Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Wang, Dan" wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-13 z 13
    Tytuł:
    Three-dimensional underwater path planning based on modified potential field algorithm in time-varying current
    Autorzy:
    Wang, Shasha
    Feng, Guilin
    Wang, Dan
    Tuo, Yulong
    Powiązania:
    https://bibliotekanauki.pl/articles/32917893.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    AUV
    3D underwater path planning
    time-varying current
    modified artificial potential field
    velocity synthesis
    Opis:
    The article addresses the three-dimensional (3D) underwater path planning problem of an autonomous underwater vehicle (AUV) in a time-varying current. A modified artificial potential field algorithm combining the velocity vector synthesis method is proposed to search for the optimal path. The modified potential field (MPF) algorithm is designed to dynamically plan the non-collision path. Meanwhile, this modified method is also proved to be an effective solution to the goals not reachable with obstacles nearby (GNRON), U-shaped trap, and rotation unreachable problems. To offset the influence of time-varying current, the velocity synthesis approach is designed to adjust the AUV movement direction. Besides, considering path planning in the complex underwater environment, the multi-beam forward-looking sonar (FLS) model is used. Finally, simulation studies substantiate that the designed algorithm can implement the AUV path planning effectively and successfully in a 3D underwater environment.
    Źródło:
    Polish Maritime Research; 2023, 1; 33-42
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hsa-miR-331-3p inhibits VHL expression by directly targeting its mRNA 3-UTR in HCC cell lines
    Autorzy:
    Cao, Yiyi
    Zhang, Jinnan
    Xiong, Dongmei
    Wang, Dan
    Wu, Ting
    Huang, Ailong
    Tang, Hua
    Powiązania:
    https://bibliotekanauki.pl/articles/1039137.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    HCC
    HBV
    miRNA
    Hsa-miR-331-3p and VHL
    Opis:
    Dysregulation of miRNA is widely involved in human cancers, including hepatocellular carcinoma (HCC). Array data for miRNAs indicated that miR-331-3p might be one of the disorderly expressed miRNAs in HCC cell lines, but the function of miR-331-3p in HCC remains unclear. In this study, quantitative real time polymerase chain reaction (qRT-PCR) results indicated that miR-331-3p was up-regulated in HepG2.2.15 cells, Ad-HBV-HepG2 cells and pCH9/3091transfected SMMC7721 cells compared with their control group, respectively. miRNA target prediction software was used, and VHL was found to be one of the target genes of miR-331-3p. qRT-PCR and western blot analysis indicated VHL expression was decreased when miR-331-3p was over-expressed and increased when miR-331-3p was inhibited in SMMC7721 cells. The luciferase reporter activity was inhibited in SMMC7721 cells when co-transfected with miR-331-3p expression vector and VHL 3'-UTR wild type vector and increased in HepG2.2.15 transfected with miR-331-3p inhibitor compared to its control group respectively. When co-transfected with miR-331-3p expression vector and VHL 3'-UTR mutated type vector in SMMC7721 cells the luciferase reporter activity was recovered. All of these results show that HBV up-regulated miR-331-3p expression in HCC cell lines and miR-331-3p could inhibit VHL expression by directly targeting its 3'-UTR. This provided useful information in exploring the mechanism of HCC induced by HBV infection.
    Źródło:
    Acta Biochimica Polonica; 2015, 62, 1; 77-82
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vanadium rutin complex sensitizes breast cancer cells via modulation of p53/Bax/Bcl2/VEGF correlated with apoptotic events
    Autorzy:
    Haifeng, Zhu
    Yinghou, Wang
    Dan, Liu
    Xiuqing, Sun
    Furong, Wang
    Powiązania:
    https://bibliotekanauki.pl/articles/895635.pdf
    Data publikacji:
    2020-02-29
    Wydawca:
    Polskie Towarzystwo Farmaceutyczne
    Tematy:
    apoptosis
    Breast Cancer
    In vitro assessment
    DNA Binding
    Vanadium-rutin
    Opis:
    In pursuit of a novel approach in breast cancer therapy, we explored the ability of vanadium rutin complex to eradicate cancer by efficiently targeting various apoptotic pathways on human breast cancer cell lines. We provide direct proof of the chemotherapeutic potential of vanadium rutin complex by activating p-53 dependent intrinsic apoptosis and modulating the VEGF pathways. The complex was also capable of binding and cleaving CT-DNA at different concentration. The complex was able to inhibit cell viability at 100 and 150 µM doses in both MCF7 and MDA-MB-231 cells. Furthermore, the complex successfully initiated apoptosis in both cell lines by activating the p53 dependant intrinsic apoptotic pathway. In-vitro studies also established that the complex modulated p53, Bax, Bcl2 and VEGF expressions and induced DNA fragmentation in both the cell lines.
