Special purpose processor for parameter identification of CNC second order servo systems on a low-cost FPGA platform

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• 作者：Luis Morales-Velazquez ; Rene de Jesus Romero-Troncoso ; Roque Alfredo Osornio-Rios ; Gilberto Herrera-Ruiz ; J. Jesus de Santiago-Perez
• 关键词：CNC ; FPGA ; Parameter identification ; Processor architecture ; Recursive least-square
• 刊名：Mechatronics
• 出版年：2010
• 出版时间：March 2010
• 年：2010
• 卷：20
• 期：2
• 页码：265-272
• 全文大小：944 K

文摘

The parameter identification process has an important role in servo systems tuning on computer numerical control (CNC) machine tools. The parameter identification is mostly done off-line due to the high computational load carried by the identification algorithms. In this work, we present a novel hardware architecture for an application specific processor implementing the recursive least-squares algorithm for the on-line identification. The developed processor is simulated and tested with the necessary elements to perform the CNC machine servo system control. The system was implemented in a low-cost FPGA, getting a maximum sample frequency of 40 kSps.