Real-Time HIL Simulation of the Discontinuous Conduction Mode in Voltage Source PWM Power Converters

András Futó; Tamás Kökényesi; István Varjasi; Zoltán Sütő; István Vajk; Attila Balogh; Gergely György Balázs

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자료유형: 학술저널

저자정보: András Futó (Budapest University of Technology and Economics) Tamás Kökényesi (Budapest University of Technology and Economics) István Varjasi (Budapest University of Technology and Economics) Zoltán Sütő (Budapest University of Technology and Economics) István Vajk (Budapest University of Technology and Economics) Attila Balogh (Budapest University of Technology and Economics) Gergely György Balázs (Siemens Zrt)

저널정보: 전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.17 No.6

발행연도: 2017.11

수록면: 1,535 - 1,544 (10page)

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Advances in FPGA technology have enabled fast real-time simulation of power converters, filters and loads. FPGA based HIL (Hardware-In-the-Loop) simulators have revolutionized control hardware and software development for power electronics. Common time step sizes in the order of 100ns are sufficient for simulating switching frequency current and voltage ripples. In order to keep the time step as small as possible, ideal switching function models are often used to simulate the phase legs. This often produces inferior results when simulating the discontinuous conduction mode (DCM) and disabled operational states. Therefore, the corresponding measurement and protection units cannot be tested properly. This paper describes a new solution for this problem utilizing a discrete-time PI controller. The PI controller simulates the proper DC and low frequency AC components of the phase leg voltage during disabled operation. It also retains the advantage of fast real-time execution of switch-based models when an accurate simulation of high frequency junction capacitor oscillations is not necessary.

#Discontinuous Conduction Mode (DCM) #Field-Programmable Gate Array (FPGA) #Hardware-In-the-Loop (HIL) #Power converter #Real-time #Simulation

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