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2020 Dynamics of Systems, Mechanisms and Machines (Dynamics)最新文献

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Diagnostics of Asynchronous Motor Failures at the Early Stages of Damage 异步电动机损坏早期故障诊断
2020 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2020-11-10 DOI: 10.1109/Dynamics50954.2020.9306152
P. Belyaev, A. P. Golovskiy
{"title":"Diagnostics of Asynchronous Motor Failures at the Early Stages of Damage","authors":"P. Belyaev, A. P. Golovskiy","doi":"10.1109/Dynamics50954.2020.9306152","DOIUrl":"https://doi.org/10.1109/Dynamics50954.2020.9306152","url":null,"abstract":"this article shows that there is a need to improve mathematical models of an asynchronous motor to establish new or clarify existing relationships between the diagnostic feature and the diagnosed defect. A mathematical model of an asynchronous motor in relation to a pumping unit is presented. Based on the mathematical model, a simulation model was developed and simulation was performed in the Simulink/Matlab computer mathematics environment. We found out that it is possible to simulate the operation of an asynchronous motor with different degrees of rotor damage based the proposed simulation model of an asynchronous motor with a pumping unit.","PeriodicalId":419225,"journal":{"name":"2020 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124873067","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}
引用次数: 0
Analysis of the Joint Functioning of the Timing and Phase Synchronization Algorithms of the GMSK-Signal gmsk信号的定时和相位同步算法联合作用分析
2020 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2020-11-10 DOI: 10.1109/Dynamics50954.2020.9306155
E. V. Derecha, D. D. Privalov
{"title":"Analysis of the Joint Functioning of the Timing and Phase Synchronization Algorithms of the GMSK-Signal","authors":"E. V. Derecha, D. D. Privalov","doi":"10.1109/Dynamics50954.2020.9306155","DOIUrl":"https://doi.org/10.1109/Dynamics50954.2020.9306155","url":null,"abstract":"The paper provides an analysis of phase and timing synchronization algorithms for a GMSK signal with a changing frequency shift without using known data in the signal, based on raising to a power. To eliminate the changing frequency shift, a feedback loop with first-order astatism is used. The possibility of the simultaneous operation of these algorithms is shown, a joint block diagram for their implementation is presented. The numerical dependences of the variances of the phase and timing estimates versus the signal-to-noise ratio are calculated with various values of the coefficient in the feedback loop and the filter length as parameters.","PeriodicalId":419225,"journal":{"name":"2020 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130651066","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}
引用次数: 0
Mathematical Modeling of Transient Processes of a Three-pulse System of Automatic Control of Water Supply to the Steam Generator When the Load Changes 负荷变化时三脉冲给水自动控制系统暂态过程的数学建模
2020 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2020-11-10 DOI: 10.1109/Dynamics50954.2020.9306117
D. Umurzakova
{"title":"Mathematical Modeling of Transient Processes of a Three-pulse System of Automatic Control of Water Supply to the Steam Generator When the Load Changes","authors":"D. Umurzakova","doi":"10.1109/Dynamics50954.2020.9306117","DOIUrl":"https://doi.org/10.1109/Dynamics50954.2020.9306117","url":null,"abstract":"The paper analyzes an operation of the typical three-impulse automatic control system (ACS) of the steam generator water supply. A mathematical model has been developed to test its operability for load shedding, allowing you to set maximum deviations of the water level without full-scale tests, without adjusting the operation settings technological protections by the level of water in the drum. Reasons identified static regulation errors when working out internal and external disturbances in the flow rate of superheated steam in a typical ACS. The relevance of modernization of a typical ACS power supply to the steam generator water. Altogether, under all influences, a significant improvement in the quality of regulation was obtained compared to a typical three-impulse automatic power control system. The relevance of modernization of a typical system of automatic control of water supply of a steam generator to eliminate static regulation errors in a wide range of changes loads.","PeriodicalId":419225,"journal":{"name":"2020 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127376477","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}
引用次数: 3
Improvement of Electric Drive with Phase Synchronization Dynamics in the Mode of Change Processing of Reference Frequency Signal 参考频率信号变化处理方式下相位同步动力学电传动的改进
2020 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2020-11-10 DOI: 10.1109/Dynamics50954.2020.9306116
A. V. Bubnov, A. N. Chetverik, V. I. Shpineva
