• Title, Summary, Keyword: Hardware simulator

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An experimental study on attitude control of spacecraft using roaction wheel (반작용 휠을 이용한 인공위성 지상 자세제어 실험 연구)

  • 한정엽;박영웅;황보한
    • 제어로봇시스템학회:학술대회논문집
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    • pp.1334-1337
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    • 1997
  • A spacecraft attitude control ground hardware simulator development is discussed in the paper. The simulator is called KT/KARI HILSSAT(Hardware-In-the Loop Simulator Single Axis Testbed), and the main structure consists of a single axis bearing and a satellite main body model on the bearing. The single axis tabel as ans experimental hardware simulator that evaluates performance and applicability of a satellite before evolving and/or confirming a mew or and old control logic used in the KOREASAT is developed. Attitude control of spaceraft by using reaction wheel is performed.

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Development of Hardware Simulator for Operation Analysis of DC Microgrid (DC 마이크로그리드의 동작분석을 위한 하드웨어 시뮬레이터 개발)

  • Lee, Ji-Heon;Han, Byung-Moon
    • Proceedings of the KIPE Conference
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    • pp.251-252
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    • 2011
  • This paper describes the development of hardware simulator for the operation analysis of DC microgrid, which has a wind power, solar power and fuel cell as a distributed generation, and a supercapacitor and battery as an energy storage. A detailed simulation model for the DC microgrid was developed for operation analysis. Based on simulation results a hardware simulator was built in the lab for the purpose of operation analysis. The developed hardware simulator can be utilized to evaluate with practical manner the performance of actual microgrid in the field.

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Development of a Hardware-In-Loop (HIL) Simulator for Spacecraft Attitude Control Using Momentum Wheels

  • Kim, Do-Hee;Park, Sang-Young;Kim, Jong-Woo;Choi, Kyu-Hong
    • Journal of Astronomy and Space Sciences
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    • v.25 no.4
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    • pp.347-360
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    • 2008
  • In this paper, a Hardware-In-the-Loop simulator to simulate attitude control of space craft using momentum wheels is developed. The simulator consists of a spherical air bearing system allowing rotation and tilt in all three axes, three momentum wheels for actuation, and an AHRS (Attitude Heading Reference System). The simulator processes various types of data in PC104 and wirelessly communicates with a host PC using TCP/IP protocol. A simple low-cost momentum wheel assembly set and its drive electronics are also developed. Several experiments are performed to test the performance of the momentum wheels. For the control performance test of the simulator, a PID controller is implemented. The results of experimental demonstrations confirm the feasibility and validity of the Hardware-In-the-Loop simulator developed in the current study.

Dynamic Interaction Analysis of Interconnected Wind Power Generator using Computer Simulation and Real-Size Hardware Simulator (컴퓨터 시뮬레이션과 실규모 하드웨어시뮬레이터를 이용한 계통연계 풍력발전의 응동특성 분석)

  • Yun, Dong-Jin;Han, Byung-Moon;Choy, Young-Do;Jeon, Young-Soo;Jeong, Byoung-Chang;Chung, Yong-Ho
    • Proceedings of the KIEE Conference
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    • pp.1047_1048
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    • 2009
  • This paper describes comparative analysis results about the dynamic interaction of interconnected wind power system using the actual-size hardware simulator and the simulation model with PSCAD/EMTDC. The hardware simulator, which is composed of 2.0MVA induction motor with drive system and 1.5MW doubly-fed induction generator, was built and tested in Go-Chang Test Site of KEPCO for analyzing the dynamic interaction with the interconnected distribution system. The operation of hardware simulator was verified through comparative analysis between experimental results and simulation results obtained by simulation model with PSCAD/EMTDC. The developed hardware simulator and simulation model could be effectively used for analyzing the dynamic interaction, which has various phenomena depending on the wind variation and the network state of interconnected power system.

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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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    • 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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Development of Hardware Simulator for PMSG Wind Power System (영구자석동기발전기 풍력시스템의 하드웨어 시뮬레이터 개발)

  • Lee, Doo-Young;Yun, Dong-Jin;Jeong, Jong-Kyou;Yang, Seung-Chul;Han, Byung-Moon;Song, Seung-Ho
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.6
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    • pp.951-958
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    • 2008
  • This paper describes development of hardware simulator for the PMSG wind power system, which was designed considering wind characteristic, blade characteristic and blade inertia compensation. The simulator consists of three major parts, such as wind turbine model using induction motor, PMSG generator, converter-inverter set. and control system. The turbine simulator generates torque and speed signals for a specific wind turbine with respect to given wind speed. This torque and speed signals are scaled down to fit the input of 2kW PMSG. The PMSG-side converter operates to track the maximum power point, and the grid-side inverter controls the active and reactive power supplied to the grid. The operational feasibility was verified by computer simulations with PSCAD/EMTDC, and the implementation feasibility was confirmed through experimental works with a hardware set-up.

