1. School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, Anhui 230009, China
2. Anhui Engineering Technology Research Center of Industrial Automation, Hefei, Anhui 230009, China
Abstract Aiming at the problem that the all-digital driving technology flow tube is difficult to start vibration, five kinds of starting methods such as analog to digital start-up, random wave start-up, sine wave start-up, sweep frequency square wave start-up, and positive-negative step alternate start-up are reviewed. Aiming at the problem that the amplitude, frequency and phase of driving signal are difficult to adjust, the solution is proposed. For the implementation platform of all-digital drive technology, two solutions are summarized: a single-core all-digital drive based on DSP and a dual-core all-digital drive based on DSP+FPGA. Among them, the single-core all-digital driving based on DSP has low cost and is easy to promote, and the dual-core all-digital driving based on DSP+FPGA has higher precision.
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2020, Vol. 41 
