The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform

Takeshi Mizuno - One of the best experts on this subject based on the ideXlab platform.

  • ASCC - Stabilization of Magnetic Suspension System by using First-Order-Reset Element without Derivative Feedback
    2019
    Co-Authors: Yuji Ishino, Masaya Takasaki, Takeshi Mizuno, Daisuke Yamaguchi
    Abstract:

    The stabilization of a Magnetic Suspension system is achieved by using only a nonlinear integrator without other element. The proportional-derivative (PD) feedback is the simplest control method for the Magnetic Suspension system. The proportional element gives restoring force, and the derivative element gives damping to the system. However, the derivative feedback element needs to be carefully designed because unnecessary high-frequency signals generate an adverse effect. Meanwhile, installing a first-order-reset element (FORE) has been proposed to reduce the vibration. The element is a first-order low-pass filter (LPF) with reset functions. This paper proposes to stabilize a Magnetic Suspension system with a FORE only. However, the Magnetic Suspension system cannot be stabilized by the basic FORE. Therefore, the FORE is modified as to the reset conditions. A Magnetic Suspension system is stabilized by the modified FORE. The characteristics of the stabilized Magnetic Suspension system are studied experimentally.

  • Stabilization of Magnetic Suspension System by Using Only a First-Order Reset Element without a Derivative Element
    Actuators, 2019
    Co-Authors: Yuji Ishino, Masaya Takasaki, Takeshi Mizuno, Daisuke Yamaguchi
    Abstract:

    The stabilization of a Magnetic Suspension system is achieved by using a low-pass filter (LPF) with a nonlinear integrator without any other element. A proportional-derivative (PD) control is commonly used as the simplest method of stabilizing a Magnetic Suspension system. Meanwhile, a first-order reset element (FORE) was applied to improve transient characteristics. The original FORE was a first-order LPF with a nonlinear reset integrator element. A Magnetic Suspension system cannot be stabilized by a linear LPF, nor the original FORE. In this work, the reset conditions of the FORE were modified for Magnetic Suspension. This modified FORE succeeded in stabilizing a Magnetic Suspension system. The efficacy of the modified FORE was demonstrated by simulations and experiments. A single degree of freedom Magnetic Suspension system was used in the experiment.

  • the proposal of Magnetic Suspension using laterally control flux path mechanism
    Actuators, 2017
    Co-Authors: Naoki Ishibashi, Yuji Ishino, Daisuke Yamaguchi, Masaya Takasaki, Takeshi Mizuno, Masayuki Hara, Kazuki Yamada
    Abstract:

    A novel flux control Magnetic Suspension system that places control plates beside the Magnetic source (permanent magnet) is proposed. In a conventional flux-path control Magnetic Suspension system, the control plates were inserted between the Magnetic source and the suspended object (floator). In contrast, the control plates were placed beside the Magnetic source in the proposed system. In such a configuration, the effective gap becomes larger than in the conventional system. Basic characteristics of the proposed Magnetic Suspension system were studied both numerically and experimentally. The numerical analyses show that the attractive force acting on the floator increases as the position of the lateral ring-shape control plate increases. The variation of the attractive force is sufficient for the stabilization of the Suspension system. It is also shown that lateral force can be generated by dividing the plates into halves and moving them differentially. The predicted characteristics are confirmed experimentally in a fabricated apparatus with a three-axis force sensor and a gap adjustment mechanism.

  • Controllability and Observability of Parallel Magnetic Suspension Systems
    Asian Journal of Control, 2016
    Co-Authors: Takeshi Mizuno, Masaya Takasaki, Yuji Ishino
    Abstract:

    The controllability and observability of parallel Magnetic Suspension systems are investigated analytically. A parallel Magnetic Suspension system has multiple floators and electromagnets driven by a single amplifier. In this paper, the multiplicity is set to an arbitrary counting number n. Parallel systems are classified into four types based on the output of the power amplifier and the connection of the coils. This paper treats three of them: current-controlled with series-connected coils; voltage-controlled with series-connected coils; and voltage-controlled with parallel-connected coils. The conditions of controllability and observability of each system are clarified. The feasibility of parallel Magnetic Suspension is demonstrated by simulations and experiments.

