FPGA-based hardware-in-the-loop verification of dual-stage HDD head position control

AbstractThe present paper describes the controller design for a hydraulic hexapod which is used as an excitation unit for a Hardware-in-the-Loop axle test rig. This includes a description of the plant model, the subordinate drive controllers, the sliding mode state observer as well as the position control of the free hexapod. Measurements show the high dynamics of the position-controlled hexapod. The concept is extended to a hybrid position/force control to be used during axle test maneuvers. Its functionality is demonstrated by a measurement used for the identification of the axle kinematics.

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Analysis and robust position control of an electromechanical control actuation system

Transactions of the Institute of Measurement and Control ◽

10.1177/0142331218813421 ◽

2018 ◽

Vol 42 (3) ◽

pp. 628-640 ◽

Cited By ~ 1

Author(s):

Ersin Daş ◽

İsmail İlker Delice ◽

Murat Keleş

Keyword(s):

Control System ◽

Position Control ◽

Brushless Dc Motor ◽

Hardware In The Loop ◽

Simulation Environment ◽

Brushless Dc ◽

Performance Requirements ◽

Actuation System ◽

Position Controller ◽

Crank Mechanism

This study investigates a modified electromechanical actuator for a guided ammunition fin control system. This modification, which is required due to space limitations, is the use of an eccentric type inverted slider crank mechanism instead of a centric type inverted slider crank mechanism. Brushless DC motor-driven mechanism is modeled experimentally. Using the obtained model, the H∞ type robust position controller is synthesized in the simulation environment and applied to the real system in hardware in the loop tests. The effectiveness of the proposed mechanism and the performance of the synthesized robust position controller are verified by comparing the pre-determined performance requirements and the obtained tests results. It has been shown that for a constant volume, the eccentric type mechanism provides about a 7.6% reduction ratio advantage over the centric type mechanism.

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Hardware-in-the-loop simulation for estimation of position control performance of machine tool feed drive

Precision Engineering ◽

10.1016/j.precisioneng.2019.08.010 ◽

2019 ◽

Vol 60 ◽

pp. 587-593 ◽

Cited By ~ 3

Author(s):

Namhyun Kim ◽

Hyunjung Kim ◽

Wonkyun Lee

Keyword(s):

Machine Tool ◽

Position Control ◽

Hardware In The Loop ◽

Control Performance ◽

Feed Drive

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Comparative Analysis among Single-Stage, Dual-Stage, and Triple-Stage Actuator Systems Applied to a Hard Disk Drive Servo System

Actuators ◽

10.3390/act8030065 ◽

2019 ◽

Vol 8 (3) ◽

pp. 65 ◽

Cited By ~ 1

Author(s):

Alamgir Hossain ◽

Md. Arifur Rahman

Keyword(s):

Hard Disk Drive ◽

High Precision ◽

Position Control ◽

Servo System ◽

Hard Disk ◽

Disk Drive ◽

System A ◽

Dual Stage ◽

Stage System ◽

Actuation Systems

In modern times, the design and optimization of different actuator systems for controlling a high-precision position control system represent a popular interdisciplinary research area. Initially, only single-stage actuator systems were used to control most of the motion control applications. Currently, dual-stage actuation systems are widely applied to high-precision position control systems such as hard disk drive (HDD) servo systems. In the dual-stage system, a voice coil motor (VCM) actuator is used as the primary stage and a piezoelectric micro-actuator is applied as the secondary stage. However, a dual-stage control architecture does not show significant performance improvements to achieve the next-generation high-capacity HDD servo system. Research continues on how to fabricate a tertiary actuator for a triple-stage HDD servo system. A thermal positioning controller (TPC) actuator is considered promising as the tertiary stage. The triple-stage system aims to achieve greater bandwidth, track density, and disk speed, with minimum sensitivity and greater error minimization. In this work, these three actuation systems with different combinations of proportional plus integral (PI), proportional plus derivative (PD), and proportional plus integral plus derivative (PID) controller, lag-lead controller, lag filter, and inverse lead plus a PI controller were designed and analyzed through simulation to achieve high-precision positioning. The comparative analyses were done on the MATLAB/Simulink simulation platform.

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POSITION CONTROL OF VTOL SYSTEM USING ANFIS VIA HARDWARE IN THE LOOP

SINERGI ◽

10.22441/sinergi.2021.3.008 ◽

2021 ◽

Vol 25 (3) ◽

pp. 309

Author(s):

Hari Maghfiroh ◽

Chico Hermanu ◽

Vernanda Sitorini Zul Hizmi

Keyword(s):

Control System ◽

Fuzzy Logic Controller ◽

Position Control ◽

Initial Position ◽

Point Of View ◽

Hardware In The Loop ◽

Motor Speed ◽

Loading Test ◽

Neuro Fuzzy ◽

Controller Performance

Electric motors have been widely applied in various equipment. One application is found in Unmanned Aerial Vehicles (UAVs). An electric motor speed control system that can balance the aircraft's position is one of the mandatory features that must be owned by the aircraft. The position balancer control also supports the Vertical Take-Off Landing (VTOL) system. This study's VTOL position control system uses Hardware-in-the-loop (HIL) method with MATLAB Simulink and Arduino. ANFIS (Adaptive Neuro-Fuzzy Inferences System) is used as a position control algorithm. The controller performance is compared with conventional PID and FLC (Fuzzy Logic Controller). The system is tested as an initial position variation and loading test. The experiment shows that HIL can help fast prototyping by faster changes in the controller algorithms and is easy to program. The result is varied in each experiment. In the ISE (Integral Square of Error) point of view, ANFIS is better than PID by 100 % and has a very small difference from FLC in the initial position test. ANFIS is better by 95.44% and 4.56% compared with PID and FLC in the loading test, respectively.

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