Pub Date : 2019-06-20DOI: 10.17212/1727-2769-2019-2-16-26
Dmitry Kaluzhskii, A. Mekhtiyev, A. Kharitonov, N. Uvarov
{"title":"Adaptive control system of a generator with a combined excitation in wind power","authors":"Dmitry Kaluzhskii, A. Mekhtiyev, A. Kharitonov, N. Uvarov","doi":"10.17212/1727-2769-2019-2-16-26","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-2-16-26","url":null,"abstract":"","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125509881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-20DOI: 10.17212/1727-2769-2019-2-27-37
I. Kozlov, A. G. Vostretsov
{"title":"About the possibility of using satellite navigation systems as illumination signals in passive radar stations","authors":"I. Kozlov, A. G. Vostretsov","doi":"10.17212/1727-2769-2019-2-27-37","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-2-27-37","url":null,"abstract":"","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131272039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-20DOI: 10.17212/1727-2769-2019-2-38-55
E. Kopyev, I. Anufriev, E. Shadrin, E. Loboda, M. Agafontsev, M. A. Mukhina
{"title":"Study of flame characteristics of burner when spraying liquid hydrocarbons with a steam jet","authors":"E. Kopyev, I. Anufriev, E. Shadrin, E. Loboda, M. Agafontsev, M. A. Mukhina","doi":"10.17212/1727-2769-2019-2-38-55","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-2-38-55","url":null,"abstract":"","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129158633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-20DOI: 10.17212/1727-2769-2019-2-56-71
L. Neyman, V. Neyman
Development of modern methods of electromechanical systems analysis and synthesis inclu-ding impact ones requires the improvement of their dynamical models. The description of the generalized dynamical model of a single-coil synchronous impact electromagnetic machine (SCSIEM) that combines different methods of implementation of reciprocated motion of the striker impact mass is presented. The electromagnetic impact unit considered as a research subject is powered from a 50 Hz power source. It consists of the linear electromagnetic motor and the multimass mechanical oscillatory system periodically interacting with a deformed medium. The investigation is of current importance, because it is necessary to improve and extend the dynamic design procedure when the complex problem of analysis and synthesis of SCSIEM scheme variants is solved. The generalized model is based on the differential equations of the electrical ba-lance and mechanical interaction of traveling inertial masses linked by spring linkages derived by the Lagrange method. An example of the dynamical model based on the generalized one is considered for a three-mass SCSIEM with striker two-side free running-out powered from 50 Hz power supply trough a half-period rectifier. Working time for creation of dynamical design mo-dels for different variants of SCSIEM can be decreased.
{"title":"Generalized model of a single-coil synchronous impact electromagnetic machine","authors":"L. Neyman, V. Neyman","doi":"10.17212/1727-2769-2019-2-56-71","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-2-56-71","url":null,"abstract":"Development of modern methods of electromechanical systems analysis and synthesis inclu-ding impact ones requires the improvement of their dynamical models. The description of the generalized dynamical model of a single-coil synchronous impact electromagnetic machine (SCSIEM) that combines different methods of implementation of reciprocated motion of the striker impact mass is presented. The electromagnetic impact unit considered as a research subject is powered from a 50 Hz power source. It consists of the linear electromagnetic motor and the multimass mechanical oscillatory system periodically interacting with a deformed medium. The investigation is of current importance, because it is necessary to improve and extend the dynamic design procedure when the complex problem of analysis and synthesis of SCSIEM scheme variants is solved. The generalized model is based on the differential equations of the electrical ba-lance and mechanical interaction of traveling inertial masses linked by spring linkages derived by the Lagrange method. An example of the dynamical model based on the generalized one is considered for a three-mass SCSIEM with striker two-side free running-out powered from 50 Hz power supply trough a half-period rectifier. Working time for creation of dynamical design mo-dels for different variants of SCSIEM can be decreased.","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121736276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-20DOI: 10.17212/1727-2769-2019-2-72-79
B. Reznikov, O. Sheremet
{"title":"The influence of the internal structure of the composite at the boundaries of the limit values of the temperatures","authors":"B. Reznikov, O. Sheremet","doi":"10.17212/1727-2769-2019-2-72-79","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-2-72-79","url":null,"abstract":"","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129674158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-20DOI: 10.17212/1727-2769-2019-2-80-91
A. A. Shevchenko, Z. Temlyakova, D. Toporkov
{"title":"Motor heating calculation automatization using the soft-starting device based on the self-starting calculation algorithm","authors":"A. A. Shevchenko, Z. Temlyakova, D. Toporkov","doi":"10.17212/1727-2769-2019-2-80-91","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-2-80-91","url":null,"abstract":"","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127377821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-20DOI: 10.17212/1727-2769-2019-2-7-15
A. Koskin, S. Popov, Anastasia Shcherbashina
