Abstract
Three methods are investigated for the tracking problem of the famous cart–pole system (a kind of planar inverted pendulum). The output is required to track a sinusoid signal. Control design is based on the linearized model. First, we show that using output error and states feedback, approximate tracking can be achieved with bounded tracking error. Then exact tracking via output regulation is investigated. By constructing a regulator equation, the equivalent input and equivalent states which are needed to maintain output at the reference trajectory can be calculated. We show that the tracking problem is equivalent to the stabilizing problem in the states error coordinate. Finally, we study exact tracking via stable system center method. Because of the nonminimum phase property, a bounded solution for the internal dynamics is required and is estimated by stable system center method. Then the tracking problem can also be transformed into a stabilizing problem. Simulations are made for each method.
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This work is supported by NSFC under Grant No. 61273092.
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© 2016 Springer Science+Business Media Singapore
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Ye, L., Zong, Q., Zhang, X., Wang, D., Dong, Q. (2016). Tracking Control of a Nonminimum Phase Inverted Pendulum. In: Jia, Y., Du, J., Zhang, W., Li, H. (eds) Proceedings of 2016 Chinese Intelligent Systems Conference. CISC 2016. Lecture Notes in Electrical Engineering, vol 405. Springer, Singapore. https://doi.org/10.1007/978-981-10-2335-4_32
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DOI: https://doi.org/10.1007/978-981-10-2335-4_32
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