• Title/Summary/Keyword: Matlab Simulator

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Accurate MATLAB Simulink PV System Simulator Based on a Two-Diode Model

  • Ishaque, Kashif;Salam, Zainal;Taheri, Hamed
    • Journal of Power Electronics
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    • v.11 no.2
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    • pp.179-187
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    • 2011
  • This paper proposes a MATLAB Simulink simulator for photovoltaic (PV) systems. The main contribution of this work is the utilization of a two-diode model to represent a PV cell. This model is known to have better accuracy at low irradiance levels which allows for a more accurate prediction of PV system performance. To reduce computational time, the input parameters are reduced to four and the values of $R_p$ and $R_s$ are estimated by an efficient iteration method. Furthermore, all of the inputs to the simulator are information available on a standard PV module datasheet. The simulator supports large array simulations that can be interfaced with MPPT algorithms and power electronic converters. The accuracy of the simulator is verified by applying the model to five PV modules of different types (multi-crystalline, mono-crystalline, and thin-film) from various manufacturers. It is envisaged that the proposed work can be very useful for PV professionals who require a simple, fast and accurate PV simulator to design their systems.

Implementation of VANET Simulator using Matlab (Matlab을 이용한 VANET 시뮬레이터 구현)

  • Nam, Jae-hyun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.20 no.6
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    • pp.1171-1176
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    • 2016
  • VANET are a special kind of MANET adapted to the communications between vehicles. In this work, we propose the models used for representing the communication among vehicles, vehicles mobility features, and VANET simulator using realistic vehicular mobility models. VANET requires that a traffic and network simulator should be used together to perform this test. But, simulator tool has been preferred over traffic simulation because it simple, easy and cheap. Goal of this paper is to create a simulation of Vehicular Ad-Hoc network for urban scenario which can be used for testing purposes. Such environment can be used while designing better MAC protocols in VANETs. We are evaluating the performance of two routing protocols namely AODV and DSDV. The comparison was based on the throughout, packet loss and end-to-end delay. We found that DSDV has less throughput performance and high routing overhead than AODV. On average end-to-end delay and packet loss, AODV performs better than DSDV.

On the Implementation of Articulatory Speech Simulator Using MRI (MRI를 이용한 조음모델시뮬레이터 구현에 관하여)

  • Jo, Cheol-Woo
    • Speech Sciences
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    • v.2
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    • pp.45-55
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    • 1997
  • This paper describes the procedure of implementing an articulatory speech simulator, in order to model the human articulatory organs and to synthesize speech from this model after. Images required to construct the vocal tract model were obtained from MRI, they were then used to construct 2D and 3D vocal tract shapes. In this paper 3D vocal tract shapes were constructed by spatially concatenating and interpolating sectional MRI images. 2D vocal tract shapes were constructed and analyzed automatically into a digital filter model. Following this speech sounds corresponding to the model were then synthesized from the filter. All procedures in this study were using MATLAB.

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Development of charge/discharge simulator model for network based vehicle (네트워크 기반 자동차용 충/방전 시스템 시뮬레이터 모델 개발)

  • Lee, Sang-Seok;Yang, Seung-Ho;Cho, Sang-Bock
    • Proceedings of the KIPE Conference
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    • 2005.07a
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    • pp.634-637
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    • 2005
  • We propose a charge/discharge model for network based vehicle. These model include motor, alternator, lamp, brake, window brush, air conditioner, etc.. Also, we simulate these models in Matlab. The simulation results show that error range is less than 3%. So, we can adopt these model to charge/discharge simulator for network based vehicle. If this error range can be shrunk within 2%, we can use this simulator for comertial use.

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Simulation Implementation of Fossil Power Plant Condensate Pumps' Rotation Operation Logic Using MATLAB/Simulink (MATLAB/Simulink를 이용한 화력발전소 복수펌프 순환기동로직 시뮬레이션 구현)

  • Yoon, Chang-Sun;Hong, Yeon-Chan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.1
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    • pp.693-699
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    • 2016
  • The simulators for pump operation developed by domestic or overseas research have been developed for dynamic analysis or operator training purposes. However, previous developed simulators focused on the operators so they are unsuitable for logic designers or commissioning engineers who need to change the operation conditions or logics arbitrarily. In addition, the simulator for two or more condensate pumps' operation, which can be used easily by plant designers or operators, has not been developed. Accordingly, this paper suggests a simulation method that can be used easily for plant designers or operators using MATLAB Simulink. This suggestion helps users who can use MATLAB to implement ANSI/ISA S5.2, which is applied mainly for DCS (Distributed Control System). In addition, to implement the logics specified in the CODE, Sub-Systems were created for the block and evaluated to determine if they can be used in the simulator. In the working level stage using the suggested method, all error possibilities that might occur during the three pumps' rotation operation could be verified with the suggested simulator during the design stage or before operation.

