• Title/Summary/Keyword: Co-simulator

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Design and Implementation of Interface Module between Network Framework for Sensor Network Application and Co-Simulator (센서네트워크 어플리케이션을 위한 네트워크 프레임워크와 통합시뮬레이터 간의 인터페이스 구현 및 설계)

  • Lee, Jeong-Joo;Koak, Dong-Eun;Seo, Min-Suk;Park, Hyun-Ju
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.2
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    • pp.515-524
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    • 2013
  • For the development of reliable software, Software testing is the most important. Recently small changes of the software according to the importance of regression testing is growing. To verify Application of a large number of nodes, Network simulator environment is required. This paper proposed interface module between network framework for sensor network application and co-simulator to unit test sensor network application. To conclude, developer can focus on sensor network application implementation only, so the improved integrated simulator contributes to increase development productivity.

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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    • 2009.07a
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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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Development of Automatic Terrain Following Simulator Using Digital Terrain Elevation Data (디지털 지형 고도 데이터를 이용한 자동 지형 추종 시뮬레이터 개발)

  • Jisu Lee;MunGyou Yoo;Hyunju Lee;Ki Hoon Song;Dong-Ik Cheon;Sangchul Lee
    • Journal of Aerospace System Engineering
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    • v.18 no.1
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    • pp.88-98
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    • 2024
  • In this paper, an Automatic Terrain Following (ATF) Simulator using Digital Terrain Elevation Data (DTED) was proposed. This ATF Simulator consists of a Flight Simulator, a Radar Simulator, and a Terrain Following Computer (TFC) Simulator. DTED and radar scan data generated with DTED were used as the terrain information necessary for terrain following. The ATF Simulator provides three modes of operation: a passive mode that uses DTED, an active mode that uses radar scan data, and a hybrid mode that uses both. We developed an ATF Simulator that could reduce the cost and time required to develop a terrain following system using the LabVIEW development environment and the MATLAB App Designer development environment. It was verified by confirming that the ATF Simulator met all functional requirements.

Design of Power Subsystem Simulator for KOMPSAT Using Object Oriented Methods (객체지향기법을 이용한 다목적 실용위성 전력계 시뮬레이터 설계)

  • Joung Gyu Bum;Lee Sanguk;Cho Sungki;Kim Jae Hoon;Han Kyoungmin;Choi Young Kyu
    • Proceedings of the KIPE Conference
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    • 2002.07a
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    • pp.681-684
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    • 2002
  • In this paper, electrical power subsystem(EPS) simulator for KOMPSAT 2 has been analyzed designed and simulated by object oriented design(OOP) method. To design EPS simulator, the EPS modules, which modeled solar array, solar array regulator, deployment device controller, battery, power control unit, and EPS control unit, are modeled. To verify the EPS simulator, the modules has been simulated. By OOP designs, the EPS simulator is very powerful because this method is applicable to design other EPS simulator.

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Simulator for Monitoring the Operations of Range Extender Electric Vehicles

  • Chun, Tae-Won;Tran, Quang-Vinh;Lee, Hong-Hee;Kim, Heung-Geun;Nho, Eui-Cheol
    • Journal of Power Electronics
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    • v.11 no.4
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    • pp.424-429
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    • 2011
  • In this paper, the simulator of an on-line monitoring system for the range extender electric vehicle has been developed. The messages from the four control modules, the air pressure and fuel level sensors data, and the on/off switching states of 31 indicator lamps can be received through the control area network (CAN), and displayed on the graphic panel. The simulator was designed using the four DSP boards, variable resistors, and toggle switches instead of the four control modules, sensors, and switching state of indicator lamps on an actual series hybrid electric vehicle (SHEV) bus, respectively. The performance of the monitoring technologies was verified with the simulator at the laboratory, and then it was tested on an actual SHEV bus. The simulator is very useful at the initial development of the monitoring system at the hybrid-type or electrical vehicles.

TP-Sim: A Trace-driven Processing-in-Memory Simulator (TP-Sim: 트레이스 기반의 프로세싱 인 메모리 시뮬레이터)

  • Jeonggeun Kim
    • Journal of the Semiconductor & Display Technology
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    • v.22 no.3
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    • pp.78-83
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    • 2023
  • This paper proposes a lightweight trace-driven Processing-In-Memory (PIM) simulator, TP-Sim. TP-Sim is a General Purpose PIM (GP-PIM) simulator that evaluates various PIM system performance-related metrics. Based on instruction and memory traces extracted from the Intel Pin tool, TP-Sim can replay trace files for multiple models of PIM architectures to compare its performance. To verify the availability of TP-Sim, we estimated three different system configurations on the STREAM benchmark. Compared to the traditional Host CPU-only systems with conventional memory hierarchy, simple GP-PIM architecture achieved better performance; even the Host CPU has the same number of in-order cores. For further study, we also extend TP-Sim as a part of a heterogeneous system simulator that contains CPU, GPGPU, and PIM as its primary and co-processors.

