Comparison and Evaluation of Anti-Windup PI Controllers

Xin-lan Li; Jong-Gyu Park; Hwi-Beom Shin

Comparison and Evaluation of Anti-Windup PI Controllers

Xin-lan Li

Jong-Gyu Park

Hwi-Beom Shin

Vol. 11, No. 1, pp. 45-50, Jan. 2011

10.6113/JPE.2011.11.1.45

Anti-windup

Integral state prediction

PI controller

Variable-speed motor drives

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Abstract

This paper proposes a method for comparing and evaluating anti-windup proportional-integral (PI) control strategies. The so-called PI plane is used and its coordinate is composed of the error and the integral state. In addition, an anti-windup PI controller with integral state prediction is proposed. The anti-windup scheme can be easily analyzed and evaluated on the PI plane in detail. Representative anti-windup methods are experimentally applied to the speed control of a vector-controlled induction motor driven by a pulse width modulated (PWM) voltage-source inverter (VSI). The experimental results compare the anti-windup PI controllers. It is empathized that the initial value of the integral state at the beginning of the linear range dominates the control performance in terms of overshoot and settling time.

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Cite this article

[IEEE Style]

X. Li, J. Park, H. Shin, "Comparison and Evaluation of Anti-Windup PI Controllers," Journal of Power Electronics, vol. 11, no. 1, pp. 45-50, 2011. DOI: 10.6113/JPE.2011.11.1.45.

[ACM Style]

Xin-lan Li, Jong-Gyu Park, and Hwi-Beom Shin. 2011. Comparison and Evaluation of Anti-Windup PI Controllers. Journal of Power Electronics, 11, 1, (2011), 45-50. DOI: 10.6113/JPE.2011.11.1.45.