    Źródło:
    Acta Poloniae Pharmaceutica - Drug Research; 2020, 77, 1; 89-98
    0001-6837
    2353-5288
    Pojawia się w:
    Acta Poloniae Pharmaceutica - Drug Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dispersion of sodium phytate on muscovite and the implications for arsenopyrite flotation
    Autorzy:
    Zou, Dan
    Wang, Zhen
    Zhao, Kaile
    Xu, Ying
    Powiązania:
    https://bibliotekanauki.pl/articles/2175449.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    cassiterite
    chlorite
    sodium oleate
    carboxymethyl cellulose
    selective inhibition
    Opis:
    The effective flotation separation of sulfides and sliming silicate minerals is always a difficult problem. In this paper, the selective flotation of arsenopyrite from muscovite was studied by using sodium phytate (SP) as dispersant, and the mechanism was investigated through SEM/EDS, zeta potential, FTIR and XPS measurements. Single mineral flotation results showed that with the increasing isoamyl xanthate (IAX) dosage the recovery of arsenopyrite increased, until 8×10−5 mol/L IAX (79.40% recovery, pH=7), after that it decreased slightly. While muscovite floated poorly at any IAX concentration. For the mixed minerals, arsenopyrite recovery was only 54.63% while that of muscovite was 42.70%, which was attributed to the coverage of muscovite on arsenopyrite surface. When 6×10−5 mol/L SP was added into the mixed minerals system, the recovery of arsenopyrite recovered to 68.26% while that of muscovite was 8.48% (approximate the value of the single mineral). SEM/EDS results showed that SP could disperse muscovite and prevented its coverage on arsenopyrite surface. Zeta potential results showed that the electrokinetic potential of muscovite and arsenopyrite decrease from -26.60mV to -39.01 mV and from -26.90 mV to -27.84 mV at pH=7, respectively. It was obvious that the negatively charged phytate ions selectively adsorbed on the surface of muscovite. FTIR and XPS resulted co-proved the chemisorption of SP with active sites on muscovite while arsenopyrite spectrum did not change significantly, which was consistent with flotation and zeta potential results. The selective adsorption of SP on muscovite compared to arsenopyrite was responsible for the effective separation of them.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2022, 58, 6; art. no. 154951
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhancement of xanthate adsorption on chrysocolla surface via sodium diethyldithiocarbamate (DDTC) modification
    Autorzy:
    Liu, Dan
    Wang, Daqian
    Xian, Yongjun
    Tian, Xiaosong
    Wen, Shuming
    Powiązania:
    https://bibliotekanauki.pl/articles/2175423.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    chrysocolla
    flotation
    diethyldithiocarbamate
    modification
    activation
    Opis:
    Chrysocolla is a kind of copper oxide mineral which was difficult to float. In this study, Diethyldithiocarbamate (DDTC) was employed to modify the surface of chrysocolla to improve its xanthate adsorption and floatability. Flotation experiments showed that the DDTC exhibited ability to activate rather than acting as a collector for chrysocolla flotation. After DDTC activation, chrysocolla can be effectively recovered by xanthate. The activation mechanism of DDTC was investigated via Fourier transform infrared (FT-IR) spectroscopy and X-ray photoelectron spectroscopy (XPS). During the activation, DDTC bonded to the surface copper atoms of chrysocolla, and more Cu(II) species on the mineral surface were reduced to Cu(I) species, which caused the formation of larger amounts of Cu active sites as –N–C(=S)S–Cu(II)– and Cu(I) species. The results of the adsorption tests and zeta potential measurements revealed that the DDTC-modified mineral surface reinforced adsorption of xanthate ions, thereby improving the chrysocolla floatability. Therefore, the Cu ions double interaction of DDTC and xanthate on the chrysocolla surfaces enhanced the strength and stability of the hydrophobic layer, resulting in an enhanced hydrophobization of the chrysocolla for its flotation.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2022, 58, 6; art. no. 152599
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study of distortion correction algorithms based on aspheric fisheye lens design
    Autorzy:
    Li, Dan
    Zhang, Baolong
    Zhu, Jiawei
    Wang, Qi
    Zhu, Zhenwei
    Powiązania:
    https://bibliotekanauki.pl/articles/1835810.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    fisheye lens
    image processing
    distortion correction
    imaging optics
    Opis:
    A design method of aspheric fisheye lens has been proposed in this paper, based on the requirements of automobile surround view system. The study has designed a kind of ultra-wide-angle fisheye lens, which only consists of a spherical glass lens and three aspherical plastic lenses. The maximum diameter of imaging aperture is 15. 3 mm; the working distance behind is 2.158 mm; the total length of system is 11.44 mm; the focal length is 0.97 mm; the viewing angle is 210°, and the modulation transfer function (MTF) curve is 0.35 at 60 lp/mm. Furthermore, a kind of a distortion correction algorithm for fisheye lens has been created, which calculates the position of the ideal image point with the actual image point and the obtained distortion curve and distortion model. The algorithm can correct the distorted image taken by a fisheye lens to an image without distortion, which is suitable for the human eye. The algorithm, which is simple and effective, has been applied to the automobile surround view system. It has been verified to be accurate and reasonable, after the comparison is made between the real image taken by a fisheye lens and the corrected image.
