Electric Motor Soft-Start Control Based on Fuzzy Theory

According to the deficiency of traditional soft-starter control accuracy caused by unsuitable initial value of PID or value shifting for disturbance of environment, a strategy of applying fuzzy PID instead of traditional PID into control process of the soft-starter is put forward in this paper. The fuzzy PID theory, soft-start theory are introduced. At last, electric motors´ soft-start, smooth running and soft-stop is realized by computer simulation, and the result shows the truth and validity of this strategy.