• Journal of Electrical Engineering and Technology
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• 제9권5호
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• pp.1489-1494
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• 2014

A hardware-in-the-loop simulation (HILS) method for a wind farm controller using a real time digital simulator (RTDS) is presented, and performance of the wind farm controller is analyzed. A 100 MW wind farm which includes 5 MW wind power generation systems (WPGS) is modeled and analyzed in RSCAD/RTDS. The wind farm controller is implemented by using a computer, which is connected to the RTDS through transmission control protocol/internet protocol (TCP/IP). The HILS results show the active power and power factor of the wind farm, which are controlled by the wind farm controller. The proposed HILS method in this paper can be effectively utilized to validate and test a wind farm controller under the environment in practice without a real wind farm.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(II)
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• pp.1577-1580
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• 1987

This paper proposes a gate and functional level logic simulator which can be run on XENIX O.S. The simulator has hierarchical structure including Hardware Description Language compiler, Waveform Description Language compiler, and Simulation Command Language compiler. The Hardware Description Language compiler generates data structure composed of gate structure, wire structure, condition structure, and event structure. Simulation algorithm is composed of selective trace and event-driven methods. To improve simulation speed, Cross Referenced Linked List Structure ia defined in building the data structure of circuits.

• 제어로봇시스템학회논문지
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• 제16권9호
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• pp.905-912
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• 2010

Modern version of advanced supersonic fighter have ATCS (Automatic Thrust Control System) to maximum flight safety, fuel efficiency and mission capability the integrated advanced autopilot system such as TFS (Terrain Following System), GCAS (Ground Collision Avoidance System) and AARS (Automatic Attitude Recovery System) and etc. This paper addresses the design and verification of ATCS based on advanced supersonic trainer in HILS (Hardware In the Loop Simulator) with minimum hardware modification to reduce of development cost and maintain of system reliability. The function of ATCS is consisted of target speed hold mode in UA (Up and Away) and angle of attack hold mode in PA (Power Approach). The real-time pilot evaluation reveals that pilot workload is minimized in cruise and approach flight stage by ATCS.

• 디지털산업정보학회논문지
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• 제8권1호
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• pp.1-7
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• 2012

In this paper Vehicle driving simulator have been used in the development and modification of models. A real-time simulation system and washout algorithm for an excavator have been developed for a driving simulator with six degrees of freedom. An interesting question, "how the 6 DOF Driving Simulator can be controlled optimally for the various tasks?" is not easy to be answered. This paper presents the hardware and software developed for a driving simulator of construction vehicle. A simulator can reduce cost and time a variety of driving simulations in the laboratory. Using its 6 DOF Simulator can move in various modes, and perform dexterous tasks. Driving simulators have begun to proliferate in the automotive industry and the associated research community. This effort involves the real-time dynamic of wheel-type excavator the design and manufacturing of the Stewart platform an integrated control system of the platform and three-dimensional graphic modeling of the driving environments.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1989년도 한국자동제어학술회의논문집; Seoul, Korea; 27-28 Oct. 1989
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• pp.17-21
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• 1989

6-DOE simulator system is designed to real-time processing for motion control, data acquisition, image generation and image processing etc.. In this paper, we introduce hardware and software design technologies for distributed processing, event-trapping, system monitoring and time scheduling procedure in 6-DOF simulator system design.

• Journal of Astronomy and Space Sciences
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• 제27권4호
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• pp.407-412
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• 2010

Software reusability is one of key factors which impacts cost and schedule on a software development project. It is very crucial also in satellite simulator development since there are many commercial simulator models related to satellite and dynamics. If these models can be used in another simulator platform, great deal of confidence and cost/schedule reduction would be achieved. Simulation model portability (SMP) is maintained by European Space Agency and many models compatible with SMP/simulation model interface (SMI) are available. Korea Aerospace Research Institute (KARI) is developing hardware abstraction layer (HAL) supported satellite simulator to verify on-board software of satellite. From above reasons, KARI wants to port these SMI compatible models to the HAL supported satellite simulator. To port these SMI compatible models to the HAL supported satellite simulator, simulation scheduler is preliminary designed according to the SMI standard.

• 전기학회논문지P
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• 제55권4호
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• pp.183-189
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• 2006

In this work, the digital simulator for testing of digital protective relay is presented. The proposed simulator software has EMTP simulation data file conversion, sequence waveform generation, user define simulation data generation, communication engine, data analysis engine and measurements function etc. The simulator hardware is designed using 32bit floating point DSP architecture to achieve flexibility and high speed operation. This simulator is tested to evaluate the performance of relay simulator by using a output data of simulation model on EMTP.

• ETRI Journal
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• 제8권1호
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• pp.44-52
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• 1986

The main features of HILO-3 logic simulator are introduced. It is regarded as one of the most powerful logic simulator available now in electronic industry. The major functions and concepts are reviewed with some examples; circuit description using HDL (Hardware Description Language), waveform description using WDL (Waveform Description Language) and fault-free simulation for static RAM circuit. This program is expected to help the system designers, integrated circuit designers and test engineers.

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 1999년도 춘계학술발표회논문집
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• pp.7-17
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• 1999

가상 현실 기술을 적용한 선박 시뮬레이터 시스템의 설계 기법에 관하여 기술한다. 일반적으로 선박은, 선장, 항해사, 도선사, 조타수 등의 다중 작업자에 의해 조종된다. 이 연구에서는 이러한 선박의 특수 환경을 고려하여 가상 현실 선박 시뮬레이터에 적합한 다중 크라이언트-서버 네트워크와 하드웨어 구성을 제안하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.1589-1590
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• 2007

본 논문에서는 대체에너지 발전시스템이 포함되는 복합발전시스템의 구성 및 운전 특성 등을 분석하고 종합적인 엔지니어링 기술 확보에 필요한 Hardware-in-the-loop(HIL) Simulator의 구조를 제시하며 이를 효율적으로 제어할 수 있는 운영 소프트웨어를 개발하였다. 개발된 HIL Simulator는 복합발전 시스템을 구성하는 서브시스템의 제어기를 설계하는데 유용하게 사용할 수 있다.