Autor: Ju, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study on electric spring control method considering noncritical load voltage constraint
Autorzy:: Chen, Y.
Ma, G.
Xu, U.
Zhang, H.
Ju, R.
Powiązania:: https://bibliotekanauki.pl/articles/140516.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: electric spring
noncritical load
voltage excursion
reactive power compensation
Opis:: With the increasing penetration rate of grid-connected renewable energy generation, the problem of grid voltage excursion becomes an important issue that needs to be solved urgently. As a new type of voltage regulation control method, electric spring (ES) can alleviate the fluctuations of renewable energy output effectively. In this paper, the background and basic principle of the electric spring are introduced firstly. Then, considering the influence of an electric spring on noncritical load voltage, noncritical loads are classified reasonably, and based on the electric spring phasor diagram, the control method to meet the noncritical load voltage constraint is proposed. This control method can meet the requirements of voltage excursions of different kinds of noncritical load, increase the connection capacity of the noncritical load and improve the voltage stabilization capacity of the electric spring. Finally, through the simulation case, the feasibility and validity of electric spring theory and the proposed control method are verified.
Źródło:: Archives of Electrical Engineering; 2018, 67, 4; 709-724
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Study on the impact of electric vehicle charging load on nodal voltage deviation
Autorzy:: Ma, G.
Jiang, L.
Chen, Y.
Dai, C.
Ju, R.
Powiązania:: https://bibliotekanauki.pl/articles/141119.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: distribution network
electric vehicle charging load (EVCL)
stochastic load
voltage deviation
Opis:: The promotion and application of electric vehicles will contribute to the solution of several problems, such as energy shortage and environmental pollution, and the achievement of country economy and energy security. But a large-scale vehicle-to-grid system may cause adverse effects in the distribution network operation, the power network planning and such other parts. First, this paper collects the factors that influence the electric vehicle charging load and establishes the EV charging load model with a Monte- Carlo method. Then, we analyze the effect that the EV charging load made on the nodal voltage deviation under different permeability based on the IEEE30 node system. At last, this research gets the conclusion that the nodal voltage deviation is closely related to EV permeability, node type and node location. This research conclusion will provide practical guidance to the charging station planning.
Źródło:: Archives of Electrical Engineering; 2017, 66, 3; 495-505
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Issledovanie termodrevesiny berezy i sosny na biostojjkost
Badanie bioodporności drewna brzozy i sosny modyfikowanego termicznie
Autorzy:: Safin, R.R.
Razumov, E.Ju.
Beljakova, E.A.
Nazipova, F.V.
Powiązania:: https://bibliotekanauki.pl/articles/8947.pdf
Data publikacji:: 2014
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: birch wood
pine wood
biological stability
thermal modification
structural change
Źródło:: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2014, 87
1898-5912
Pojawia się w:: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Phase Diagrams of the MeNQ/HN and HN/NQ Binary Systems
Autorzy:: Tian, M.-M.
Li, H.-R.
Chen, L.
Ju, X.
Shu, Y.-J.
Powiązania:: https://bibliotekanauki.pl/articles/358436.pdf
Data publikacji:: 2015
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:: phase diagram
binary system
eutectic
DSC
XRD
Opis:: An equation for a binary phase diagram with two eutectic points was deduced from the Van’t Hoff equation. The melting points of hydrazinium nitrate/ nitroguanidine (HN/NQ) samples with different ratios, ranging from 0 to 1 mole fraction, were explored by differential scanning calorimetry (DSC). The results revealed the presence of two eutectic points in the phase diagram of the HN/NQ binary system. The dependence of temperature on the composition (T-X phase diagram) of HN/NQ was depicted based on the equation described by the DSC data. The phase diagram of MeNQ/HN, with only one eutectic point was constructed by substituting experimental data of the compositions and their corresponding temperatures into the Van’t Hoff equation. The phase diagram with two or more eutectic points indicated the formation of new stable compounds with appropriate ratios of the two components; no new substance appeared in the system with only one eutectic point. Thus, the HN/NQ binary system showed the presence of a new substance, which is probably the HN/NQ co-crystal. No new substance was detected in the MeNQ/HN binary system. The results of the X-ray diffraction patterns agree with the findings from the phase diagrams.
Źródło:: Central European Journal of Energetic Materials; 2015, 12, 2; 271-286
1733-7178
Pojawia się w:: Central European Journal of Energetic Materials
Dostawca treści:: Biblioteka Nauki

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