Volume 8 Number 4 (Apr. 2013)
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JCP 2013 Vol.8(4): 896-903 ISSN: 1796-203X
doi: 10.4304/jcp.8.4.896-903

Research on Real-time Simulation and Control of Linear 1-stage Inverted Pendulum

Zheying Song1, Xueling Song1, Chaoying Liu2, and Yingbao Zhao1
1 College of Electrical Engineering & Informational Science, Hebei University of Science of Technology, Shijiazhuang, 050054
2 Polytechnic College of Hebei University of Science & Technology , Shijiazhuang,050054


Abstract—Inverted pendulum system is a complex, unstable and nonlinear system. In order to make it become an adaptive and robust stable system in control strategy, the mathematical model of linear l-stage inverted pendulum has been established by means of Newton mechanics. The control strategies including classic control methods and modern control methods, such as the PID control algorithm, the pole assignment algorithm and the T-S fuzzy control algorithm.The real-time control results show that the PID control algorithm and the pole assignment algorithm based on the dynamic model have different qualities and characteristic. The structure of PID control is smiple, but the PID controller parameters is more difficult to select, and the overshoot of the system is easy to be increase because of the system strong instability. In addition, the traditional PID control algorithm can only control the pendulum’s angle, and can’t control displacement. Pole placement method has the better robustness and transient characteristics, but it mainly relies on the experience of engineers to select the desired pole, so it does not have the convenience and simplicity of the PID. The T-S fuzzy controller doesn’t need to build an accurate mathematical model of the object, the nonlinear system can be fuzzified into local linera model based on the empirical knowledge. The T-S fuzzy controller reduce the dimension of fuzzy controller and simplify the rules. The real-time control results analysis shows the pendulum and cart position can quickly be stabilized with strong robustness. In real-time control of the inverted pendulum system, car position, car speed and the pendulum angle and angular velocity, etc not only to be considered, but also the state variables, measurement accuracy and sensitivity of the sensor have to consider. So there are a lot of work to do in the real-time control of inverted pendulum system.

Index Terms—single inverted pendulum, PID, pole placement method, T-S fuzzy model

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Cite: Zheying Song, Xueling Song, Chaoying Liu, and Yingbao Zhao, " Research on Real-time Simulation and Control of Linear 1-stage Inverted Pendulum," Journal of Computers vol. 8, no. 4, pp. 896-903, 2013.

General Information

ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO,  ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, CNKI,etc
E-mail: jcp@iap.org
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