High Accuracy Multi-Channel SPWM Generator Based on Digital Natural Sampling

Abstract:

Principle of triangle carrier amplitude modulation is equivalent with sinusoidal modulator amplitude modulation, and principle of sinusoidal modulator phase-shifting is equivalent with the triangle carrier phase-shifting are proposed. A digital natural sampling based on multi-channel SPWM generator is developed using time-division multiplexed access (TDMA). Flip time computation by CPU is no needed in the generator which has an accuracy flip time. Design principle and implementation based on FPGA are introduced, and testing results are presented.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 7430-7435
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.7430
• Online since: January 2012
• Authors: Xiang Zhong Wang, Jun Jie Zhu, Xu Feng, Cheng Chen
• Keywords: Field-Programmable Gate Array (FPGA), Natural Sampling, SPWM, TDMA

References

[1] Z. L. Chen, H. F. Mao, etc. A Study on Theory and Application of Digital Natural Sampling Based SPWM[J]. Proceedings of the Chinese Society for Electrical Engineering, Vol. 25. No. 1, 2005, pp.32-37.

[2] H. F. Mao, Z. L. Chen, etc. Theory and Pulse Error Study of Digital Natural Sampling based SPWM[J]. Proceedings of the Chinese Society for Electrical Engineering , Vol. 26. No. 9, 2006, pp.131-136.

[3] J. L. Li and L. Q. Wang. Multi-PWM Pulse Generator Based FPGA[J], Proceedings of the Chinese Society for Electrical Engineering, Vol. 25. No. 10, 2005, pp.55-59.

[4] Donld Grahame Holmes, Brendan P, McGrath. Opportunities for harmonic cancellation with carrier-based pwm for two-level and multilevel cascaded inverters[J]. IEEE Transactions on Industry Applications, Vol. 37. No. 2, 2001, pp.574-582.

DOI: 10.1109/28.913724

[5] Y. Li, G. L. Wu, J. H. Liu, J. Y. Lu. Application of CPLD in the Generate of SPWM[J]. Power Electronics, Vol. 36. No. 2, 2002, pp.69-71.

[6] C. Y. Lai. The Application of FPGA to PWM Generator High Voltage Inverter Control System[J]. Dongfang Electric Review, Vol. 21. No. 1, 2007, pp.57-60.

[7] Q. Y. Huang, J. M. Gan. The Design and Realization of 3φ SPWM Generator Based on CPLD/FPGA[J]. Journal of Wuzhou University, Vol. 18. No. 3, 2008, pp.36-41.

[8] J. H. Li, J. M. Gan. Study on Digital Natural Sampling SPWM Generator Based on FPGA[D]. A Dissertation for the Degree of Master Eng, Northeast Dianli University: March (2006).

[9] H. F. Mao, Z. L. Chen, J. Shi. Research on SPWM Waveform Formation Based on Digital Nature Sampling[J]. Power Electronics, Vol. 37. No. 6, 2003, pp.76-85.

[10] J. Zhu, J. M Dong. FPGA-Implemented Design of Phase-Shift SPWM Control Based on Direct Digital Frequency Synthesis(DDS)[J]. Control & Automation, Vol. 22. No. 10, 2006, pp.74-76.

[11] Y. Gao, N. M. Yu, L. J. Chen. Design and Implementation of a Novel Chip for Full Digital Three-Phase SPWM Signal Generation[J]. Chinese Journal of Semiconductors, Vol. 27. No. 1, 2006, pp.126-131.

[12] Z. H. Liang, D. Xiao, X. Yang. CPLD-Based Method for Producing SPWM Control Waveforms[J]. Journal of Shenyang University of Technology, Vol. 27. No. 2, 2005, pp.187-204.