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  • 1
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    Research on the Economic Allocation Method of High-Penetrated Distributed Generations for Smoothing the Power Fluctuation of Active Distribution Network (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-06-16
    Description: With the increasing penetration of DG and electric vehicles in distribution network, ADN gradually takes the place of traditional distribution network, which also brings higher requirements to the configuration of distributed ESS; In this paper, we mainly discuss the problem of how to optimize the capacity of wind/photovoltaic/energy storage in ADN with high penetration of DG when the total power connected to the grid of DG is fixed, in order to realize the harmonization of the economic and stable operation in power grid. Firstly, the hybrid system is analysed, which demonstrated the feasibility and rationality of proposed scheme. Secondly, being in distributed network investors’ shoes and considering the constraints of distributed network, DG and ESS, the wind/photovoltaic/energy storage capacity configuration bi-level optimization model is established with the objective function of maximum annual income and minimum fluctuation of DG output power. Then the genetic algorithm is ...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 2
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    Improved algorithm for hyperspectral data dimension determination (2017)
    Institute of Physics (IOP)
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    Publication Date: 2017-03-08
    Description: The correlation between adjacent bands of hyperspectral image data is relatively strong. However, signal coexists with noise and the HySime (hyperspectral signal identification by minimum error) algorithm which is based on the principle of least squares is designed to calculate the estimated noise value and the estimated signal correlation matrix value. The algorithm is effective with accurate noise value but ineffective with estimated noise value obtained from spectral dimension reduction and de-correlation process. This paper proposes an improved HySime algorithm based on noise whitening process. It carries out the noise whitening, instead of removing noise pixel by pixel, process on the original data first, obtains the noise covariance matrix estimated value accurately, and uses the HySime algorithm to calculate the signal correlation matrix value in order to improve the precision of results. With simulated as well as real data experiments in this paper, results show that: fi...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 3
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    Studies on the aerogenesis effect of different proportioned straw and pig manure blend fermentation (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-09-01
    Description: Sugarcane leaves, banana stems and pineapple stem leaves were used as raw material to research the aerogenesis effect and influence of different proportioned straw and pig manure blend fermentation. Research result showed that multi-straw different proportioned blend fermentation could shorten fermentation period. Under the condition of same fermentation temperature and time, the max total gas output 17040.58mL can be obtained by mainly using pineapple stem leaves with sugarcane leaves for blend fermentation with weight ratio of 1:4:1, with no addition of pig manure, inoculum 30% and dry material concentration 20%. Under the same condition, the total gas output of experiment group with straws containing pineapple stems leaves is higher than the group without pineapple leave residue. Research result provided theoretical basis for the actual application of various crop straws’ blend fermentation methane-producing.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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