Many industrial processes involve heat removal by means of cooling devices. In particular, the problem of the temperature control has become crucial in high heat fluxes applications, such as nuclear fission plants and systems for micro/nano power electronics (MEMS/NEMS). Nanofluids represent diluted suspensions of nanoparticles with a diameter of less than 100 nm. The pre-sent study is devoted to the liquid composition consists of zinc oxide nanoparticles (ZNP) in tetraethylene glycol (PEG200)/kerosene (KO25) base fluid. Zinc oxide nanoparticles samples were obtained by sol-gel technique using ZnX (II) 3 SO , , AcO as precursor, followed by calcination of Zn(CO 3 ) y (OH) x at 300–400 °C. Preparation methods of 0.5–3 wt.% ZnO/10–40 vol.% PEG200-KO25 nanofluids have been developed using zinc oleate (1–3 wt.%) as a dispersant. The observed thermal conductivity were measured using self-constructed experimental setup. An equilibrium temperature ( Т eq ) established as a result of heat transfer to a medi-um and constant heating process. That parameter used to describe observed thermal conductivity. The lower viscosity of the prepared nanofluids leads to a greater observable thermal conductivity at auto-convection mode ( Т eq = 49.7–52.5
许多工业过程都涉及通过冷却装置来散热。特别是在高热流应用中，温度控制问题变得至关重要，例如核裂变装置和微/纳米电力电子系统(MEMS/NEMS)。纳米流体是直径小于100纳米的纳米颗粒的稀释悬浮液。本文研究了氧化锌纳米颗粒(ZNP)在四乙二醇(PEG200)/煤油(KO25)基液中的液体组成。采用溶胶-凝胶法，以ZnX (II) 3so，， AcO为前驱体，在300-400℃下煅烧Zn(CO 3) y (OH) x，得到氧化锌纳米颗粒样品。研究了以油酸锌(1-3 wt.%)为分散剂制备0.5-3 wt.% ZnO/ 10-40 vol.% PEG200-KO25纳米流体的方法。观察到的热导率是用自建的实验装置测量的。一种平衡温度(Т eq)，是传热到介质和恒定加热过程的结果。用来描述观察到的热导率的参数。制备的纳米流体粘度越低，在自对流模式下的热导率越高(Т eq = 49.7-52.5)
{"title":"The composition development and the heat transfer investigation of zinc oxide nanofluids","authors":"A. Koskin, S. Popov, Anastasia Shcherbashina","doi":"10.17212/1727-2769-2019-2-7-15","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-2-7-15","url":null,"abstract":"Many industrial processes involve heat removal by means of cooling devices. In particular, the problem of the temperature control has become crucial in high heat fluxes applications, such as nuclear fission plants and systems for micro/nano power electronics (MEMS/NEMS). Nanofluids represent diluted suspensions of nanoparticles with a diameter of less than 100 nm. The pre-sent study is devoted to the liquid composition consists of zinc oxide nanoparticles (ZNP) in tetraethylene glycol (PEG200)/kerosene (KO25) base fluid. Zinc oxide nanoparticles samples were obtained by sol-gel technique using ZnX (II) 3 SO , , AcO as precursor, followed by calcination of Zn(CO 3 ) y (OH) x at 300–400 °C. Preparation methods of 0.5–3 wt.% ZnO/10–40 vol.% PEG200-KO25 nanofluids have been developed using zinc oleate (1–3 wt.%) as a dispersant. The observed thermal conductivity were measured using self-constructed experimental setup. An equilibrium temperature ( Т eq ) established as a result of heat transfer to a medi-um and constant heating process. That parameter used to describe observed thermal conductivity. The lower viscosity of the prepared nanofluids leads to a greater observable thermal conductivity at auto-convection mode ( Т eq = 49.7–52.5","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122490736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-20DOI: 10.17212/1727-2769-2019-1-83-90
A. Petrov
{"title":"A control system of a power factor correction device for metro substations","authors":"A. Petrov","doi":"10.17212/1727-2769-2019-1-83-90","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-1-83-90","url":null,"abstract":"","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123232709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-20DOI: 10.17212/1727-2769-2019-1-62-72
E. Lavrenov, Z. Temlyakova, Аnton Temlyakov
severe operating conditions. Because of the turn-to-turn short circuit mode specificity, application of a standard method for calculating motor characteristics is impossible in this case. A modifica-tion of the classic mathematical model for calculating currents and torques under rotor circuit unbalanced condition is presented as a solution of the problem. As a result of numerical simula-tion, the dependences of phase currents of the stator and rotor windings, the angular frequency of the rotor, as well as static mechanical characteristics of the machine in the turn-to-turn short circuit mode in one of the rotor phases are shown.Based on the results obtained, criteria are pointed out that make it possible to conclude that it is advisable to continue the damaged motor operation. As future research, it is possible to create a real-time diagnostic system based on the developed algorithm for calculating symmetric modes of an induction motor.
{"title":"Estimation of the turn-to-turn short circuit effect on the induction motor operation quality","authors":"E. Lavrenov, Z. Temlyakova, Аnton Temlyakov","doi":"10.17212/1727-2769-2019-1-62-72","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-1-62-72","url":null,"abstract":"severe operating conditions. Because of the turn-to-turn short circuit mode specificity, application of a standard method for calculating motor characteristics is impossible in this case. A modifica-tion of the classic mathematical model for calculating currents and torques under rotor circuit unbalanced condition is presented as a solution of the problem. As a result of numerical simula-tion, the dependences of phase currents of the stator and rotor windings, the angular frequency of the rotor, as well as static mechanical characteristics of the machine in the turn-to-turn short circuit mode in one of the rotor phases are shown.Based on the results obtained, criteria are pointed out that make it possible to conclude that it is advisable to continue the damaged motor operation. As future research, it is possible to create a real-time diagnostic system based on the developed algorithm for calculating symmetric modes of an induction motor.","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128250396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-20DOI: 10.17212/1727-2769-2019-1-91-103
D. Shandrigin, D. Egorov, V. Novikov, V. Dovgun
{"title":"Analysis of the effectiveness of passive filter-devices for traction power supply","authors":"D. Shandrigin, D. Egorov, V. Novikov, V. Dovgun","doi":"10.17212/1727-2769-2019-1-91-103","DOIUrl":"https://doi.org/10.17212/1727-2769-2019-1-91-103","url":null,"abstract":"","PeriodicalId":448354,"journal":{"name":"Proceedings of the Russian higher school Academy of sciences","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121390526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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