Design of a Model-Following Controller with Stabilized Digital Inverse System in Closed Loop
Shota Inoue, Hiroki Shibasaki, Ryo Tanaka, Takahiro Murakami, and Yoshihisa Ishida
Meiji University, School of Science and Technology, Kawasaki, Japan
Abstract—In this paper, design of a model-following controller with stabilized digital inverse system in a closed loop is proposed. In this paper, the proposed inverse system is placed in front of the plant. Our model-following control system was developed using the above structure. However, when the relative degree of the transfer function for a continuous-time plant is greater than 3, the discrete-time system is often in the non-minimum phase. In addition, unstable zeros appear when the chosen sampling period is too short. To solve these problems, an auxiliary output is used in the design. We designed a closed-loop system to consider the robustness of the proposed controller. In addition, a parallel feedforward compensator is added in parallel with the plant
Index Terms—stabilized inverse system, multi-sampling rate, model-following control, parallel feedforward compensator
Cite: Shota Inoue, Hiroki Shibasaki, Ryo Tanaka, Takahiro Murakami, and Yoshihisa Ishida, "Design of a Model-Following Controller with Stabilized Digital Inverse System in Closed Loop," International Journal of Electronics and Electrical Engineering, Vol. 2, No. 2, pp. 134-137, June 2014. doi: 10.12720/ijeee.2.2.134-137
Index Terms—stabilized inverse system, multi-sampling rate, model-following control, parallel feedforward compensator
Cite: Shota Inoue, Hiroki Shibasaki, Ryo Tanaka, Takahiro Murakami, and Yoshihisa Ishida, "Design of a Model-Following Controller with Stabilized Digital Inverse System in Closed Loop," International Journal of Electronics and Electrical Engineering, Vol. 2, No. 2, pp. 134-137, June 2014. doi: 10.12720/ijeee.2.2.134-137
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