2020 International Ural Conference on Electrical Power Engineering (UralCon)最新文献_第3页

System for Cleaning the Surface of Solar Modules from Dust Pollution 太阳能组件表面粉尘污染净化系统

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216252

I. Kirpichnikova, V. Shestakova

引用次数: 0

External Power Supply Reliability Assessment to Consumers of 6-10 kV of the Substations of 35 kV and Higher 35kv及以上变电站6- 10kv用户外供电可靠性评价

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216312

A. Varganova, A. S. Irihov, A. Shemetov

{"title":"External Power Supply Reliability Assessment to Consumers of 6-10 kV of the Substations of 35 kV and Higher","authors":"A. Varganova, A. S. Irihov, A. Shemetov","doi":"10.1109/UralCon49858.2020.9216312","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216312","url":null,"abstract":"Assessing the reliability of external power supply is an important step in choosing a circuit for a high-voltage switchgear at main step-down substations. The main task in calculating the reliability indicators is to estimate the recovery duration and the failure flow parameter in order to determine the likely economic damage, which also depends on the size and type of load. This paper proposes a unification of calculations for assessing the reliability of external power supply circuits of the main step-down substations with a voltage of 35 kV and higher, which makes it possible to speed up the process of choosing the optimal switchgear circuit and evaluate the damage from a power outage. The developed algorithm makes it possible to determine, based on the technical specifications for designing, the value of the failure flow parameter and recovery time for switchgear circuits, converting them into a structural-analytical circuit that reflects the logic of the circuit in heavy duty mode (including redundancy of individual circuits, bypass, bus junction and section switches) In the calculation, an analytical method was used, based on the equivalentization of the structural scheme using the forced downtime coefficients. The work is carried out with the financial support of a grant from the President of the Russian Federation for young scientists - candidates of sciences MK-939.2019.8.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124948836","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

Use of a Fuzzy Neural Network to Evaluate the Cable Lines Insulation State 模糊神经网络在电缆绝缘状态评估中的应用

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216278

V. Biryulin, D. Kudelina, O. Larin

{"title":"Use of a Fuzzy Neural Network to Evaluate the Cable Lines Insulation State","authors":"V. Biryulin, D. Kudelina, O. Larin","doi":"10.1109/UralCon49858.2020.9216278","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216278","url":null,"abstract":"The article discusses the issues of monitoring and assessing the cable lines insulation state. Two approaches to the organization of cable line service are presented. The benefits of a risk-based approach are shown. The main factors affecting the state of cable insulation are indicated. Their division into three categories according to the mechanisms of influence on insulation is given. It is shown that numerous heterogeneous factors makes the task of assessing the cable lines insulation state difficult to formalize. The complex nature of the task of assessing the insulation status of cable lines also leads to the need to use the expert knowledge to increase the validity of the final result. It is shown that at present such problems are easily solved by using the mathematical apparatus of fuzzy systems or fuzzy logic. Systems based on fuzzy logic make it possible to adequately represent the experts knowledge of a subjective or incomplete nature. But these systems cannot automatically acquire knowledge for use in the mechanisms of conclusions, which does not allow to fully overcome the subjectivity of expert knowledge. It is shown that in order to overcome this problem it is necessary to switch to the fuzzy neural networks which allow to acquire new knowledge in the process of their work. The modernized structure of the hybrid network is presented, which allows to reduce the complexity of compiling the knowledge base rules for this network.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122880367","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

Development of a Hardware-Software Complex for Determining the Technical Condition of Pumping Equipment 确定泵送设备技术条件的软硬件综合体的开发

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216304

I. V. Prakhov, A. Khismatullin

引用次数: 0

Overcurrent Protection Scheme Utilising Reed Switches Instead of Current Transformers 用簧片开关代替电流互感器的过流保护方案

