Realize the Digital Redesign of Fuzzy PWM Control in FPGA Hardware

• Main Authors: Rong-Ting Hung, 洪榮廷
• Other Authors: Cheng-Shion Shieh
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/16706687446577803467

碩士 === 遠東科技大學 === 機電光系統研究所 === 98 === The thesis proposes a new method to adjust the pulse width of PWM (Pulse Width Modulation) used in digital redesign and to realize fuzzy controllers in the FPGA (Field Programmable Gate Array). Following steps are the specific simulation and hardware implementation: 1. Use Fuzzy Logic to design a hybrid system controller to adjust the pulse width of PWM. 2. Design a PWM generator whose output can be switched to positive, negative and zero states. 3. Use GA (Genetic Algorithm) to adjust parameters of membership function in fuzzy controller and to switch positive-negative and zero-output parameters of the PWM generator. 4. Simulate and compare the output response of hybrid system with that of analog system in MATLAB/Simulink. 5. Rewrite fuzzy logic control algorithm with DSP Builder and download it into hardware FPGA. After above mentioned steps are completed, we will use a computer as a simulation plant and utilize the hardware FPGA controller to implement the fuzzy logic control algorithm of completed simulation. This will validate the proposed benefit and feasibility of the method of adjusting pulse width in performance of digital redesign.