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| Study of Applying Three-Level PWM Strategy on Single-DSP Architecture |
| Cai Kai1, Cheng Shanmei1, Li Zicheng2 |
| 1. Huazhong University of Science and Technology Wuhan 430074 China 2. Wuhan Institute of Technology Wuhan 430073 China |
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Abstract Multi-level converters are provided with extremely lower dV/dt, very low harmonic distortion, and low device’s voltage stress. As one of multi-level converters with general applications, three-level converter usually works in the "DSP+CPLD" hardware architecture, in which DSP completes the three-level algorithm, and CPLD implements the PWM extension task. A novel three level scheme with only one single DSP is put forward based on analysing on algorithm modularity and hardware properties. Results of experiments on two types of hardware platform testify the feasibility of this scheme, and it exhibits good characters of high compact structure, dependability, as well as low cost.
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Received: 11 June 2008
Published: 17 February 2014
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[1] Nabae A, Takahashi I, Akagi H. A new neutral- clamped PWM inverter[C]. IEEE IAS Annual Meetings, 1980:761-766.
[2] Rodriguez J, Jih-Sheng L, Peng F. Multilevel inverters: a survey of topologies, controls, and applications[J]. IEEE Transactions on Industrial Electronics, 2002, 49(4): 724-738.
[3] 李永东. 高性能大容量交流电机调速技术的现状及展望[J]. 电工技术学报, 2005, 20(2): 1-10.
[4] Wu B. High-power converters and AC drives[M]. 2nd ed. Hoboken N J: Wiley-IEEE Press, 2006.
[5] 李永东, 高跃. 多电平PWM控制技术发展[J]. 变频器世界, 2006(3): 6-16.
[6] Pan Z. Multilevel back-to-back converters: topologies and control strategies[D]. Lansing: Michigan State University, 2005.
[7] 白志红, 张仲超. 单相电流型多电平逆变器组合拓扑及其SPWM调制策略研究[J]. 电工技术学报, 2007, 22(11): 80-84.
[8] 绳伟辉, 李崇坚, 朱春毅, 等. 大功率IGCT三电平变流器空间矢量PWM调制算法[J]. 电工技术学报, 2007, 22(8): 1-6.
[9] 谭聪. 三电平逆变器空间电压矢量PWM调制及实现[D] . 合肥:合肥工业大学, 2006.
[10] Figoli D. A software modularity strategy for digital control systems[J/OL]. http://focus.ti.com.cn/cn/lit/ an/spra701. |
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2009, Vol. 24 