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216263

B. Mashrapov, O. Talipov, R. Mashrapova

{"title":"Overcurrent Protection Scheme Utilising Reed Switches Instead of Current Transformers","authors":"B. Mashrapov, O. Talipov, R. Mashrapova","doi":"10.1109/UralCon49858.2020.9216263","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216263","url":null,"abstract":"This paper states the need to create overcurrent protection without the use of current transformers due to their inherent disadvantages. Reed switches are proposed as current sensors, since they can simultaneously act as a current sensor, a current relay, and an analog-to-digital converter. The known overcurrent protections utilising reed switches are analyzed. The three closest alternatives of the proposed protection scheme are considered in more detail. A certain disadvantage of these protection schemes is failure to trip in case of a short circuit if reed switch contacts are stuck. Another disadvantage is the possibility of a false tripping if an interference occurs in the reed switch control winding due to a magnetic field. To eliminate the first disadvantage, a corresponding time relay is proposed to be started after each tripping of the reed switch with a delay shorter than the protection time for the interval between the first and the considered tripping of the reed switch. To eliminate the second disadvantage, the control winding and contacts of the specified reed switch are proposed to be connected in series to the control winding and contacts of the blocking reed switch. The latter has normally closed contacts, which open only in case of interference in the control winding circuit. The operation of the protection circuits and the measurement device has been analyzed in various modes of operation. A method for the protection scheme measurement device adjustment is proposed, which takes into account the inequality of the calculated and actual inductions of the magnetic field acting on the reed switch.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124642554","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: 8

Characteristic of Functional Subsystems of Electrical Grid Control Centers 电网控制中心功能子系统特性研究

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216313

D. Zolin, E. Ryzhkova

{"title":"Characteristic of Functional Subsystems of Electrical Grid Control Centers","authors":"D. Zolin, E. Ryzhkova","doi":"10.1109/UralCon49858.2020.9216313","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216313","url":null,"abstract":"This paper proposes a new design technology that uses a morphological matrix of the basic structures and their structural components to help develop a full-scale hierarchical IMS architecture based on automated process control systems at 110+ kV substations of 110 kV or 35 kV and 110 kV APCS's utilized by regional grid companies. To adopt advanced systems for diagnosis and power monitoring of 110+ kV output transformers, one needs to prove such adoption feasible, to use optics and SMART grid technologies; such adoption determines further grid development and serves better grid monitoring and automation. Equipment visualization helps evaluate its condition and decide reasonably on how to maintain it. The paper describes a novel method for displaying diagnostic data, which generates a cognitive graphical image of a code matrix on the address space of the ROM; the image shows normalized equivalents of multiple optimal control states to save 5% to 40% of electricity making the equipment more energy-efficient at minimum energy costs. To effectively implement the diagnostic system and to use state-of-the-art method for monitoring the main equipment of the power grid complex, one needs a uniform integrated approach to diagnostics based on proven and methodologically sound technological solutions that enable condition-appropriate maintenance and repair.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130584478","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 Model of Piezoelectric Element Noise: Influence on Nanosensor—Actuator Quality 压电元件噪声的数学模型:对纳米传感器执行器质量的影响

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216255

A. Sekachev, S. Slobodyan

引用次数: 0

Analysis of Statistical Information for Data Trend Forecasting 数据趋势预测的统计信息分析

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216276

A. Sherstneva, O. Sherstneva

引用次数: 0

Determining the Induced Voltages, Generated By High-Voltage OPL, on a Pipeline in the Presence of Longitudinal and Transversal Unsymmetry 在存在纵向和横向不对称的管道上确定高压OPL产生的感应电压

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216260

A. Cherepanov, A. Kryukov

{"title":"Determining the Induced Voltages, Generated By High-Voltage OPL, on a Pipeline in the Presence of Longitudinal and Transversal Unsymmetry","authors":"A. Cherepanov, A. Kryukov","doi":"10.1109/UralCon49858.2020.9216260","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216260","url":null,"abstract":"The routes of steel pipelines can pass along highvoltage OPL. Hazardous voltages can be induced on OPL structural parts due to OPL electromagnetic influence, thus creating health risks for the personnel servicing the pipeline. The highest voltages are observed in unsymmetrical modes when currents flow in the earth. Therefore, the problem of quantitative assessment of the induced voltages levels in the presence of longitudinal and transversal unsymmetry is urgent. To solve this problem, methods of simulating non-symmetrical modes of electrical energy systems (EES) were used; the methods were developed at the Irkutsk State Transport University and are based on the EES elements multiphase representation. The simulation was implemented using the Fazonord software application. The technique has been proposed, which allows to determine the induced voltage generated by high-voltage power lines on the parallel surface pipeline in unsymmetrical modes. The technique can be used to develop actions aimed at the protection of personnel operating pipelines in areas located in zones of electromagnetic effects of high-voltage OPL. The technique can be generalized in the event of non-parallel length of exposure of the pipeline and OPL. This work was financially supported by the grant “Improving the quality of electric energy and electromagnetic safety in railway power supply systems equipped with Smart Grid devices by applying methods and means of mathematical modeling based on phase coordinates”.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123996035","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 Current State of the Starting Device for Aircraft Gas Turbine Engines 航空燃气涡轮发动机起动装置现状分析

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216243

M. Zharkov, R. Sarakhanova

引用次数: 1