    Źródło:
    Optica Applicata; 2020, 50, 4; 579-592
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Adsorption of yeast dextran on clinochlore surface and the implications for pyrite/clinochlore separation
    Autorzy:
    Wang, Zhen
    Zou, Dan
    Zhao, Kaile
    Safarov, Sayfidin
    Xu, Ying
    Powiązania:
    https://bibliotekanauki.pl/articles/2146917.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    clinochlore
    pyrite
    flotation
    yeast dextran
    adsorption
    Opis:
    Silicate minerals with a certain degree of flotability are often easy to mix into sulfide ore concentrate in mineral processing industry. In this paper, the adsorption of yeast dextran on clinochlore and its application in pyrite/clinochlore separation were investigated. The adsorbed amount and micro polarity measurement results displayed that the yeast dextran molecules selectively adsorbed onto clinochlore surface compared with pyrite. The adsorbed yeast dextran resulted in the increase in the surface polarity of clinochlore surface, and inhibited the further adsorption of xanthate, thus keep it hydrophilic and depressed. Quantum chemical computation results indicated that yeast dextran was mainly adsorbed on mineral surface by the chelation with the surface metal active sites, and the chelating strength of yeast dextran with three ions was in the sequence of Fe3+ > Mg2+ > Fe2+. While Mg2+, Fe2+ and Fe3+ are the main metal ions on the surface of clinochlore, and Fe2+ is the unique metal ions on pyrite surface. This is the reason of the selectivity of the yeast dextran depressant for pyrite/clinochlore flotation system. The flotation results demonstrated that yeast dextran was qualified to selectively depress clinochlore in pyrite flotation.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2022, 58, 4; art. no. 151635
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Shrink-Proof Treatment Parameter Optimisation of Cashmere Yarn
    Autorzy:
    Li, Long
    Wang, Wei
    Zhang, Xian
    Wu, Lei
    Yang, Dan
    Powiązania:
    https://bibliotekanauki.pl/articles/2171991.pdf
    Data publikacji:
    2022
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    cashmere yarn
    shrink-proof
    potassium permanganate treatment
    yarn shrinkage percentage
    Opis:
    Cashmere fiber has soft hand and good elasticity. However, it exhibits shrink because of its scale. In this work, cashmere yarn (38.26 tex) was treated using NaCl-KMnO4 to reduce the shrink of cashmere yarn. Orthogonal design and fuzzy comprehensive evaluation were used for optimizing treating parameters. Experimental results showed that the yarn shrink percentage of treated yarn was 0.56% which was less than that untreated yarn, and the treated yarn strength had a little drop compared with untreated yarn. The fiber scale outline of treated yarn could be observed by SEM, but the scale edge is blunt and irregular.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2022, 3 (151); 57--60
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Virtual Cultural Communication: Establishing Dialogues Between China and Poland
    Wirtualna komunikacja kulturowa. Nawiązywanie dialogu między Chinami a Polską
    Autorzy:
    Brighton, Christopher
    Wang, Ling Bin (Judy)
    Dan, Li Dawn
    Bełch, Sylwia
    Powiązania:
    https://bibliotekanauki.pl/articles/1192508.pdf
    Data publikacji:
    2018
    Wydawca:
    Krakowskie Towarzystwo TERTIUM
    Tematy:
    Polska
    metodologia EFL
    global cooperation
    intercultural communication
    online learning
    China
    Polska
    EFL Methodology
    współpraca globalna
    komunikacja międzykulturowa
    nauczanie online
    Chiny
    Opis:
    The overall aim of the current paper is to establish best practices for developing, engaging and working critically in virtual cultural communication. The need to build practical language communication skills is not a new idea or a new part of methodology. With the development of technology, the range of communicative opportunities has grown and allowed virtual cultural dialogues to take place. The focus of these situations is not only language development and practice, but also critical cultural awareness and intercultural skill development. The paper presents contrasting approaches in the methodological construction of one such programme between young students in Entel Foreign Language School, China, and Krosno State College, Poland. Over the course of the link from Spring to Summer 2017, different approaches were taken by the instructors and students in both countries resulting in varying levels of engagement and critical understanding. The Chinese approach stresses communication as an outcome and delivers more time to oral activities in the classroom which contrasts with the Polish approach of a stricter language based teaching strategy. As a result, the paper will discuss the relative merits of the two methodological frameworks in the communication project. This will be achieved by evaluating the overall success of the communication based on interviews with the student participants and observations of interaction during the link meetings.Finally, the paper will illustrate a methodology for working with such links and developing cross-cultural communication.