Simulator for a Micro-Turbine during Start-up by Constant Power Output Motoring Method using Starter (시동기의 정 출력 시동 기법에 의한 마이크로터빈 시동 구간의 운전 시뮬레이터 개발)

  • Rho, Min-Sik
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.58 no.10
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    • pp.2028-2037
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    • 2009
  • This paper presents the simulator for dynamic modeling of a MT(micro turbine) during start-up period. The simulator is implemented by modeling a dynamic power of main components of a MT including compressor, combustor and turbine. A modeling for a MT under steady state operation can be accurately built from thermodynamics analysis. But dynamic modeling during start-up period is very difficult because efficiency of main components is very low and the designed value has big error and nonlinear characteristics during start-up. In this paper, new method without using thermodynamics analysis during start-up is proposed for the simulator. The power models of main components are derived from analysis of the experimental operation data by test motoring using a electric starter under constant power output. The simulator is developed using MATLAB/Simulink. For constant power output control, sensorless vector inverter is designed and algorithms for starting from stall and method for controling a output power are proposed. The performance of developed simulator is verified by comparing experimental and simulation start-up results.

Development of HVDC System Simulator Using MATLAB (MATLAB을 이용한 HVDC 시스템 시뮬레이터 개발)

  • Cho, Shin;Park, In-Gyu;Ahn, Tae-Chop
    • Proceedings of the KIEE Conference
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    • 2005.07b
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    • pp.1346-1348
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    • 2005
  • 디지털 프로세서의 성능이 크게 향상됨에 따라 HVDC(High Voltage Direct Current) 시스템의 제어에 고급 지능형 제어 기술의 적용이 연구되고 있다. 이러한 연구의 일환으로, 본 논문에서는 MATLAB을 이용한 HVDC 시스템 시뮬레이터의 개발 결과를 소개한다. 시뮬레이터는 MATLAB의 프로그램 언어와 행렬 연산 기능을 이용하였으며, 회로의 수식화는 전압원 및 스위칭 소자, 변압기를 포함할 수 있는 수정된 마디 해석법(modified nodal analysis)을 사용하였고, 적분법은 Backward Euler 적분법을 사용하여 수치적 진동(numerical oscillation) 문제가 발생하지 않도록 하였다. 개발 결과, 본 시뮬레이터가 향후의 HVDC 시스템 지능형 제어 기술 연구에 유용하게 활용될 것으로 기대한다.

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Educational hardware and simulator development of Multifunction Array Radar

  • Lee, Jong-Hyun;Kim, Tae-Jun;Chun, Joo-Hwan;Park, Jin-Kyu;Kim, Yong-Hwan
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.1797-1801
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    • 2004
  • In this paper we show the hardware testbed and software simulator of multi function array radar (MFAR). The hardware MFAR is simple and flexible hardware to implement various radar beamforming and detecting algorithms. To overcome the limitation of hardware MFAR, the software simulator is proposed. User can simulate radar under the various environment conditions adjusting the parameter of simulator. User can set environment of radar, such as the location and velocity of target, jammer and the terrain clutter. The radar use various probing pulses and supports two operation mode, surveillance and tracking mode.

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Distributed Simulator for General Control System in CEMTool

  • Lee, Tai-Ri;Lee, Young-Sam;Lee, Kwan-Ho;Kwon, Wook-Hyun
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.2230-2234
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    • 2003
  • This paper proposes a distributed simulator for general control system in CEMTool. Systems can be described by SIMTool likes the simulink in Matlab. For distributed simulation, we can seperate any system into several parallel subsystems in SIMTool. The number of parallel subsystem can be determined by the system's property. After seperation, parallel simulator will do initialization, one-step-ahead simulation, block-distribution and ordering and so on. Finally, simulator will create independent C codes and executive files for each subsystem. The whole system is fulfilled by several PCs, and each PC executes one subsystem. There are communications among these subsystem using reflective memory or ethernet. We have made several experiments, and the 5-stand cold rolling mill control system is our main target. The result of parallel simulation has shown effective speedup in comparison with one pc simulation.

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Development of Simulator for Wind Power Generation (풍력발전용 시뮬레이터 개발)

  • Seo, Young-Ger;Lee, Ji-Eun;Ko, Jong-Sun
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.58 no.6
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    • pp.1123-1129
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    • 2009
  • The main goal of this paper is to simulate a Doubly-Fed Induction Generator (DFIG), which is similar to a real system. Wind velocity data is applied to a 2D Lookup table as a speed reference for a turbine model. A real electric machine's parameters are put in the simulator to get some results of the real system. The Matlab have been generally used to simulate DFIG, but it has some differences from the real system and is difficult to implement. A Simplorer simulator, however, simplifies DFIG simulation. The turbine is directly connected with the DFIG to be close to the real system. The machine's rotor is excited and controlled by the discrete carrier modulated matrix converter. It is possible to retrieve important information, like a generated power and wind quality etc., from the simulator without a huge wind turbine.