{"title":"Improvement of Electric Drive with Phase Synchronization Dynamics in the Mode of Change Processing of Reference Frequency Signal","authors":"A. V. Bubnov, A. N. Chetverik, V. I. Shpineva","doi":"10.1109/Dynamics50954.2020.9306116","DOIUrl":"https://doi.org/10.1109/Dynamics50954.2020.9306116","url":null,"abstract":"An electric drive with phase synchronization (EDPS) is widely used in the construction of an optical-mechanical scanning unit for thermal imaging and laser scanning systems. The purpose of the article is to improve the dynamic performance of EDPS by developing an electric drive control method, implemented on the basis of a pulse frequency-phase discriminator (PFPD) with an extended linear zone and on the basis of a frequency reference unit (FRU) with an additional control loop. In order to improve the dynamic performance of the electric drive in the range of high rotation frequencies, technical solutions have been proposed for EDPS construction using improved algorithms for the operation of the frequency reference unit and the logical comparison unit.","PeriodicalId":419225,"journal":{"name":"2020 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123639416","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}
引用次数: 0
Operation Efficiency Evaluation of the Electrotechnical Complex of Branch Power Lines 分支电力线电工综合体运行效率评价
2020 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2020-11-10 DOI: 10.1109/Dynamics50954.2020.9306118
S. Sidorov, I. Sukhachev, V. Sushkov, V. Antropova
{"title":"Operation Efficiency Evaluation of the Electrotechnical Complex of Branch Power Lines","authors":"S. Sidorov, I. Sukhachev, V. Sushkov, V. Antropova","doi":"10.1109/Dynamics50954.2020.9306118","DOIUrl":"https://doi.org/10.1109/Dynamics50954.2020.9306118","url":null,"abstract":"The relevance of increasing the efficiency of organizing and conducting repair and restoration work of overhead power transmission lines during lightning storms is associated with the need to increase the uninterrupted operation of the electrotechnical complex of outgoing lines. This requires solving the problem of improving the efficiency of maintenance of the electrotechnical complex of outgoing lines by introducing means for diagnosing damage to its elements (switching to maintenance according to the technical condition of the facility). The criterion for the effectiveness of maintenance can be the value of the availability coefficient of the electrotechnical complex. The time dependences of the availability coefficient and the probabilities of detecting the electrotechnical complex of the outgoing lines in each of the considered states are obtained, which will make it possible to make decisions on technical activities aimed at preventing material losses during operation overhead power transmission lines with electrical loading. There is including decisions related to monitoring risk dynamics, the modernization of electrical equipment, the use of surge protection. It is shown that the transition to maintenance on the technical condition of the electrotechnical complex of branch power lines using devices of diagnosing damage will increase the availability coefficient by 11.7% due to an increase in the efficiency of maintenance.","PeriodicalId":419225,"journal":{"name":"2020 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126282014","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}
引用次数: 3
Determination of the Downhole Compensator’s Optimal Power Considering the Cable Line’s Length and Cross Section 考虑电缆长度和截面的井下补偿器最优功率的确定
2020 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2020-11-10 DOI: 10.1109/Dynamics50954.2020.9306151
V. Kopyrin, M. Deneko, E. Engel, R. Khamitov
{"title":"Determination of the Downhole Compensator’s Optimal Power Considering the Cable Line’s Length and Cross Section","authors":"V. Kopyrin, M. Deneko, E. Engel, R. Khamitov","doi":"10.1109/Dynamics50954.2020.9306151","DOIUrl":"https://doi.org/10.1109/Dynamics50954.2020.9306151","url":null,"abstract":"Nowadays, reactive power compensation devices are installed on most objects of the fuel and energy complex. However, power’s selection for the compensation devices is an important goal. It is fulfiled in comparison with the cost and the resulting economic effect. The specification of the object’s power supply system should be taken into account. The compensation devices are installed on it. The purpose of the article is to determine the optimal parameters of downhole reactive power compensators. The installation parameters of the electric centrifugal pumps for oil production are considered. The study presents the optimal power’s curves of downhole compensators for submersible asynchronous motors with 110 kW, 125 kW, 140 kW and 160 kW power. The economic effect of reducing active power losses in the supply cable and the annual reduced unit costs are taken into account. According to the proposed method, the optimal power of the downhole compensator for a 125 kW submersible asynchronous electric motor is calculated. It is 105 kVAr for the submersible installation’s selected parameters in oil production area.","PeriodicalId":419225,"journal":{"name":"2020 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125914678","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}
引用次数: 1
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