• Title/Summary/Keyword: HIL 시뮬레이션

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Development of FPGA Based HIL Simulator for PMS Performance Verification of Natural Liquefied Gas Carriers (액화천연가스운반선의 PMS 성능 검증을 위한 FPGA 기반 HIL 시뮬레이터 개발)

  • Lee, Kwangkook
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.7
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    • pp.949-955
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    • 2018
  • Hardware-in-the-loop (HIL) simulation is a technique that can be employed for developing and testing complex real-time embedded systems. HIL simulation provides an effective platform for verifying power management system (PMS) performance of liquefied natural gas carriers, which are high value-added vessels such as offshore plants. However, HIL tests conducted by research institutes, including domestic shipyards, can be protracted. To address the said issue, this study proposes a field programmable gate array (FPGA) based PMS-HIL simulator that comprises a power supply, consumer, control console, and main switchboard. The proposed HIL simulation platform incorporated actual equipment data while conducting load sharing PMS tests. The proposed system was verified through symmetric, asymmetric, and fixed load sharing tests. The proposed system can thus potentially replace the standard factory acceptance tests. Furthermore, the proposed simulator can be helpful in developing additional systems for vessel automation and autonomous operation, including the development of energy management systems.

Study of Drone HIL Simulation Technique Extension Using Log of External Sensor (외부 센서의 로그를 활용한 드론 HIL 시뮬레이션 기법 확장 연구)

  • Kim, Deok Yeop;Seo, Kang Bok;Lee, Gwoncheol;Lee, Woo-Jin
    • Proceedings of the Korea Information Processing Society Conference
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    • 2019.05a
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    • pp.342-345
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    • 2019
  • 드론의 동작 검증을 위한 테스트는 최종적으로 드론이 운용될 환경에서 이루어진다. 그러나 테스트 비용이 크고 테스트 비행 중 파손의 위험이 있기 때문에 시뮬레이션을 통한 사전 검증을 수행하는 것이 중요하다. 시뮬레이션은 SIL 방식이나 HIL 방식으로 이루어지는데 추가적인 외부 센서를 활용하는 경우 검증하기가 어렵다. SIL에서는 검증을 위해 가상의 외부 센서 구현이 필요하다. HIL 에서는 실제 센서를 사용하므로 가상의 외부 센서 구현은 필요 없다. 그러나 테스트 환경이기 때문에 실제 환경과 비슷한 데이터나 동작 검증에 적합한 데이터를 얻기 어렵다. 이러한 HIL에서의 문제를 해결하기 위해 외부 센서를 실제 환경에서 사용한 로그나 테스트 환경에서 센서 검증에 사용한 로그를 이용할 수 있다. 본 논문에서 제안하는 외부 센서의 로그를 활용한 HIL 시뮬레이션 기법 확장 내용은 외부 센서 데이터 입력기가 로그로부터 얻은 센서 데이터를 비행 컨트롤러로 보내 검증을 수행하기 때문에 데이터를 재사용할 수 있고 테스트 비용을 줄일 수 있다. 또 외부 센서 데이터 입력기는 로그 파서, 뷰어, 슬라이서, 데이터 전송기로 구성되어 로그로부터 검증에 적합한 데이터를 쉽게 얻어 활용할 수 있다.

Implementation of HIL Method to Analyze Driving Characteristic of Hybrid Electric Vehicle (하이브리드 자동차 구동 특성 분석을 위한 HIL 방식의 구현)

  • Oh, Sung Chul
    • The Journal of Korean Institute for Practical Engineering Education
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    • v.3 no.2
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    • pp.100-105
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    • 2011
  • By adopting HIL(Hardware-in-the-Loop), component characteristics in vehicle environment can be obtained without implementing component in the vehicle. In this paper, when specific motor is adopted as traction motor in hybrid electric vehicle HIL implementation procedures are explained. In order to implement HIL method motor testing. vehicle performance simulator and load characteristic are explained. Vehicle controller used in simulator is directly uploaded in real controller. Especially as a load dynamometer actively controlled motor system is used without connecting conventional mechanical inertia. Motor characteristics are obtained using HIL implementation when test motor is used as a traction motor for parallel hybrid electric vehicle. Proposed method can be used as experimental equipment to educate driving characteristics of hybrid electric vehicle.

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A Preliminary Development of Real-Time Hardware-in-the-Loop Simulation Testbed for the Satellite Formation Flying Navigation and Orbit Control (편대비행위성의 항법 및 궤도제어를 위한 실시간 Hardware-In-the-Loop 시뮬레이션 테스트베드 초기 설계)

  • Park, Jae-Ik;Park, Han-Earl;Shim, Sun-Hwa;Park, Sang-Young;Choi, Kyu-Hong
    • Journal of Astronomy and Space Sciences
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    • v.26 no.1
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    • pp.99-110
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    • 2009
  • The main purpose of the current research is to developments a real-time Hardware In-the-Loop (HIL) simulation testbed for the satellite formation flying navigation and orbit control. The HIL simulation testbed is integrated for demonstrations and evaluations of navigation and orbit control algorithms. The HIL simulation testbed is composed of Environment computer, GPS simulator, Flight computer and Visualization computer system. GPS measurements are generated by a SPIRENT GSS6560 multi-channel RF simulator to produce pseudorange, carrier phase measurements. The measurement date are transferred to Satrec Intiative space borne GPS receiver and exchanged by the flight computer system and subsequently processed in a navigation filter to generate relative or absolute state estimates. These results are fed into control algorithm to generate orbit controls required to maintain the formation. These maneuvers are informed to environment computer system to build a close simulation loop. In this paper, the overall design of the HIL simulation testbed for the satellite formation flying navigation and control is presented. Each component of the testbed is then described. Finally, a LEO formation navigation and control simulation is demonstrated by using virtual scenario.

