Advanced phase shift control of capacitor supported dynamic voltage restorer

Control is a key issue for the performance and compensation characteristic of dynamic voltage restorer (DVR). After detailed analysis of the conventional phase shift control for DVR, this paper discovered a potential fatal problem of this control. Then, an advanced control method is proposed from the viewpoint of active power balance. After the theoretical analysis and digital implementation, further study on the static, dynamic compensation performance and the system stability issue are also presented. Simulation and experimental results are presented to verify the validity of the proposed control method and the performance of the DVR.

[1]  San Shing Choi,et al.  Dynamic voltage restoration with minimum energy injection , 2000, 2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077).

[2]  D.M. Vilathgamuwa,et al.  Interline dynamic voltage restorer: a novel and economical approach for multi-line power quality compensation , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[3]  San Shing Choi,et al.  Performance improvement of the dynamic voltage restorer with closed-loop load voltage and current-mode control , 2002 .

[4]  S. S. Choi,et al.  A new control strategy for energy-saving dynamic voltage restoration , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[5]  Zhaoan Wang,et al.  A Research on the Application of Phase Shift Control for Active Voltage Quality Regulator , 2007, 2007 IEEE Power Electronics Specialists Conference.

[6]  John Godsk Nielsen,et al.  Control strategies for dynamic voltage restorer compensating voltage sags with phase jump , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[7]  Seung-Ki Sul,et al.  Compensation voltage control in dynamic voltage restorers by use of feed forward and state feedback scheme , 2005, IEEE Transactions on Power Electronics.

[8]  Frede Blaabjerg,et al.  Design and comparison of high performance stationary-frame controllers for DVR implementation , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[9]  San Shing Choi,et al.  Dynamic voltage restoration with minimum energy injection , 2000 .

[10]  A. Elnady,et al.  Mitigation of voltage disturbances using adaptive perceptron-based control algorithm , 2005, IEEE Transactions on Power Delivery.

[11]  F. Blaabjerg,et al.  A detailed comparison of system topologies for dynamic voltage restorers , 2005, IEEE Transactions on Industry Applications.