Multiple Switching Patterns for SHEPWM Inverters Using Differential Evolution Algorithms

An investigation on multiple patterns for both odd and even number of switching angles in a three-phase selective harmonic elimination pulse width modulation (SHEPWM) inverter is presented. The switching patterns are eand classified on the basis of the harmonic performance of the waveforms output from the inverter. Differen tial evolution algorithms are employed to calculate the optimum switching angl es. Selected cases are verified experimentally by a digital signal processorbased hardware implementation. The experimental res ults show that all types of the patterns offer low ha rmonic distortions on the inverter output after filtering. However, one tgives better harmonic performance is identified .

[1]  V. Agelidis,et al.  Multiple sets of solutions for harmonic elimination PWM bipolar waveforms: analysis and experimental verification , 2006, IEEE Transactions on Power Electronics.

[2]  B. Mellitt,et al.  Novel algorithm for generating near optimal PWM waveforms for AC traction drives , 1986 .

[3]  Toshiji Kato,et al.  Sequential homotopy-based computation of multiple solutions for selected harmonic elimination in PWM inverters , 1999 .

[4]  Vassilios G. Agelidis,et al.  On Attaining the Multiple Solutions of Selective Harmonic Elimination PWM Three-Level Waveforms Through Function Minimization , 2008, IEEE Transactions on Industrial Electronics.

[5]  V. Agelidis,et al.  On applying a minimization technique to the harmonic elimination PWM control: the bipolar waveform , 2004, IEEE Power Electronics Letters.

[6]  S. R. Bowes,et al.  Regular-sampled harmonic-elimination PWM control of inverter drives , 1995 .

[7]  H. Grotstollen,et al.  DSP-based real-time harmonic elimination of PWM inverters , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[8]  J. Sun,et al.  Optimal PWM based on real-time solution of harmonic elimination equations , 1996 .

[9]  Rainer Storn,et al.  Differential Evolution – A Simple and Efficient Heuristic for global Optimization over Continuous Spaces , 1997, J. Glob. Optim..

[10]  F. Swift,et al.  A new Walsh domain technique of harmonic elimination and voltage control in pulse-width modulated inverters , 1993 .

[11]  Woei-Luen Chen,et al.  A simple approach to the realization of an FPGA-based harmonic elimination PWM generator , 2008, 2008 18th International Conference on Electrical Machines.

[12]  P. Enjeti,et al.  Solving nonlinear equations of harmonic elimination PWM in power control , 1987 .

[13]  Rabih A. Jabr.  Solution trajectories of the harmonic-elimination problem , 2006 .

[14]  Geza Joos,et al.  Selective harmonic elimination and current/voltage control in current/voltage-source topologies: a unified approach , 2001, IEEE Trans. Ind. Electron..

[15]  Shen Wei,et al.  A flexible way to generate PWM-SHE switching patterns using genetic algorithm , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).