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http://dx.doi.org/10.6113/TKPE.2021.26.1.16

Performance Comparison of Different Solar Array Simulator Control by Ellipse Approximation  

Wellawatta, Thusitha (School of Electrical Engineering, University of Ulsan)
Seo, Young-Tae (Automotive System Verification Dept., HEV System Analysis Team. SureSoftTech)
Choi, Sung-Jin (School of Electrical Engineering, University of Ulsan)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.26, no.1, 2021 , pp. 16-24 More about this Journal
Abstract
Solar array simulator (SAS) is essential equipment in testing and evaluating the power processing performance of a power conditioning system. However, the nonlinearity in the current(I)-voltage(V) characteristic makes the control loop design of SAS a challenging task. Conventionally, only the inner loop is usually considered in the control design approach. However, this study proves that the reference generation loop also interacts with the inner loop and plays a key role in the overall performance of the SAS. In this paper, the performance of voltage-mode control and impedance control, which are two of the most popular architectures for the SAS system, are reviewed and compared by multi-loop analysis.
Keywords
PV model; Solar array simulator; Small signal analysis; Multi-loop control;
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