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High conversion efficiency is always desired in energy storage device (ESD). In this work a high efficiency GaN and Si device mixed isolated bidirectional dc-dc converter is proposed in the distributed ESD application. To optimize the efficiency of the bidirectional half-bridge push-pull active clamp converter over a wide input/output voltage and load range, it is necessary to accurately predict the...
This paper focuses on the design and control of a stationary energy storage system based on multiple modular high voltage battery modules. The system achieves bi-directional power flow directly from 400V dc grid to the 12V battery modules via a bi-directional dc-dc converter with high conversion ratio as an interface. One merit of such a system is its extensibility and scalability for higher power...
The basic knowledge of virtual reality and virtual instrument technique were introduced. According to the present safety conditions of foundation excavation, the support monitoring system of foundation excavation is put forward. With Windows and Lab VIEW technologies, the support monitoring system of foundation excavation is developed, which is integrated with data automatically collecting, information...
To address this problem of bounded rationality of resource consumers, an evolutionary algorithm for grid resource allocation is proposed in this paper. Firstly, the problem of multiple users competing for a common resource is formulated as a symmetric game. Secondly, replicated dynamic mechanism is used to produce evolutionary stable point that leads to a satisfied allocation scenario. Finally, the...
The MAODV (Multicast Ad hoc On-demand Vector) routing protocol shows a smooth performance in light load ad hoc networks. However, as the network loads increase, the Quality of service (QoS) will be degraded quickly. A MAODV-based multipath routing algorithm, namely MP-MAODV, is presented, which distributes traffic through two node-disjoint routes to improve network efficiency and balances the network...
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