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Development of 6-DOF Simulator for Active Engine Mounting System (능동형 엔진 마운트 성능 평가를 위한 6축 시뮬레이터 구축)

  • Kim, Jeong-Hoon;Kim, Jae-San;Lee, Han-Dong;Park, Tae-Ik
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2011.04a
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    • pp.520-525
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    • 2011
  • As worldwide concern stands on global warming and greenhouse gases from internal combustion engine, the interests in technologies for a highly efficient powertrain has been increased. Concurrently the investigation to improve the deteriorated NVH, a by-product of energy efficient powertrain, is conducted seriously. The NVH performance of a new type of active engine mount that offers increased advantages over a passive hydraulic mount is examined using a newly developed 6-DOF simulator. The simulator is in the shape of Hexapod Stewart Platform adopting LEMA, a new type of actuator which is patented and commercialized by ACT Inc,, the world wide leader in the design, development, and manufacture of high performance linear electro-magnetic actuators for active vibration control. The target vibration signals of an aimed vehicle at four engine mounts are measured and simulated by 6-DOF simulator at the laboratory. The resulting NVH performances of the new active mounting system at a vehicle and on a simulator are examined and compared. Even though the active mount performance of lab test demonstrates less effective than the result of a real vehicle test, vibration reduction is identified through the simulator.

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Modelling of effluent and GHGs for wastewater treatment plants using by MS Excel simulator(PKES) (MS Excel 시뮬레이터(PKES)를 이용한 하수처리장 유출수 및 온실가스 모델링)

  • Bin, Jung-In;Lee, Byung-Hun
    • Journal of Korean Society of Water and Wastewater
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    • v.28 no.6
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    • pp.735-745
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    • 2014
  • This paper presents PKES(PuKyung -Excel based Simulator) for WWTPs(wastewater treatment plants) by using MS Excel and VBA(Visual Basic for Application). PKES is a user-friendly simulator for the design and optimization of the whole plant including biological and physico-chemical processes for the wastewater and sludge treatment. PKES calculates the performance under steady or dynamic state and allows changing the mathematical model by the user. Mathematical model implemented in PKES is a improved integration model based on ASM2d and ADM1 for simulation of AS(activated sludge) and AD(anaerobic digestion). Gaseous components of $N_2$, $N_2O$, $CO_2$ and $CH_4$ are added for estimation of GHGs(greenhouse gases) emission. The simulation results for comparison between PKES and Aquasim(EAWAG) showed about the same effluent concentrations. As a result of verification using by measured data of BOD, TSS, TN and TP for 2 years of operation, calculated effluent concentrations were similar to measured effluent concentrations. The values of average RMSE(root mean square error) were 1.9, 0.8, 1.6 and 0.2 mg/L for BOD, TSS, TN and TP, respectively. Total GHGs emission of WWTP calculated by PKES was 138.5 ton-$CO_2$/day and GHGs emissions of $N_2O$, $CO_2$ and $CH_4$ were calculated at 21.7, 28.9 and 87.9 ton-$CO_2$/day, respectively. GHGs emission of activated sludge was 32.5 % and that of anaerobic digestion was 67.5 %.

Analysis of Properties Influencing CO2 Transport Using a Pipeline and Visualization of the Pipeline Connection Network Design: Korean Case Study

  • Lee, Ji-Yong
    • International Journal of Contents
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    • v.13 no.1
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    • pp.45-52
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    • 2017
  • Carbon Capture and Storage (CCS) technologies involve three major stages, i.e., capture, transport, and storage. The transportation stage of CCS technologies has received relatively little attention because the requirements for $CO_2$ transport differ based on the industry-related conditions, geological, and demographical characteristics of each country. In this study, we analyzed the properties of $CO_2$ transport using a pipeline. This study has important implications for ensuring the stability of a long-term CCS as well as the large cost savings, as compared to the small cost ratio as a percentage of the entire CCS system. The state of $CO_2$, network topologies, and node distribution are among the major factors that influence $CO_2$ transport via pipelines. For the analysis of the properties of $CO_2$ transport using a pipeline, the $CO_2$ pipeline connections were visualized by the simulator developed by Lee [11] based on the network topologies in $CO_2$ transport. The case of Korean CCS technologies was applied to the simulation.

Simulator Development for Evaluating Compensation Performance. of Active Power Filter using Three-Dimensional Space Current Co-ordinate (3차원(次元) 전류좌표(電流座標)에 의한 능동전력(能動電力)필터의 보상성능(補償性能) 평가(評價)를 위한 시뮬레이터 개발(開發))

  • Lim, Young-Choel;Jung, Young-Gook;Na, Suk-Hwan;Choi, Chan-Hak;Chang, Young-Hak
    • Proceedings of the KIEE Conference
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    • 1994.07a
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    • pp.337-341
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    • 1994
  • This paper describes an effort to develop a simulator of Active Power Filter (APF) by three dimentional(3-D) space current co-ordinate. System current is represented by 3-D vector composed of three current components - active, reactive and distorted. %THD (%Total Harmonics Distortion) can be converted to height-angle of system current vector and power factor can be defined on 3-D space current co-ordinate without loss of generality. Current of APF and power system can be analyzed by 3-D visualization of current vector trajectory. So, the computer simulation results show that the proposed method by 3-D space current co-ordinate make up for disadvantages of performance evaluation on time / frequency domain.

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