Abstract
In order to evaluate and validate the latest trends of power-hardware-in-loop (PHIL) test setup, the dc-dc buck converter is modelled within a real-time system where the simulation model of the converter is exported to FPGA NI PXIe with a time step of 250 ns. PHIL setup allows high flexibility, the benefit of graphical programming, and advanced investigation of the control system for a converter without any safety concern and with the possibility of testing against situations that rarely occur in the field. The LabVIEW-FPGA has been used as a prototyping environment for a digital controller with the help of OPAL-RT eHS software and NI hardware. Such collaboration enables other software such as MATLAB/Simulink, Multisim, PLECS, PSIM, and LabVIEW Co-simulation for accelerating innovative research and development. This research work presents a more efficient and effectual NI PXIE platform with at least ten times more FPGA capability. This paper highlights the hardware-software toolset’s performance and the proposed methodology by addressing regulation issues in dc-dc converters. For more satisfactory and reliable operation real-time simulation study of a dc-dc buck converter is evaluated at different parametric variations under the closed-loop PI controller. Finally, the executed model’s effectiveness for a closed loop buck converter with real DC loads is validated through the hardware-in-loop (HIL) laboratory setup.
Highlights
Offline simulation has been used extensively to investigate the performance of an electrical system because of its minimal effort and low cost
The main contribution of this paper is to present an FPGA-based HIL/Rapid Control Prototyping (RCP) simulation where a simulated plant is connected to a physical controller, which can be implemented on a real-time emulator without the implementation of an actual hardware plant
The actual controller is exported to compact RIO, and the converter model is deployed on the PXIe platform
Summary
Offline simulation has been used extensively to investigate the performance of an electrical system because of its minimal effort and low cost. Offline simulation does not replicate the real behavior of the electrical system. Digital real-time simulation (DRTS) of the electrical system is the replication of output (voltage/currents), with the required precision, which symbolizes the response of the real system being modeled [3]. The technology of power electronics is developing complex and multi-disciplinary field of electrical engineering. The primary reason behind this is an advancement in power semiconductor devices. This development trend in power electronics makes new challenges to the conventional power system and power electronic engineers [4]. HIL investigation permits the model of a novel device to be examined under a broad scope of realistic conditions repeatedly, securely, and economically
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