remove Unbalance and Harmonic Errors”, A thesis for the Degree of Master of Science, Queen’s University, Kingston, Ontario, Canada.
Tatjana Kalitjuka (2011), “Control of Voltage Source Converters for Power System Applications”, Master of Science in Electric Power Engineering, Norwegian University of Science and Technology.
Teresa Orłowska-Kowalska, Frede Blaabjerg, José Rodríguez (2014), “Advanced and Intelligent Control in Power Electronics and Drives”, Springer Publisher, Volume 531, ISBN 978-3-319-03401-0.
Yu Zhang (2011), “Small-Signal Modeling and Analysis of Parallel-Connected Power Converter Systems for Distributed Energy Resources”, Dissertation for degree of Doctor of Philosophy, University of Miami.