    Ogólnym celem niniejszego artykułu jest ustalenie najlepszych praktyk w zakresie rozwijania, zaangażowania i krytycznej pracy w wirtualnej komunikacji międzykulturowej. Sama potrzeba budowania praktycznych umiejętności komunikacji językowej nie jest nowym pomysłem ani nową częścią metodologii. Wraz z rozwojem technologii zwiększył się wachlarz możliwości komunikacyjnych, umożliwiając prowadzenie wirtualnych dialogów międzykulturowych. W takich sytuacjach kładzie się nacisk nie tylko na rozwój języka i praktyki językowej, ale także na krytyczną świadomość kulturową, jak również na rozwój umiejętności międzykulturowych. W artykule przedstawiono kontrastujące podejścia w metodologicznej konstrukcji jednego z takich programów wśród młodych studentów w Entel Foreign Language School w Chinach i Państwowej Wyższej Szkole zawodowej w Krośnie w Polsce. W trakcie wspólnej inicjatywy w okresie od wiosny do lata 2017 r. nauczyciele i uczniowie w obu krajach podejmowali różne działania, skutkujące różnymi poziomami zaangażowania i krytycznego zrozumienia. Podejście chińskie podkreśla komunikację jako główny wynik, przeznaczając więcej czasu na zajęcia ustne w klasie. Kontrastuje to z polskim podejściem zasadzającym się na bardziej rygorystycznej strategii nauczania opartej na języku. W rezultacie, w artykule zostaną omówione względne zalety obu tych dwóch metodologicznych ram w projekcie komunikacji. Dokonamy tego poprzez ocenę całościowego sukcesu komunikacji, opartą na wywiadach z uczestnikami i obserwacjach interakcji podczas spotkań prowadzonych w ramach projektu. Na zakończenie, w artykule zilustrowano metodologię pracy do zastosowania dla takich wspólnych inicjatyw i rozwoju komunikacji międzykulturowej.
    Źródło:
    Półrocznik Językoznawczy Tertium; 2018, 3, 1
    2543-7844
    Pojawia się w:
    Półrocznik Językoznawczy Tertium
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    High Cycle Fatigue Performance of Hollow-Extruded 6005A-T6 Aluminum Alloy Characterized by a Layered Microstructure
    Autorzy:
    Ma, Zhongwei
    Ma, Lin
    Xu, Bo
    Dan, Chuchen
    He, Zhaokun
    Wang, Yue
    Powiązania:
    https://bibliotekanauki.pl/articles/354038.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    friction stir welding
    hollow-extruded 6005A-T6 aluminum alloy
    fatigue
    fracture
    microstructure
    Opis:
    Sound joint of hollow-extruded 6005A-T6 aluminum alloy was achieved by friction stir welding and its high cycle fatigue performance was mainly investigated. As a result, the joint fatigue limit reaches 128.1 MPa which is 55% of the joint tensile strength. The fatigue fracture mainly occurs at the boundary between the stir zone and thermo-mechanically affected zone due to the large difference in the grain size. This difference is caused by the layered microstructure of the base material. The shell pattern with parallel arcs is the typical morphology in the fracture surface and the distance between arcs is increased with the increase of stress level. The specimen with the fracture located in the stir zone possesses a relatively low fatigue life.