  • Study on Double Parallel Magnetic Suspension System With Parallel Connection
    Volume 2: Legged Locomotion; Mechatronic Systems; Mechatronics; Mechatronics for Aquatic Environments; MEMS Control; Model Predictive Control; Modelin, 2012
    Co-Authors: Takeshi Mizuno, Yuji Ishino, Kazuya Nishimura, Masaya Takasaki
    Abstract:

    A double parallel Magnetic Suspension with parallel connection is achieved. In the double parallel Magnetic Suspension system, two Magnetic Suspension subsystems are controlled with a single power amplifier. Double parallel Suspension systems are classified into two types based on the connection of the two coils: series-connected and parallel-connected. The feasibility of series-connected Magnetic Suspension has been already demonstrated in the previous works. This paper focuses on the parallel-connected parallel Suspension. The controllability of the parallel-connected parallel Suspension is discussed based on a mathematical model. The feasibility of parallel-connected Magnetic Suspension is demonstrated experimentally.© 2012 ASME

Masaya Takasaki - One of the best experts on this subject based on the ideXlab platform.

  • ASCC - Stabilization of Magnetic Suspension System by using First-Order-Reset Element without Derivative Feedback
    2019
    Co-Authors: Yuji Ishino, Masaya Takasaki, Takeshi Mizuno, Daisuke Yamaguchi
    Abstract:

    The stabilization of a Magnetic Suspension system is achieved by using only a nonlinear integrator without other element. The proportional-derivative (PD) feedback is the simplest control method for the Magnetic Suspension system. The proportional element gives restoring force, and the derivative element gives damping to the system. However, the derivative feedback element needs to be carefully designed because unnecessary high-frequency signals generate an adverse effect. Meanwhile, installing a first-order-reset element (FORE) has been proposed to reduce the vibration. The element is a first-order low-pass filter (LPF) with reset functions. This paper proposes to stabilize a Magnetic Suspension system with a FORE only. However, the Magnetic Suspension system cannot be stabilized by the basic FORE. Therefore, the FORE is modified as to the reset conditions. A Magnetic Suspension system is stabilized by the modified FORE. The characteristics of the stabilized Magnetic Suspension system are studied experimentally.

  • Stabilization of Magnetic Suspension System by Using Only a First-Order Reset Element without a Derivative Element
    Actuators, 2019
    Co-Authors: Yuji Ishino, Masaya Takasaki, Takeshi Mizuno, Daisuke Yamaguchi
    Abstract:

    The stabilization of a Magnetic Suspension system is achieved by using a low-pass filter (LPF) with a nonlinear integrator without any other element. A proportional-derivative (PD) control is commonly used as the simplest method of stabilizing a Magnetic Suspension system. Meanwhile, a first-order reset element (FORE) was applied to improve transient characteristics. The original FORE was a first-order LPF with a nonlinear reset integrator element. A Magnetic Suspension system cannot be stabilized by a linear LPF, nor the original FORE. In this work, the reset conditions of the FORE were modified for Magnetic Suspension. This modified FORE succeeded in stabilizing a Magnetic Suspension system. The efficacy of the modified FORE was demonstrated by simulations and experiments. A single degree of freedom Magnetic Suspension system was used in the experiment.

  • the proposal of Magnetic Suspension using laterally control flux path mechanism
    Actuators, 2017
    Co-Authors: Naoki Ishibashi, Yuji Ishino, Daisuke Yamaguchi, Masaya Takasaki, Takeshi Mizuno, Masayuki Hara, Kazuki Yamada
    Abstract:

    A novel flux control Magnetic Suspension system that places control plates beside the Magnetic source (permanent magnet) is proposed. In a conventional flux-path control Magnetic Suspension system, the control plates were inserted between the Magnetic source and the suspended object (floator). In contrast, the control plates were placed beside the Magnetic source in the proposed system. In such a configuration, the effective gap becomes larger than in the conventional system. Basic characteristics of the proposed Magnetic Suspension system were studied both numerically and experimentally. The numerical analyses show that the attractive force acting on the floator increases as the position of the lateral ring-shape control plate increases. The variation of the attractive force is sufficient for the stabilization of the Suspension system. It is also shown that lateral force can be generated by dividing the plates into halves and moving them differentially. The predicted characteristics are confirmed experimentally in a fabricated apparatus with a three-axis force sensor and a gap adjustment mechanism.

