Angle Measurement System Design For Two-channel Multi-pole Resolver Based On FPGA

This thesis focuses on the code control technology of the angular measurement in adual-channel multi-pole resolver based on FPGA. It starts with a brief description of somecommon coders and code control technologies. It gives a detailed account of the operatingprinciple of a dual-channel multi-pole resolver, of the advantages of the practical engineeringapplication and of the convenience of using a digital converter on the angular measurementcode control.According to the topic requirement, the paper put forward to a angle measurement codecontrol system which constructed by dual-channel resolver, digital converter and FPGA. Thesystem can sample the angular position measurement between0to360degrees, and use serialcommunication to realize absolute angle outputting.According to the design requirements, the paper details overall design scheme of thesystem and a number of main hardware circuits design modules. It also details the way toverify the functions of hardware circuits with the FPGA development platform and theexperiment results will be displayed on the digital oscilloscope. The experiment results alsoindicate that the hardware circuits satisfies the design requirements. In addition, for thesystem error, the paper carries out a specific research on the combination and error correctionof coarse and fine two channel data, which comes from the dual-channel multi-pole resolver.The system’s software is programmed by the VHDL language which is used to verify thefunction of combination and error correction. According to the results of the simulation andengineering practice, angle measurement system design for dual-channel multi-pole resolverbased on FPGAcan meet the requirements of high-speed conversion and high-precision.