Fine Tracking Control System based on Double Equivalent-Perfect Tracking Control System and Error-Based Disturbance Observer for Optical Disk

Sakimura, Naohide; Yoshida, Keisuke; Ohashi, Takahiro; Ohishi, Kiyoshi; Miyazaki, Toshimasa

doi:10.1541/ieejjia.4.1

Cited by 5 publications

(9 citation statements)

References 19 publications

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“…The ratios n(z)/d(z) and β(z)/α(z) of a rational function are represented by (9) and (10), respectively.…”

Section: Design Of Feedback Controller With Considering Time Delaymentioning

confidence: 99%

“…Several closed loop transfer functions which has LPF of different band-width are expressed as (9). The bandwidth of control system depends on the bandwidth of LPF.…”

Section: Error-based Communication Disturbance Observermentioning

confidence: 99%

“…Therefore, a high-precision tracking control structure is required for the optical disc drive system. To overcome this problem, several high-performance tracking control system that uses the predictive control method have already been proposed (2) (6)- (9) . Generally, a full FPGA * Nagaoka University of Technology 1603-1, Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan control system does not need to use predictive control because its sampling time is very short.…”

Section: Introductionmentioning

confidence: 99%

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Full FPGA Tracking Control System Based on Error-Based Communication Disturbance Observer Considering Time Delay for Optical Disc System

et al. 2017

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Currently, a high-precision tracking control system is required for a large-capacity optical disc drive system. This paper proposes a new full field-programmable gate array (FPGA) tracking control system based on an error-based communication disturbance observer (ECDOB) considering the time delay of an optical disc drive system. The FPGA control system may have a large influence on both the integer time delay and the non-integer time delay of the control system. In order to consider the time delay, this study reconstructs the feedback control system by using the limited pole placement method. Moreover, this paper proposes a new ECDOB. The experimental and numerical simulation results confirm that the tracking performance of the proposed system is better than that of a conventional feedback control system. In full FPGA tracking control of optical disc systems, the proposed ECDOB-based tracking controller exhibits good performance.

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“…The ratios n(z)/d(z) and β(z)/α(z) of a rational function are represented by (9) and (10), respectively.…”

Section: Design Of Feedback Controller With Considering Time Delaymentioning

confidence: 99%

“…Several closed loop transfer functions which has LPF of different band-width are expressed as (9). The bandwidth of control system depends on the bandwidth of LPF.…”

Section: Error-based Communication Disturbance Observermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Full FPGA Tracking Control System Based on Error-Based Communication Disturbance Observer Considering Time Delay for Optical Disc System

et al. 2017

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“…The disturbance observer (DOB) is often termed as the pronoun of motion control technology. Hence, majority of papers related to motion control in IEEJ J. IA are related to DOB .…”

Section: Motion Controlmentioning

confidence: 99%

Recent advances and outlook in industrial instrumentation and mechatronics control

Shimada

2016

IEEJ Transactions Elec Engng

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Recent years have been characterized by marked progress in industrial instrumentation and mechatronics control technology. This year commemorates the fifth publication year of the IEEJ Journal of Industry Applications (emIEEJ J. IA). Additionally, the Mechatronics Control (MEC) technical committee was formed 3 years ago following a separation from the Industrial Instruments and Control (IIC) technical committee in order to further enhance their respective social contributions. The increased activity of both committees also contributed to the progress of the Journal. This paper discusses the recent advances and outlook in the technical field of industrial instrumentation and mechatronics control based on papers published in the IEEJ J. IA and a few other significant papers, which consider the current activities of the various committees.

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“…In conventional methods, the estimation error is compensated by a model of friction force of each system (11) (12) . In addition, inverse dynamics and observer based compensation are also helpful for industrial systems (13) (14) . In fast precise positioning systems, feedforward compensation reduces positioning deterioration caused by mechanical vibration and friction.…”

Section: Introductionmentioning

confidence: 99%

Disturbance Modeling based on Fourier Series for Precise Reaction Force Estimation in Semicircular Linear Motor

Asai

Shimono

Mizoguchi³

2019

IEEJ Journal IA

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This paper presents a disturbance modeling method for a semicircular linear motor called circular shaft motor (CSM). The CSM is a direct-drive motor that moves along the circumference of a circle, and is expected to realize multipledegree-of-freedom (MDOF) haptic applications. To control the contact force in a CSM system, an observer is implemented to estimate the reaction force instead of using a force sensor. However, the estimated reaction force includes an estimation error caused by forces other than the reaction force. Therefore, a disturbance modeling method for the CSM is proposed to exclude the estimation error. In the proposed method, the variation in characteristics that depend on the velocity is approximated by a Fourier series. To evaluate the adequacy of the model, Akaike's information criterion (AIC) is introduced. To validate the effectiveness of the proposed method, a force control test is performed with the proposed disturbance model on a CSM. In addition, a bilateral control test is conducted to demonstrate the usefulness of the proposed method for force transmission.

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Fine Tracking Control System based on Double Equivalent-Perfect Tracking Control System and Error-Based Disturbance Observer for Optical Disk

Cited by 5 publications

References 19 publications

Full FPGA Tracking Control System Based on Error-Based Communication Disturbance Observer Considering Time Delay for Optical Disc System

Full FPGA Tracking Control System Based on Error-Based Communication Disturbance Observer Considering Time Delay for Optical Disc System

Recent advances and outlook in industrial instrumentation and mechatronics control

Disturbance Modeling based on Fourier Series for Precise Reaction Force Estimation in Semicircular Linear Motor

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