Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)最新文献_第8页

Emergency Modes Modeling in Non-Traction Consumers Power Supply Systems 非牵引用户供电系统应急模式建模

Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019) Pub Date : 1900-01-01 DOI: 10.2991/aviaent-19.2019.9

Yuri Bulatov, A. Kryukov, E. Alekseenko

{"title":"Emergency Modes Modeling in Non-Traction Consumers Power Supply Systems","authors":"Yuri Bulatov, A. Kryukov, E. Alekseenko","doi":"10.2991/aviaent-19.2019.9","DOIUrl":"https://doi.org/10.2991/aviaent-19.2019.9","url":null,"abstract":"The use of distributed generation (DG) plants, which includes renewable energy resources, allows to stabilize voltage levels, reduce losses in networks and to free couplings transfer capacities. Power quality can be enhanced based on DG in railroads power supply systems (RPSS), as well power supply efficiency and uninterruptedness of power consumers supply. However, when DG is used, a problem arises associated with the short circuit currents growth caused by additional power sources. To resolve this problem, development of methods emergency modes modeling in RPSS is required, when RPSS are equipped with DG plants. The article contains results of emergency modes study in power supply systems, with emergency modes caused by short circuits. A non-traction consumers' individual power supply region was modeled, which was connected to a traction substation through a DC link and which included the following DG plants: turbogenerator of minicogeneration plants; hydrogenerator of micro-hydropower plant; a wind power generation plant (WPGP) based on synchronous machine; WPGP based on DC machine and a solar power plant. The modeling results allow us to make the following conclusions: when DG plants are used, short circuits currents are growing which requires additional check of the switching equipment and changing relay protection setpoints to ensure selectivity; using DC link allows to significantly reduce short circuit currents, even when feed is available from DG plants; in case of two-phase short circuit a significant distortion of currents curves' harmonicity is observed, when currents are leaking from DG sources. Keywords—railroads power supply systems, distributed generation plants, emergency modes","PeriodicalId":158920,"journal":{"name":"Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125941267","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

Dual Row Rotary Piston Hydraulic Machine with Two Pumping Units 双排旋转活塞液压机与两个抽油机

Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019) Pub Date : 1900-01-01 DOI: 10.2991/aviaent-19.2019.47

A. Gavrilin, A. Nizhegorodov, B. Moyzes, K. Kuvshinov, Аleksandr Cherkasov

引用次数: 1

Calculation Methods of Investments Economic Efficiency in New Equipment 新设备投资经济效益的计算方法

Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019) Pub Date : 1900-01-01 DOI: 10.2991/aviaent-19.2019.32

V. Y. Konyuhov, A. Gladkih, I. I. Galyautdinov, E. I. Shchadova

引用次数: 1

Principles for Determining Special Trip Generators 确定特殊跳闸发电机的原则

Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019) Pub Date : 1900-01-01 DOI: 10.2991/aviaent-19.2019.44

A. Levashev, A. Mikhailov, A. Butuzova, M. Sharov

引用次数: 0

Structure Formation Processes During the Plasma Cementation of Steel and the Subsequent Heat Treatment 钢的等离子体胶结过程及后续热处理的组织形成过程

Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019) Pub Date : 1900-01-01 DOI: 10.2991/aviaent-19.2019.31

M. Konstantinova, E. A. Guseva, V. Gozbenko, S. K. Kargapol’tsev, M. G. Shtayger, A. Sivtsov, A. Karlina

引用次数: 0

Process Control of Forming the Surface Quality Parameters of Parts According to a Desired Law by Methods of Surface Plastic Deformation 用表面塑性变形法按预定规律成形零件表面质量参数的过程控制

Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019) Pub Date : 1900-01-01 DOI: 10.2991/aviaent-19.2019.49

М. N. Nagorkin, V. Fedorov, E. Kovalyova

引用次数: 1