In this chapter, sensitivity functions in feedback control systems are introduced to measure the closed‐loop control system performance against set‐point following, disturbance rejection and noise attenuation in the frequency domain. Current control systems are analyzed for the effects of current sensor errors and harmonics caused by the voltage source inverter used in the implementation of the control system. When velocity control, position control or DC voltage control is required in a cascade control structure, performance robustness in the outer‐loop control system is considered where a weighting function is introduced to quantify the difference between the desired closed‐loop performance and the actual closed‐loop performance. Parameter variations are also studied using Nyquist plots. A large number of experiments are conducted in this chapter to demonstrate the tuning procedures of the PI cascade control systems.


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    Title :

    Tuning PID Control Systems with Experimental Validations


    Contributors:
    Wang, Liuping (author) / Chai, Shan (author) / Yoo, Dae (author) / Gan, Lu (author) / Ng, Ki (author)


    Publication date :

    2014-12-09


    Size :

    66 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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