Cylindrical coordinate control of three-dimensional PWM technique in three-phase four-wired trilevel inverter

In past decades, almost all the studies are focused in two-dimensional (2-D) PWM techniques on /spl alpha/-/spl beta/ frame. A four-legs inverter is proposed to compensate the three-phase four-wired system issues. However, three-legs center-split inverter can be applied to compensate the power quality issues including the zero-sequence compensation by the novel PWM technique: three-dimensional (3-D) PWM. In this paper, the mathematical model of shunt-connected three-level power inverter in three-phase four-wired system is studied in a-b-c-0 frame. The study of 3-D voltage space vector PWM technique in two-level and three-level inverters is performed in rectangular, cylindrical, and spherical coordinates, respectively. The 3DPWM performance indices are proposed. Comparative study of fixed switching sign cubical hysteresis control with this novel proposed technique "cylindrical coordinate control strategy" is accomplished. The results show that the performance of the proposed novel control strategy can overcome the drawbacks of fixed switching sign cubical hysteresis 3DPWM control strategy.

[1]  F. Casanellas,et al.  Losses in PWM inverters using IGBTs , 1994 .

[2]  J. K. Steinke,et al.  Switching frequency optimal PWM control of a three-level inverter , 1992 .

[3]  S. Halasz,et al.  Two-phase modulation technique for three-level inverter fed AC drives , 1998, MELECON '98. 9th Mediterranean Electrotechnical Conference. Proceedings (Cat. No.98CH36056).

[4]  Dushan Boroyevich,et al.  A fast space vector modulation algorithm for multilevel three-phase converters , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[5]  H. L. Liu,et al.  Optimal PWM design for high power three-level inverter through comparative studies , 1995 .

[6]  Osman Kukrer,et al.  Discrete-time current control of voltage-fed three-phase PWM inverters , 1996 .

[7]  P. Enjeti,et al.  Optimal power control strategies for neutral point clamped (NPC) inverter topology , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[8]  M.P. Kazmierkowski,et al.  Review of current regulation techniques for three-phase PWM inverters , 1994, Proceedings of IECON'94 - 20th Annual Conference of IEEE Industrial Electronics.

[9]  Bruno Velaerts,et al.  New developments of 3-level PWM strategies , 1989 .

[10]  Tokuo Ohnishi,et al.  An improved voltage vector control method for Neutral-Point-Clamped inverters , 1994 .

[11]  T. Suzuki,et al.  An improved voltage vector control method for Neutral-Point-Clamped inverters , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[12]  Hirofumi Akagi,et al.  Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components , 1984, IEEE Transactions on Industry Applications.

[13]  Leon M. Tolbert,et al.  Multilevel PWM methods at low modulation indices , 1999, APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285).

[14]  A. Trzynadlowski,et al.  An overview of modern PWM techniques for three-phase, voltage-controlled, voltage-source inverters , 1996, Proceedings of IEEE International Symposium on Industrial Electronics.

[15]  Joachim Holtz.  Pulsewidth modulation-a survey , 1992, IEEE Trans. Ind. Electron..

[16]  A. Dastfan,et al.  Control of a new active power filter using 3-D vector control , 2000 .

[17]  D. J. Adams,et al.  Harmonic and reactive power compensation based on the generalized instantaneous reactive power theory for three-phase four-wire systems , 1998 .

[18]  Man-Chung Wong,et al.  Three-dimensional pulse-width modulation technique in three-level power inverters for three-phase four-wired system , 2001 .

[19]  Mauricio Aredes,et al.  Three-phase four-wire shunt active filter control strategies , 1997 .

[20]  Leon M. Tolbert,et al.  Multilevel PWM methods at low modulation indices , 2000 .