    Źródło:
    Archives of Metallurgy and Materials; 2019, 64, 1; 285-292
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fault detection for DFIG based on sliding mode observer of new reaching law
    Autorzy:
    Li, RuiQi
    Yu, WenXin
    Wang, JunNian
    Lu, Yang
    Jiang, Dan
    Zhong, GuoLiang
    Zhou, ZuanBo
    Powiązania:
    https://bibliotekanauki.pl/articles/2128165.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fault detection
    doubly-fed induction generator
    sliding mode observer
    new reaching law
    wykrywanie uszkodzeń
    generator indukcyjny dwustronnie zasilany
    obserwator w trybie przesuwnym
    nowe prawo osiągania
    Opis:
    For fault detection of doubly-fed induction generator (DFIG), in this paper, a method of sliding mode observer (SMO) based on a new reaching law (NRL) is proposed. The SMO based on the NRL (NRL- SMO) theoretically eliminates system chatter caused by the reaching law and can be switched in time with system interference in terms of robustness and smoothness. In addition, the sliding mode control law is used as the index of fault detection. Firstly, this paper gives the NRL with the theoretically analyzes. Secondly, according to the mathematical model of DFIG, NRL-SMO is designed, and its analysis of stability and robustness are carried out. Then this paper describes how to choose the optimal parameters of the NRL-SMO. Finally, three common wind turbine system faults are given, which are DFIG inter-turn stator fault, grid voltage drop fault, and rotor current sensor fault. The simulation models of the DFIG under different faults is established. The simulation results prove that the superiority of the method of NRL-SMO in state tracking and the feasibility of fault detection.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 3; e137389, 1--13
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence and mechanism of Zn2+ on fluorite/calcite in sodium hexametaphosphate flotation system
    Autorzy:
    Ruitao, Liu
    Dan, Liu
    Ruofan, Sun
    Daqian, Wang
    Wenkang, Zhang
    Yuebing, Liu
    Shuming, Wen
    Powiązania:
    https://bibliotekanauki.pl/articles/2175451.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    fluorite
    calcite
    sodium hexametaphosphate
    flotation
    metal ions
    Opis:
    Fluorite and calcite have similar surface properties and natural floatability, so their flotation separation has always been a problem faced by the beneficiation industry. The key to flotation separation is the choice of depressants. Sodium hexametaphosphate (SHMP) has a good effect on fluorite calcite selective inhibition. In this paper, the effects of Zn2+ on the selective inhibition of SHMP in the flotation process of fluorite and calcite were studied through single mineral and artificial mixed mineral flotation experiments. Solution chemical calculation, X-ray photoelectron spectroscopy (XPS), Fourier Transform Infrared spectroscopy (FT-IR) and Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) analyses investigated the mechanism of action of Zn2+, which had the most significant negative effect on the selective inhibition of SHMP. The results show that the main components of SHMP inhibiting minerals are HPO42- and H2PO4-, which can react with Ca active sites on the mineral surface to form hydrophilic Ca(H22PO4)2 and CaHPO4, while Zn2+ The presence of HPO42- in solution resulted in the formation of stable ZnHPO4 complexes, thereby weakening the inhibitory effect of SHMP on minerals.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2022, 58, 6; art. no. 151676
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fault detection for DFIG based on sliding mode observer of new reaching law
    Autorzy:
    Li, RuiQi
    Yu, WenXin
    Wang, JunNian
    Lu, Yang
    Jiang, Dan
    Zhong, GuoLiang
    Zhou, ZuanBo
    Powiązania:
    https://bibliotekanauki.pl/articles/2173629.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fault detection
    doubly-fed induction generator
    sliding mode observer
    new reaching law
    wykrywanie uszkodzeń
    generator indukcyjny dwustronnie zasilany
    obserwator w trybie przesuwnym
    nowe prawo osiągania
    Opis:
    For fault detection of doubly-fed induction generator (DFIG), in this paper, a method of sliding mode observer (SMO) based on a new reaching law (NRL) is proposed. The SMO based on the NRL (NRL- SMO) theoretically eliminates system chatter caused by the reaching law and can be switched in time with system interference in terms of robustness and smoothness. In addition, the sliding mode control law is used as the index of fault detection. Firstly, this paper gives the NRL with the theoretically analyzes. Secondly, according to the mathematical model of DFIG, NRL-SMO is designed, and its analysis of stability and robustness are carried out. Then this paper describes how to choose the optimal parameters of the NRL-SMO. Finally, three common wind turbine system faults are given, which are DFIG inter-turn stator fault, grid voltage drop fault, and rotor current sensor fault. The simulation models of the DFIG under different faults is established. The simulation results prove that the superiority of the method of NRL-SMO in state tracking and the feasibility of fault detection.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 3; art. no. e137389
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies