【作者】 常国祥； 王成元； 郭殿林； 夏加宽； 刘岫岭；

【Author】 Chang Guoxiang,Wang Chengyuan,Guo Dianling,Xia Jiakuan,Liu Xiuling Shenyang University of Technology Shengyang 110023 Hei Longjiang institute of Science and Technology Harbin 150027

【机构】 沈阳工业大学电气工程学院； 黑龙江科技学院自动化系；

【摘要】 正弦波逆变器SPWM,一直是人们研究的热点,并取得了丰硕的成果,比如philips的HEP4752、Siemens的 SLE4520、Marconi的MA818等。这些专用集成电路很大程度地满足了人们的需求,但由于其功能固定,频率也不够高,限制了逆变器的进一步发展。FPGA具有编程方便,集成度高、频率高等优点,利用ALTERA的FPGA设计一三相正弦波SPWM控制IC,该IC不但可以方便地调频、调压、设置死区,还具有频率显示的功能,其频率可达50kHz,改变逆变器的功能,只需修改程序,无需改变系统的硬件结构。仿真与实验证明该设计具有结构灵活、易修改,输出频率高等优点。更多还原

【Abstract】 This paper presents a novel single-chip IC (integrated circuit) realization of the 3-sinusoidal PWM(SPWM) controller. The controller’s outputs,such as fundamental voltage,frequency,dead time and so on,are controlled by several input clocks’ frequency. With an EDA (electronic design automation) methodology, the control IC is implemented using only one single advanced FPGA from Altera,Inc. The output fundamental frequency can he adjusted from 0. 094 to 2kHz or more,and it can be real-time display. The SPWM switching frequency can be set 50kHz. The dead time for the IGBT is arbitrarily adjustable. The designed SPWM IC can be incorporated with a digital signal processor (DSP) to provide a simple and effective solution for high-performance AC drivers. Further more, the design can be converted into a soft IP (intellectual property) core for other purposes. Simulation and experimental results are given to verify the constructed controller.更多还原