• Title/Summary/Keyword: Matlab/Simulink Dynamic Model

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A Study on the Comparison of the Stand-alone operation Characteristics and Matlab/Simulink Dynamic Model of PEMFC and PEMFC/SCB (고분자전해질 연료전지(PEMFC)와 PEMFC/SCB의 동적 Matlab/Simulink 모델링 및 독립운전특성에 관한 연구)

  • Hong, Pyo-Won;Cho, Jae-Hoon
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.25 no.2
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    • pp.53-60
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    • 2011
  • The available power generated from the FC power plant may not be sufficient to meet sustained load demand, peak demand or transient events. An supercapacitor bank(SCB) can supply a large burst of power, but it cannot store a significant amount of energy. The combined use of FC and SCB has the potential for the better energy efficiency, reducing the cost of FC technology and improved dynamic response. In this paper, A single PEMFC and PEMFC operated in parallel with a SC bank are presented, A new dynamic model of PEMFC system, the converter and controller has been developed for stand-alone applications. The simulation results are presented using Matlab/Simulink, and SimPowerSystems environments. It is confirmed that the results show a good performance and stable DC-link voltage for proposed dynamic and mathematical models developed for the combined FC/SCB.

Modeling and Analysis of Supercapacitor Bank System for Hybrid Energy System (하이브리드에너지시스템용 슈퍼캐패시터 Matlab/Simulink 모델개발)

  • Cho, Jea-Hoon;Hong, Won-Pyo
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2009.10a
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    • pp.285-289
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    • 2009
  • In this paper, we propose to research the dynamic Matlab/Simulink model of supercapacitor bank(SCB) for a microgrid application. We demonstrated that this model id sufficient to design the control system of entire power storage system, SCB, the chopper and grid connected converter. The proposed dynamic model is simulated with the help of Matlab/$Simulink^{TK}$ in the MTG/PC/SCB hybrid energy system. The study results show that SCB have a good performance to curb power fluctuation in building microgrid application.

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A Matlab/Simulink-Based PV array-Supercapacitor Model Employing SimPowerSystem and Stateflow Tool Box

  • Hong, Won-Pyo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.28 no.12
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    • pp.18-29
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    • 2014
  • This paper proposes the integration of photovoltaic (PV) and energy storage systems for sustained power generation. In this proposed system, whenever the PV system cannot completely meet load demands, the super capacitor provides power to meet the remaining load. A power management strategy is designed for the proposed system to manage power flows between PV array systems and supercapacitors (SC). The main task of this study was to design PV systems with storage strategies including MPPT with direct control and an advanced DC-link controller and to analyze dynamic model proposed for a PV-SC hybrid power generation system. In this paper, the simulation models for the hybrid energy system are developed using Matlab/Simulink, SimPowerSystems and Matlab/Stateflow tool. This is the key innovative contribution of the research paper. The system performances are verified by carrying out simulation studies using practical load demand profile and real weather data.

MPC based path-following control of a quadcopter drone considering flight path and external disturbances in MATLAB/Simulink (MATLAB/Simulink 기반 주행 경로와 외란을 고려한 쿼드콥터 드론의 모델 예측 제어 기반 경로 주행 제어)

  • Soon-Jae Gwon;Gu-Min Jeong
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.16 no.6
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    • pp.472-477
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    • 2023
  • In this paper, we proposes the use of Model Predictive Control (MPC) techniques to enable quadcopter drones to effectively follow paths and maintain flight safety even under dynamic external environments and disturbances. Through simulations conducted in MATLAB/Simulink, the performance of two controllers, PID and MPC, is compared in flight scenarios with disturbances. The proposed design method shows that the MPC controller, when compared to the PID controller, exhibits a difference in the Mean Squared Error between the intended flight path and the actual path of the quadcopter drone. This difference is 0.2 in performance under no disturbance, and it increases to 0.8 under disturbance, demonstrating the improved path following accuracy of the MPC controller.

