研究者業績

佐藤 孝雄

サトウ タカオ  (Takao Sato)

基本情報

所属
兵庫県立大学 大学院 工学研究科 機械工学専攻 教授
学位
博士(工学)(2002年3月 岡山大学)

ORCID ID
 https://orcid.org/0000-0003-0590-3594
researchmap会員ID
5000022439

外部リンク

主要な委員歴

 179

論文

 238

主要な書籍等出版物

 12

主要な講演・口頭発表等

 262
  • 西野智香, 川口夏樹, 小橋昌司, 室谷樹一郎, 木村雄一, 水庫 功, 森 寿仁, 内田勇人, 佐藤孝雄
    電気学会研究会資料 制御研究会 2023年4月 電気学会
  • Saeri Suda, Yuta Sakai, Natsuki Kawaguchi, Takao Sato
    SICE Annual Conference 2022 2022年9月
  • Natsuki Kawaguchi, Nozomu Araki, Takao Sato, Masaharu Kuroda
    SICE Annual Conference 2022 2022年9月
  • Takao Sato, Tomonori Yao, Natsuki Kawaguchi
    IFAC Symposium on Advances in Control Education 2022 2022年7月
  • J.L. Guzmán, K. Zakova, I. Craig, T. Hagglund, D. Rivera, J.E. Normey-Rico, P. Moura-Oliveira, L. Wang, A. Serezov, T. Sato, M. Beschi
    IFAC Symposium on Advances in Control Education 2022 2022年7月
  • Takao Sato, Yuta Sakai, Natsuki Kawaguchi
    IFAC Workshop on Adaptive and Learning Control Systems 2022年6月
  • Takao Sato, Shinpei Ogawa, Natsuki Kawaguchi
    Asian Control Conference 2022 2022年5月
  • 川口夏樹, 東手 悠太, 佐藤孝雄, 高木太郎, 水本郁朗
    電気学会論文誌C 2022年3月
  • Akira Inoue, Mingcong Deng, Takao Sato, Akira Yanou
    International Conference on Advanced Mechatronic Systems, ICAMechS 2021年12月
    This paper proposes an extended controller for generalized minimum variance control (GMVC) based on a full-order observer which has the equivalence to a controller by the polynomial approach. Although it has been proved that the controller using the reduced-order observer has the equivalence, it is difficult for the controller to be extended to Youla-Kucela generalized stabilizing controller. On the other hand, the controller using the full-order observer can be easily extended. Hence, the authors have already proposed a modified full-order observer so that the controller using the modified observer could be easily extended and has the equivalence with the controller by the polynomial approach. This paper extends the controller using the modified full-order observer to the generalized stabilizing controller and proves the equibalance to the extended controller by the polynomial approach mathematically. The equivalence gives the controller of polynomial approach to have the strong points of state-space based design. That is, the observer-based controller has a simple structure, which is state-feedback plus state estimator observer and it is easy to design the closed-loop poles. A numerical simulation is given to show the effectiveness of the proposed controller.
  • Ryo Kurokawa, Natsuki Kawaguchi, Takao Sato, Ramon Vilanova
    15th International Conference on Innovative Computing, Information and Control 2021年9月
  • E.A. Cortes-Gutierrez, Orlando Arrieta, Ramon Vilanova, Takao Sato, Jose David Rojas
    26rd IEEE International Conference on Emerging Technologies and Factory Automation 2021年9月
    Cascade control structures are widely implemented in industries, due to the fact that they increase the performance of single-loop control. Nevertheless, their implementation requires a higher initial investment. Because of this, it is of great importance to be able to quantify their relative performance improvement. Very few studies handle this subject, and they do not obtain results which directly establish this quantification on a general basis. Therefore, the objective of this project is to conduct a study with help of computational tools, in order to determine the relative performance improvement of a cascade control structure with respect to a single-loop structure, for setpoint tracking and disturbance rejection. An overdamped second-order-plus-dead-time process, separable in two first-order-plus-dead-time subprocesses, was considered. The controllers were implemented using a PID algorithm. Simulations were conducted to obtain the ratio of the IAE performance indexes of each control structure, as a function of the time constant ratio, for different process parameters. The controllers were tuned by means of optimization routines, in order to guarantee that they provided the best IAE index. Finally, two general equations were obtained, which quantify the relative performance improvement of a cascade control structure with respect to a single-loop structure, as a function of the process parameters, for set point tracking and disturbance rejection.
