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- W2956070351 abstract "Objective: To define the reasons, that prevent the implementation of electrical brake for multiple unit rolling stock (MVPS) with asynchronous traction drive as an automatic brake (emergency brakes). To find the method for eliminating of found reasons. To determine, using mathematical simulation, the time indexes of traction drive readiness to the electrical braking in case of no voltage in catenary system. Methods: Mathematical model of traction drive is built in Matlab Simulink software. By using this model the empirical relations of the time from the moment of command input, made by the control system, to start an emergency braking, to the moment of charging of input capacitors to nominal voltage (in case of no voltage in catenary system) from the train speed and equivalent resistance of stator circuit were obtained. Results: The problems, preventing the implementation of electrical brake for MVPS as an automatic brakes, are examined. The methods of solving these problems are suggested. By using the mathematical model the principal possibility of suggested methods is presented, as well as the estimation of the time of traction drive preparing for readiness for braking, depending on the train speed and equivalent resistance of stator circuit. Also, the engineering solutions, are found, that allow to implement the electrical brake for multiple unit rolling stock as an automatic one. Practical importance: Electrical for brake multiple unit rolling stock with asynchronous traction drive has several benefits in comparison with the pneumatic brake. It provides smaller braking distance, not influenced by low temperatures and provides better resistance for sliding and skidding. Implementation of electrical brakes for multiple unit rolling stock in the function of automatic brake will positively influence on the safety of operation and will allow to increase the operating speed of multiple unit rolling stock." @default.
- W2956070351 created "2019-07-12" @default.
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- W2956070351 date "2016-03-20" @default.
- W2956070351 modified "2023-09-27" @default.
- W2956070351 title "Approach for developing the plan of restoration of data communication network within the decision support intelligent system by using the precedent-based recovery method" @default.
- W2956070351 doi "https://doi.org/10.20295/2223-9987-2016-1-46-56" @default.
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