Virtual Environment Hardware-In-the-Loop Simulation for Verification of OHT Controller (OHT 제어기 검증을 위한 가상환경 HIL 시뮬레이션)

  • Lee, Kwan Woo;Lee, Woong Geun;Park, Sang Chul
    • Journal of the Korea Society for Simulation
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    • v.28 no.4
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    • pp.11-20
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    • 2019
  • This paper presents a HILS(Hardware-In-the-Loop Simulation) approach for the verification of the OHT (Overhead Hoist Transport) controller in a semiconductor FAB. Since hundreds of OHTs can run simultaneously on the OHT network of a FAB, the full verification of the OHT controller is very essential to guarantee the stableness of the material handling system. The controller needs to fully consider not only normal situations but also abnormal situations that are difficult to predict. For the verification of the controller, we propose a HILS approach using a virtual environment including OHTs on a rail network, which can generate abnormal situations. The proposed HILS approach has been implemented and tested with various examples.

Response Characteristics of the HIL System for Passenger Diesel Engine (승용 디젤엔진 HIL 시스템의 응답 특성)

  • Chung, Jin-Eun;Roh, Ho-Jong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.11
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    • pp.4745-4750
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    • 2011
  • A HIL(hardware-in-the-loop) system was established and the simulation was carried out to determine whether the system operates normally. The system consists of turbocharger test bench, HIL platform with real time S/W and DAQ, and engine model using Matlab/Simulink. In the simulation the supplied fuel rate is changed step-by-step from 1.8944 kg/h to 4.7360 kg/h. The change of air-fuel ratio is analyzed and observed whether the air-fuel ratio follow the target air-fuel ratio 32. When the supplied fuel rate is changed, the air-fuel ratio is converged to the target air-fuel ratio after about 20 seconds. And the vane duty ratio of turbine and the boost pressure of compressor are also changed properly. Therefore this HIL system can be used to develop the new turbocharger and improve the performance of the modified turbocharger.

HIL Simulation of Power Management for Standalone DC Microgrids Based on Decentralized Control (분산제어 기반 독립형 직류 마이크로그리드 전력관리시스템의 HIL 시뮬레이션)

  • To, Dinh Du;Le, Duc Dung;Lee, Dong-Choon
    • Proceedings of the KIPE Conference
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    • 2018.07a
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    • pp.376-377
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    • 2018
  • A hardware-in-the-loop (HIL) platform for a power management control of islanded DC microgrids is established. In order to avoid the complexity and high costs, a decentralized control based on the DC Bus Signaling (DBS) method is applied to the HIL system. The simulation results for the HIL microgrid platform have verified the effectiveness of power management strategy.

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Circuit Design Method to Solve the Processing Error and the Processing Speed Decreasing Problems in Multi-core Hardware In-the-Loop Simulation (Hardware In-the-Loop Simulation의 다중 코어 연산시 발생할 수 있는 연산 오류 및 연산속도 저하를 해결하기 위한 회로 구성 기법 제안)

  • CHAE, BEOM-SEOK;JEON, JAE-HYUN;KIM, KYUNG-SUE;OH, HYUN-SEOK;PARK, CHEOL-HYUN;LEE, JEONG-JOON
    • Proceedings of the KIPE Conference
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    • 2020.08a
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    • pp.421-422
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    • 2020
  • Hardware In-the-Loop simulation(HIL)은 실제 하드웨어 시스템을 실시간 모사할 수 있는 시뮬레이션 장비로 연구 및 개발 기간의 단축, 비용저감 등의 장점을 앞세워 다양한 전력전자 분야에 사용되고 있다. 실제 하드웨어를 그대로 모사하는 것이 HIL의 목적이기 때문에 HIL 장비는 검증의 실시간성과 출력된 결과의 정확성이 무엇보다도 중요하다고 할 수 있다. 하지만 코어간의 데이터를 주고받는 과정에서 HIL의 연산 속도 및 정확성을 저해하는 요인들이 발생하게 된다. 본 연구에서는 HIL 장비를 이용해 복잡한 시스템을 구현함에 있어서 연산속도 및 정확성을 저해하는 요인들을 찾아내고 이를 해결하기 위한 방법을 제안한다. 제안된 연산속도 개선 및 정확성 개선 방법의 타당성은 프로세서의 연산 속도 변화량, HIL 및 시험 결과 파형의 비교 분석을 통해 검증되었다.

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