  • Yuta Sakai, Natsuki Kawaguchi, Takao Sato
    SICE Annual Conference 2021 2021年9月
  • Yugo Tokura, Takao Sato, Ryota Yasui, Natsuki Kawaguchi, Nozomu Araki, Yasuo Konishi
    Proceedings of International Conference on Artificial Life and Robotics 2020年1月
    The aim of the present study is to improve the understanding of the control engineering for university students through the experience of the control experiment, and hence an experimental device is developed. The students are educated using the device, and the educational effect is evaluated. In the present study, the students take examinations for the control engineering before and after the experiment, and the effect is evaluated objectively.
  • Akira Inoue, Mingcong Deng, Takao Sato, Akira Yanou, Tomohiro Henmi
    2019 58th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2019 2019年9月
    This paper proposes a model predictive controller for multivariable systems with time-delays. The design method is derived by the following way, first to consider a design for single input single output(SISO) systems and to modify the control problem for the SISO systems with no time-delays by shifting the outputs with time-delay steps and a design method with no time-delays is applied to the modified systems. Then the SISO case is extended to multi-input multi-output(MIMO) case by replacing time-delay steps in SISO case with an interactor matrix of MIMO plants.
  • Takumi Furusaka, Natsuki Kawaguchi, Takao Sato, Nozomu Araki, Yasuo Konishi
    IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2019年9月
    Multi-agent systems (MASs) are used for distributed control purposes and substantial research attention has been directed to these systems because of their practical merits. In MASs, agents' information is shared through networks. In networked-control systems, the measured data is usually quantized because of sensor performance or specification, and its resolution is inadequate. Furthermore, because of network quality, the measurement interval is often longer than the control interval. Therefore, the present study introduces a design method for a dual-rate quantized control system, in which the measurement interval of agents is an integer multiple of the control interval.
  • Akira Inoue, Takao Sato, Mingcong Deng, Akira Yanou
    Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018 2019年1月
    This paper gives an optimal control law to eliminate ripples in inter-sample intervals of transient state of multi-rate sampled-control systems. As for ripples in steady state, there already exist several methods to remove the ripples. But to reduce the ripples in transient-state, so far there exists only trial and error method and there does not exist a systematic method. In this paper, first a reference model is defined which generates a reference output with no ripples and at sampled points, it has the same outputs with continuous time multi-rate control systems. Then the ripples in transient state are measured by the integrals of squared output errors. And equations to calculate the integrals are given by solving of Lyapunov equations. Finally the optimal control law is derived by differentiating the equations by the control input. The obtained optimal control input has a state feedback form and can be calculated at the short sampling time.
  • Takumi Furusaka, Takao Sato, Nozomu Araki, Yasuo Konishi
    International Conference on Control, Automation and Systems 2018年12月
    This study proposes a new design method for the consensus control of multi-agent systems with quantized signal communication. When the static quantizer used, the performance of the consensus control is deteriorated depending on the quantizing level. In a conventional method, the quantization is implemented the probability function. On the other hand, in the proposed method, the dynamic quantizer is introduced, and it is optimally designed. As a result, the consensus control performance is improved. Finally, the effectiveness of the proposed method is demonstrated through numerical examples.

担当経験のある科目(授業)

 14

主要な所属学協会

 7

主要な共同研究・競争的資金等の研究課題

 47

主要なその他

 1