PID controller debugging method, adjust proportion coefficient

full load 75% load 50%load three phase induction electric motor Y series B35
Specifications
-One year warranty 
-Within 25 days delivery 

-Life: 5-7 years 
Proportion coefficient P the adjusting range is generally is: 0.1-100. If a gain value 0.1, deviation of PID regulator output change to one over ten. If a gain synchronous generator value 100, deviation of www.facebook.com/dongfeng.motor PID regulator output changes for one hundred times. The effects of the gain is the value, the greater the proportion lamination is single phase 3 hp motor larger. When the initial setting, choose smaller, then slowly motor vehicle spare part up, until the system fluctuations enough hours, then the integral three phase induction motor price or differential ac induction motor coefficient adjustment. Excessive P values will lead to system instability, sustained oscillation; The P value is too pump parts small and will make the system slow. Appropriate value should make the ac generator system have enough but not too sensitive reaction, the sensitivity of the delay of time depends AC motor on the integration time to adjust.