Development of Hardware Simulator for PMSG Wind Power System Composed of Anemometer and Motor-Generator Set (풍속계와 Motor-Generator를 이용한 영구자석동기발전기 풍력발전시스템 하드웨어 시뮬레이터 개발)

  • Oh, Seung-Jin;Han, Byung-Moon
    • Proceedings of the KIPE Conference
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    • pp.185-187
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    • 2009
  • This paper describes development of a hardware simulator for the PMSG wind power system. The simulator consists of a realistic wind turbine model using anemometer, vector drive, induction motor. The turbine model generates torque and speed signals for a specific wind turbine with real wind speed. The torque and speed signals are scaled down to fit for the input power of 3kW PMSG. The hardware simulator was developed through computer simulations, and the operation was confirmed by experimental works.

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Operational Characteristic Analysis of Bipolar DC Distribution System using Hardware Simulator (하드웨어 시뮬레이터에 의한 양극형 직류배전시스템의 동작특성 분석)

  • Lee, Jin-Gyu;Lee, Yoon-Seok;Kim, Jae-Hyuk;Han, Byung-Moon
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.63 no.4
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    • pp.476-483
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    • 2014
  • This paper describes the operational analysis results of the bipolar DC distribution system coupled with the distributed generators. The energy management for AC/DC power trade and the operational principle of distributed generators and energy storages were first analyzed by computer simulation with PSCAD/EMTDC software. After then a hardware simulator for the bipolar DC distribution system was built, which is composed of the grid-tied three-level inverter, battery storage, super-capacitor storage, and the voltage balancer. Various experiments with the hardware simulator were carried out to verify the operation of bipolar DC distribution system. The developed simulator has an upper-level controller which operates in connection with the controllers for each distributed generator and the battery energy storage based on CAN communication. The developed hardware simulator are possible to use in designing the bipolar DC distribution system and analyzing its performance experimentally.

Hardware Simulator Development for a 3-Parallel Grid-Connected PMSG Wind Power System

  • Park, Ki-Woo;Lee, Kyo-Beum
    • Journal of Power Electronics
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    • v.10 no.5
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    • pp.555-562
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    • 2010
  • This paper presents the development of a hardware simulator for a 3-parallel grid-connected PMSG wind power system. With the development of permanent magnetic materials in recent years, the capacity of a PMSG based wind turbine system, which requires a full-scale power converter, has been raised up to a few MW. Since it is limited by the available semiconductor technology, such large amounts of power cannot be delivered with only one power converter. Hence, a parallel connecting technique for converters is required to reduce the ratings of the converters. In this paper, a hardware simulator with 3-parallel converters is described and its control issues are presented as well. Some experimental results are given to illustrate the performance of the simulator system.

DEVELOPMENT AND PERFORMANCE EVALUATION OF SOFTWARE SIMULATOR FOR APPROVING OF VLBI CORRELATION SUBSYSTEM (VLBI상관서브시스템의 검증을 위한 소프트웨어 시뮬레이터의 개발 및 성능시험)

  • Oh, Se-Jin;Roh, Duk-Gyoo;Yeom, Jae-Hwan;Chung, Hyun-Soo;Lee, Chang-Hoon;Kim, Hyo-Ryoung;Kim, Kwang-Dong;Kang, Yong-Woo;Park, Sun-Yeop
    • Publications of The Korean Astronomical Society
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    • v.23 no.2
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    • pp.73-90
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    • 2008
  • A software simulator is developed for verifying the VLBI Correlation Subsystem (VCS) trial product hardware. This software simulator includes the delay tracking, fringe rotation, bit-jump, FFT analysis, re-quantization, and auto/cross-correlation functions so as to confirm the function of the VCS trial product hardware. To verify the effectiveness of the developed software simulator, we carried out experiments using the simulation data which is a mixed signal with white noise and tone signal generated by software. We confirmed that the performance of this software simulator is similar as that of the hardware system. In case of spectral analysis and re-quantization experiment, a serious problem of the VCS hardware, which is not enough for expressing the data stream of FFT results specified in VCS hardware specification, was found by this software simulator. Through the experiments, the performance of software simulator was verified to be efficient. In future, we will improve and modify the function of software simulator to be used as a software correlator of Korea-Japan Joint VLBI Correlator (KJJVC).