Results 91 to 100 of about 266,617 (137)
Restart progress of fault in UHVDC after blocking
The Journal of Engineering, 2019 In order to reduce the impact of bipolar blocking on grid stability of restoration and restart process, a unipolar blocking caused by fires in Jin Su ultra-high voltage direct current (UHVDC) as background was taken, using real time digital simulator ...
Peng Wei +3 more
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Reverse-blocking modular multilevel converter for battery energy storage systems
Journal of Modern Power Systems and Clean Energy, 2017 Energy storage systems with multilevel converters play an important role in modern electric power systems with large-scale renewable energy integration.
Xiaofeng YANG +6 more
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Recovering DC Coefficients in Block-Based DCT
IEEE Transactions on Image Processing, 2006 It is a common approach for JPEG and MPEG encryption systems to provide higher protection for dc coefficients and less protection for ac coefficients. Some authors have employed a cryptographic encryption algorithm for the dc coefficients and left the ac coefficients to techniques based on random permutation lists which are known to be weak against ...
Uehara, Takeyuki +2 more
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Research on the control strategy of multi-port DC/DC energy router for the energy Internet
物联网学报, 2020 The characteristics and shortcomings of the current multi-port direct current (DC) to DC (DC/DC) energy router were analyzed.A multi-port DC/DC energy router for the energy Internet was optimized and designed.Through the analysis of the operating voltage
Wenzhong MA +7 more
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Thyristor-Inserted MMC Sub-Module Topology with DC Fault Blocking Capability
CSEE Journal of Power and Energy SystemsModular multilevel converter (MMC) is increasingly being applied to high voltage direct current (HVDC) systems. However, dc short circuit situations restrain the application of a conventional half bridge MMC system.
Cheng Peng, Rui Li, Xu Cai
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Using the separated commutation in two-stage dc/dc converter in order to reduce of the power semiconductor switches’ dynamic losses [PDF]
, 2014 Для двухзвенных преобразователей постоянного напряжения в постоянное производится развитие алгоритмов и схемных реализаций принципа разделенной коммутации, применение которых обеспечивает естественное и мягкое бездиссипативное снабберное переключение ...
Блинов, Андрей +7 more
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Compact Planar Microwave Blocking Filter [PDF]
This paper proposes a technique to design a compact planar broadband microwave blocking filter. The filter is constructed from multiple sections of bandstop filters with means to control radiation loss. As a result, the filter has small physical size and
U-yen, Kongpop, Wollack, Edward J.
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Analysis of a trunk reservation policy in the framework of fog computing
, 2016 We analyze in this paper a system composed of two data centers with limited capacity in terms of servers. When one request for a single server is blocked at the first data center, this request is forwarded to the second one.
Guillemin, Fabrice, Thompson, Guilherme
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Compact broadband DC-block filter
2014 IEEE International Conference on Communiction Problem-solving, 2014A compact DC-block broadband filter has been designed and fabricated with a simple and efficient evolutionary design process in this paper. The DC-block filter is based on parallel-coupled three-line structure which can realize a stronger coupling coefficient to reduce the stringent requirements of the line width and spacing comparing to the ...
Wei Zhao +5 more
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