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DC-bus voltage control is an important task in the operation of a dc or a hybrid ac/dc microgrid system. To improve the dc-bus voltage control dynamics, traditional approaches attempt to measure and feedforward the load or source power in the dc-bus control scheme. However, in a microgrid system with distributed dc sources and loads, the traditional feedforward-based methods need remote measurement...
Because of large fluctuations and strong randomness of active power generated by renewable energy resources, taking into account the constraints such as battery life cycle, a new battery energy storage system control method based on real-time state-of-charge and variable filter time constant is presented. This method could compensate the fluctuation composition of a particular frequency band of power...
Microgrid technology, becoming the main application form of distributed generation with high permeability, can effectively alleviate the impacts on large power grid of distributed generation. Microgrid system, as the carrier of microgrid control strategy, can provide verification platform for the research of microgrid control strategy. In this paper, an integrated microgrid system with flexible structure...
In this paper, a fast hardware implementation of multiplicative inversion in GF(2m) using the optimal normal basis of type II is presented. The approach followed is based on the Sunar-Koc multiplier and the Itoh-Tsujii algorithm. Our design is able to compute multiplicative inversion in GF(2233) using only 26 clock cycles.
Dual mode running characters and grid-connected technology with two different structured micro turbines (MT) are compared and analyzed respectively in this paper. Firstly, the operating modes of MT are introduced briefly. Then operating characters and influence on traditional system protection are analyzed while MTs are connecting to the grid. The different dual mode schemes are compared via simulating...
A micro-grid can increase the reliability of energy supplies by disconnecting from the grid in the case of network faults or reduced power quality. The techniques that have been investigated to control micro-grids in both modes are summarized as well as those proposed to maintain stability during the transitions from one mode to the other. This paper first introduces the micro-grid planning structure...
Based on constructing different types of distributed generations and energy storage equipments, this paper simulated the dynamical characteristics of MicroGrid with several operating modes under peer to peer control strategy. Two cases were used to analyze the role of storage equipment in MicroGrid. If micro turbine generation with traditional synchronization generator was used in MicroGrid as the...
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