58 research outputs found

    A Review of Resonant Converter Control Techniques and The Performances

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    paper first discusses each control technique and then gives experimental results and/or performance to highlights their merits. The resonant converter used as a case study is not specified to just single topology instead it used few topologies such as series-parallel resonant converter (SPRC), LCC resonant converter and parallel resonant converter (PRC). On the other hand, the control techniques presented in this paper are self-sustained phase shift modulation (SSPSM) control, self-oscillating power factor control, magnetic control and the H-∞ robust control technique

    State-Feedback Controller Based on Pole Placement Technique for Inverted Pendulum System

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    This paper presents a state space control technique for inverted pendulum system using simulation and real experiment via MATLAB/SIMULINK software. The inverted pendulum is difficult system to control in the field of control engineering. It is also one of the most important classical control system problems because of its nonlinear characteristics and unstable system. It has three main problems that always appear in control application which are nonlinear system, unstable and non-minimumbehavior phase system. This project will apply state feedback controller based on pole placement technique which is capable in stabilizing the practical based inverted pendulum at vertical position. Desired design specifications which are 4 seconds settling time and 5 % overshoot is needed to apply in full state feedback controller based on pole placement technique. First of all, the mathematical model of an inverted pendulum system is derived to obtain the state space representation of the system. Then, the design phase of the State-Feedback Controller can be conducted after linearization technique is performed to the nonlinear equation with the aid of mathematical aided software such as Mathcad. After that, the design is simulated using MATLAB/Simulink software. The controller design of the inverted pendulum system is verified using simulation and experiment test. Finally the controller design is compared with PID controller for benchmarking purpose

    A SIMULATION STUDY OF STATE-FEEDBACK CONTROL METHOD FOR ELECTRO HYDRAULIC SERVO MODEL

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    Electro hydraulic servo system is used by many industries due to its ability to impart large forces. It also has advantage in term of fast response and robustness. The electro hydraulic system suffered from errors of the transient response which are steady state error, settling time and the ripples. It is crucial to design a controller for the system to ensure the reliability of the system. Aiming at the characteristic of the system, steady state feedback control method is designed to compensate the error. The analysis of the system is done based on the transient response specifically on the actuator part. MATLAB Simulink is used as the simulation software to evaluate the force performance of state feedback controller method. The steady state error, settling time and ripple are observed and recorded for each controller. Three methods is applied, which are full feedback, state feedback with feed forward and integral control are compared with proportional, integral and derivatives (PID) controller. The result of each controller shows the differences performance. Based on the simulation results, the feedforward technique is found to be the best control technique for the electro hydraulic servo system due to the requirement performance such as percent overshoot, settling time, rise time and zero steady state error. This good result will directly benefit industries that use electro hydraulic system as their actuator for production machines

    Pertanika Journal of Science & Technology

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    Proceedings of the 1st International Conference on ASEAN (IC-ASEAN) "Towards a better ASEAN", September 5-6, 2019; Padang, West Sumatra, Indonesia

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    Since the establishment of ASEAN (Association of Southeast Asian Nations) as a regional organization in 1967, it has played a significant role most importantly related to regional affairs and has also given notable contribution to the international arena. Undisputedly, ASEAN has been successfully fostering good relations among its members since its foundation. After completing the first period of its vision of an integrated regional community (ASEAN Community 2015), ASEAN is now preparing for the launch of ASEAN Community Vision 2025, supported by ASEAN Connectivity 2025. As a study center focusing primarily and solely on ASEAN, in collaboration with the Directorate General of ASEAN Cooperation, Indonesian Ministry of Foreign Affairs, the Center of ASEAN Studies Andalas University, will be hosting the International Conference on ASEAN (IC-ASEAN) as a platform to evaluate past actions, to discuss present issues, and to provide an outlook for the future of ASEAN. Aims and Scope The International Conference on ASEAN (IC-ASEAN) is a multidisciplinary conference which covers a broad range of area. The sub theme will be divided into two large categories focusing on ASEAN Community 2015 and 2025 also ASEAN Connectivity 2025. The sub theme related to ASEAN Community will cover issues related to the three pillars (Political-security Community, Economic Community and Social-cultural Community). Meanwhile the ASEAN Connectivity sub theme will include issues within the key areas (Physical Connectivity, Institutional Connectivity and People-to-people Connectivity
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