  • Controllability and Observability of Parallel Magnetic Suspension Systems
    Asian Journal of Control, 2016
    Co-Authors: Takeshi Mizuno, Masaya Takasaki, Yuji Ishino
    Abstract:

    The controllability and observability of parallel Magnetic Suspension systems are investigated analytically. A parallel Magnetic Suspension system has multiple floators and electromagnets driven by a single amplifier. In this paper, the multiplicity is set to an arbitrary counting number n. Parallel systems are classified into four types based on the output of the power amplifier and the connection of the coils. This paper treats three of them: current-controlled with series-connected coils; voltage-controlled with series-connected coils; and voltage-controlled with parallel-connected coils. The conditions of controllability and observability of each system are clarified. The feasibility of parallel Magnetic Suspension is demonstrated by simulations and experiments.

  • Study on Double Parallel Magnetic Suspension System With Parallel Connection
    Volume 2: Legged Locomotion; Mechatronic Systems; Mechatronics; Mechatronics for Aquatic Environments; MEMS Control; Model Predictive Control; Modelin, 2012
    Co-Authors: Takeshi Mizuno, Yuji Ishino, Kazuya Nishimura, Masaya Takasaki
    Abstract:

    A double parallel Magnetic Suspension with parallel connection is achieved. In the double parallel Magnetic Suspension system, two Magnetic Suspension subsystems are controlled with a single power amplifier. Double parallel Suspension systems are classified into two types based on the connection of the two coils: series-connected and parallel-connected. The feasibility of series-connected Magnetic Suspension has been already demonstrated in the previous works. This paper focuses on the parallel-connected parallel Suspension. The controllability of the parallel-connected parallel Suspension is discussed based on a mathematical model. The feasibility of parallel-connected Magnetic Suspension is demonstrated experimentally.© 2012 ASME

Fan Wang - One of the best experts on this subject based on the ideXlab platform.

Shu Guang-wei - One of the best experts on this subject based on the ideXlab platform.

  • Simulation of Magnetic Suspension Control System Based on Simulink
    Computer Simulation, 2008
    Co-Authors: Shu Guang-wei
    Abstract:

    Based on the fundamental theory of dynamics and electroMagnetics,the mathematic model of a single-magnet Magnetic Suspension system of the EMS Maglev was proposed with Lagrange equation in MATLAB/Simulink enviroment. The system simulation model using linear quadratic optimal control strategy was given and the main factors which affect the dynamic performance of the system were analyzed in detail. The simulation results show that this method is an effective way for modeling and simulating the Magnetic Suspension system.

  • Magnetic Suspension Control System Based on Stochastic Linear Quadratic Optimization
    Journal of East China University of Science and Technology, 2005
    Co-Authors: Shu Guang-wei
    Abstract:

    The mathematical model of a single-magnet Magnetic Suspension system is presented on the basis of analyzing the structural characteristics of a Magnetic Suspension system of the electric Magnetic system(EMS) MAGLEV.Stochastic linear quadratic optimal control strategy is used to design the controller.The control effect of this Magnetic Suspension control system to the time history of the magnet gap for a gap initial condition and a force disturbance under different performance index weight matrices is(researched).Finally,the simulation results are given to provide a reference for the design of the Magnetic Suspension control system.

Yuji Ishino - One of the best experts on this subject based on the ideXlab platform.

  • ASCC - Stabilization of Magnetic Suspension System by using First-Order-Reset Element without Derivative Feedback
    2019
    Co-Authors: Yuji Ishino, Masaya Takasaki, Takeshi Mizuno, Daisuke Yamaguchi
    Abstract:

    The stabilization of a Magnetic Suspension system is achieved by using only a nonlinear integrator without other element. The proportional-derivative (PD) feedback is the simplest control method for the Magnetic Suspension system. The proportional element gives restoring force, and the derivative element gives damping to the system. However, the derivative feedback element needs to be carefully designed because unnecessary high-frequency signals generate an adverse effect. Meanwhile, installing a first-order-reset element (FORE) has been proposed to reduce the vibration. The element is a first-order low-pass filter (LPF) with reset functions. This paper proposes to stabilize a Magnetic Suspension system with a FORE only. However, the Magnetic Suspension system cannot be stabilized by the basic FORE. Therefore, the FORE is modified as to the reset conditions. A Magnetic Suspension system is stabilized by the modified FORE. The characteristics of the stabilized Magnetic Suspension system are studied experimentally.

