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DC Microgrid: A Comprehensive Review on Protection Challenges and Schemes
IETE Technical Review, 2022The development of microgrids can prove to be a game changer in the realization of future smart grids. The increasing trends of automation in domestic loads and smart homes have increased the penetration of DC loads at the distribution level.
K. Kant, O. Gupta
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Unit Protection of Tapped Line DC Microgrid
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022DC microgrids are attractive options for being more efficient and less complex than ac microgrids. Several protection methods exist for ring main and radial dc microgrid architecture, but the development of protection techniques for tapped line-based dc ...
G. K. Rao, P. Jena
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Resilient Protection of Medium Voltage DC Microgrids Against Cyber Intrusion
IEEE Transactions on Power Delivery, 2022Differential current protection has been a reliable approach for line protection in DC systems. However, due to its dependence on communication for terminal current information, resiliency of such a protection approach is poor against external cyber ...
Vaibhav Nougain +2 more
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Overload protection in digitally controlled DC-DC converters
2006 37th IEEE Power Electronics Specialists Conference, 2006This paper presents an approach to overload protection based on a predictive average current-mode control technique for digitally controlled DC-DC switched-mode power supplies. The proposed approach can be applied in voltage-mode or current-mode control architectures. The current limit, the converter actions upon detecting an overload, and the shape of
Hao Peng, Dragan Maksimovic
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A Г-Source Circuit Breaker for DC Microgrid Protection
IEEE transactions on industrial electronics (1982. Print), 2021In this article, a novel Г-source circuit breaker (CB) that can offer automatic fault isolation with no reflected fault current in the feeding source is proposed for the protection of dc microgrids.
Zhongzheng Zhou +4 more
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High gain DC-DC converter with protection circuit
2011 International Conference on Energy, Automation and Signal, 2011This paper proposes a method to obtain a protected voltage gain by employing a protection circuit for the voltage doubler or multiplier circuit in an isolated tyde DC-DC Converter. The entire set up consists of a phase shift converter with a protected bridge/voltage doubler rectifier on the output side.
P. D. Dharmesh, D. Elangovan
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A DC Fault Protection Scheme for MMC-HVDC Grids Using New Directional Criterion
IEEE Transactions on Power Delivery, 2021To meet the ultra-fast, selective, and reliable requirements of the DC fault protection, a protection scheme for modular multilevel converter based HVDC grids is proposed in this paper.
Xiuyong Yu, Liye Xiao
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Novel Bidirectional O-Z-Source Circuit Breaker for DC Microgrid Protection
IEEE transactions on power electronics, 2021DC microgrids that feature a simple and efficient integration with renewable energy sources and energy storage elements have drawn increasing attention in industrial applications. In this article, a bidirectional Z-source circuit breaker with an O-shaped
Zhongzheng Zhou +4 more
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Research on DC Line Protection
2014 International Symposium on Computer, Consumer and Control, 2014As the main protection of high voltage direct current (HVDC), the traveling wave protection is not easily affected by the resistance and capacitance of the transmission line, but there are still some shortcomings. This article not only briefly analyses some the traveling wave protection method based on wavelet transform and mathematical morphology, but
Zhouxing Fu +4 more
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AC/DC railway electrification and protection
9th IET Professional Development Course on Electric Traction Systems, 2006The technical strength of all electrification schemes lies in the fact that the prime mover is removed from the train; but this is also its economic weakness. By taking power from a distribution network there is almost unlimited power available which has been efficiently produced but the cost of providing the fixed installations can only be justified ...
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