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Energies 2018, 11(10), 2682; https://doi.org/10.3390/en11102682

Applications of Digital-Physical Hybrid Real-Time Simulation Platform in Power Systems

1
State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
2
Electric Power Research Institute of Guangdong Power Grid Co. Ltd., Guangdong Province Key Laboratory of Smart Grid Technology, Guangzhou 510080, China
*
Author to whom correspondence should be addressed.
Received: 21 September 2018 / Revised: 2 October 2018 / Accepted: 4 October 2018 / Published: 9 October 2018
(This article belongs to the Section Electrical Power and Energy System)
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Abstract

Digital-physical hybrid real-time simulation (hybrid simulation) platform integrates the advantages of both digital simulation and physical simulation by combining the physical simulation laboratory and the real-time digital simulator. Based on a 400 V/50 kVA hybrid simulation platform with 500 kVA short-circuit capacity, the hybrid simulation methodology and a Hausdorff distance based accuracy evaluation method are proposed. The case validation of power system fault recurrence is performed through this platform, and the stability and accuracy are further validated by comparing the hybrid simulation waveform and field-recorded waveform and by evaluating the accuracy with the proposed error index. Two typical application scenarios in power systems are studied subsequently. The static var generator testing shows the hybrid simulation platform can provide system-level testing conditions for power electronics equipment conveniently. The low-voltage ride through standard testing of a photovoltaic inverter indicates that the hybrid simulation platform can be also used for voltage standard testing for various power system apparatus with low cost. With this hybrid simulation platform, the power system simulation and equipment testing can be implemented with many advantages, such as short period of modelling, flexible modification of parameter and network, low cost, and low risk. Based on this powerful tool platform, there will be more application scenarios in future power systems. View Full-Text
Keywords: digital-physical hybrid real-time simulation; accuracy evaluation; equipment testing; fault recurrence; power hardware-in-the-loop (PHIL); power system-in-the-loop (PSIL) digital-physical hybrid real-time simulation; accuracy evaluation; equipment testing; fault recurrence; power hardware-in-the-loop (PHIL); power system-in-the-loop (PSIL)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Leng, F.; Mao, C.; Wang, D.; An, R.; Zhang, Y.; Zhao, Y.; Cai, L.; Tian, J. Applications of Digital-Physical Hybrid Real-Time Simulation Platform in Power Systems. Energies 2018, 11, 2682.

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