The fuzzy PID gain conditioner: algorithm, architecture and FPGAimplementation

摘要

In many control cases, we encounter the problem of tuning thecoefficients of PID controllers. The often used methods such as theZiegler-Nichols method can not guarantee to be the most effective one.This paper proposes a fuzzy PID gain conditioner algorithm (FPGA), amethod based on the fuzzy control, which tunes the PID controlleronline. We probe into the VLSI architecture of the algorithm. The FPGAprototype implementation based on this VLSI structure is also given.Finally, a virtual control system is used to test the effectiveness ofthe design. The results obtained are encouraging