  • Stabilization of Magnetic Suspension System by Using Only a First-Order Reset Element without a Derivative Element
    Actuators, 2019
    Co-Authors: Yuji Ishino, Masaya Takasaki, Takeshi Mizuno, Daisuke Yamaguchi
    Abstract:

    The stabilization of a Magnetic Suspension system is achieved by using a low-pass filter (LPF) with a nonlinear integrator without any other element. A proportional-derivative (PD) control is commonly used as the simplest method of stabilizing a Magnetic Suspension system. Meanwhile, a first-order reset element (FORE) was applied to improve transient characteristics. The original FORE was a first-order LPF with a nonlinear reset integrator element. A Magnetic Suspension system cannot be stabilized by a linear LPF, nor the original FORE. In this work, the reset conditions of the FORE were modified for Magnetic Suspension. This modified FORE succeeded in stabilizing a Magnetic Suspension system. The efficacy of the modified FORE was demonstrated by simulations and experiments. A single degree of freedom Magnetic Suspension system was used in the experiment.

  • the proposal of Magnetic Suspension using laterally control flux path mechanism
    Actuators, 2017
    Co-Authors: Naoki Ishibashi, Yuji Ishino, Daisuke Yamaguchi, Masaya Takasaki, Takeshi Mizuno, Masayuki Hara, Kazuki Yamada
    Abstract:

    A novel flux control Magnetic Suspension system that places control plates beside the Magnetic source (permanent magnet) is proposed. In a conventional flux-path control Magnetic Suspension system, the control plates were inserted between the Magnetic source and the suspended object (floator). In contrast, the control plates were placed beside the Magnetic source in the proposed system. In such a configuration, the effective gap becomes larger than in the conventional system. Basic characteristics of the proposed Magnetic Suspension system were studied both numerically and experimentally. The numerical analyses show that the attractive force acting on the floator increases as the position of the lateral ring-shape control plate increases. The variation of the attractive force is sufficient for the stabilization of the Suspension system. It is also shown that lateral force can be generated by dividing the plates into halves and moving them differentially. The predicted characteristics are confirmed experimentally in a fabricated apparatus with a three-axis force sensor and a gap adjustment mechanism.

  • Controllability and Observability of Parallel Magnetic Suspension Systems
    Asian Journal of Control, 2016
    Co-Authors: Takeshi Mizuno, Masaya Takasaki, Yuji Ishino
    Abstract:

    The controllability and observability of parallel Magnetic Suspension systems are investigated analytically. A parallel Magnetic Suspension system has multiple floators and electromagnets driven by a single amplifier. In this paper, the multiplicity is set to an arbitrary counting number n. Parallel systems are classified into four types based on the output of the power amplifier and the connection of the coils. This paper treats three of them: current-controlled with series-connected coils; voltage-controlled with series-connected coils; and voltage-controlled with parallel-connected coils. The conditions of controllability and observability of each system are clarified. The feasibility of parallel Magnetic Suspension is demonstrated by simulations and experiments.

  • Study on Double Parallel Magnetic Suspension System With Parallel Connection
    Volume 2: Legged Locomotion; Mechatronic Systems; Mechatronics; Mechatronics for Aquatic Environments; MEMS Control; Model Predictive Control; Modelin, 2012
    Co-Authors: Takeshi Mizuno, Yuji Ishino, Kazuya Nishimura, Masaya Takasaki
    Abstract:

    A double parallel Magnetic Suspension with parallel connection is achieved. In the double parallel Magnetic Suspension system, two Magnetic Suspension subsystems are controlled with a single power amplifier. Double parallel Suspension systems are classified into two types based on the connection of the two coils: series-connected and parallel-connected. The feasibility of series-connected Magnetic Suspension has been already demonstrated in the previous works. This paper focuses on the parallel-connected parallel Suspension. The controllability of the parallel-connected parallel Suspension is discussed based on a mathematical model. The feasibility of parallel-connected Magnetic Suspension is demonstrated experimentally.© 2012 ASME