Design and Drive characteristics a High Speed Characteristics (송풍기용 고속 SRM의 설계 및 구동특성)

  • Liang, Jianing;Kim, Tae-Hyoung;Ahn, Jin-Woo;An, Young-Joo
    • Proceedings of the KIPE Conference
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    • 2005.07a
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    • pp.565-568
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    • 2005
  • This paper presents dynamic characteristics of super high speed SRM and it's drive. The nonlinear model of super high speed SRM is implement by Matlab/simulink and the simulation results show that the prototypeSRM can operate up 20,000[rpm]with stable performance.

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Degign and Drive Characteristics of High Speed SRM (고속 SRM의 설계 및 구동특성)

  • Liang, Jianing;Kim, Tae-Hyoung;Ahn, Jin-Woo;Ahn, Young-Joo
    • Proceedings of the KIEE Conference
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    • 2005.07b
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    • pp.1138-1140
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    • 2005
  • This paper presents dynamic characteristics of super high speed SRM and it's drive. The nonlinear model of super high speed SRM is implement by Matlab/simulink and the simulation results show that the prototypeSRM can operate up 20,000[rpm]with stable performance.

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Development of the Improved Dynamic Model of the Supercapacitor Considering Self-Discharge (자연방전을 고려한 개선된 슈퍼커패시터의 동특성 모델 개발)

  • Kim, Sang-Hyun;Lee, Kyo-Beum;Choi, Se-Wan;Choi, Woo-Jin
    • The Transactions of the Korean Institute of Power Electronics
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    • v.14 no.3
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    • pp.188-196
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    • 2009
  • Due to its high power density, long cycle life and clean nature supercapacitors are widely used for improving the dynamic characteristics of the new and renewable energy sources and extending the battery run-time and life. In this paper improved dynamic model of the supercapacitor is developed by the electrochemical impedance spectroscopy technique. The developed model can be used to accurately estimate the dynamic behaviour of the supercapacitor and calculate the exact capacitance value at a certain state of charges. The model of the supercapacitor in the frequency domain is equivalently transformed into that in the time domain for Matlab/Simulink simulaton. The simulation data shows fine agreements with experimental results, thereby proving the validity and the accuracy of the developed model.

Dynamic simulation models for seismic behavior of soil systems - Part I: Block diagrams

  • Sahin, Abdurrahman
    • Geomechanics and Engineering
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    • v.9 no.2
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    • pp.145-167
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    • 2015
  • Digital simulation has recently become the preferred method for designing complex and dynamic systems. Simulation packages provide interactive, block-diagram environment for modeling and simulating dynamic models. The block diagrams in simulation models are flowcharts which describe the components of dynamic systems and their interaction. This paper is the first part of the study for determining the seismic behavior of soil systems. The aim of this part is to present the constructed block diagrams for discrete-time analysis of seismic site amplification in layered media for vertically propagating shear waves. Detailed block diagrams are constructed for single and multiple soil layers by considering wave propagation with and without damping, respectively. The block diagrams for recursive filter to model attenuation in discrete-time form are also constructed. Finite difference method is used for strain calculation. The block diagrams are developed by utilizing Simulink which is a software add-on to Matlab.

Power Control modeling and Simulation of Hybrid Power System for Building Microgrid Connected Application

  • Yoon, Gi-Cap;Cho, Jae-Hoon;Hong, Won-Pyo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.23 no.11
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    • pp.84-93
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    • 2009
  • In this paper, we propose to study the possibility of using a photovoltaic system combined with a high speed micro-turbine. This hybrid system can work as stand-alone system or grid connected system as it will be a part of a micro-grid. Initially, we propose Matlab/Simulink dynamic models of photovoltaic, micro turbine systems and supercapacitor. Then, we carry out a simulation comparison of the two systems, this is, with supercapacitor and without supercapacitor bank. We show that supercapacitor bank as short-term storage device was necessary to reduce the fast fluctuation of power in the case of sensitive loads. It is verified the simulation results of Matlab/Simulink based hybrid power system represent the effectiveness of the suggested hybrid power system.