Development of power supply devices for limitations of short circuit on the ship's hull

International Conference on Mechanical Engineering, Automation and Control Systems 2015

机械制造;无线电电子学;计算机科学

Fediuk, R.S.^1 ; Cherneev, A.M.^1

Far Eastern Federal University, 8, Sukhanova st., Vladivostok

690091, Russia^1

关键词: Alternating current;    Alternating voltages;    Arc suppression coil;    Circuit capacitance;    Current limiting circuits;    Power supply devices;    Single phase ground fault;    Single-phase short circuits;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/124/1/012009/pdf
DOI  :  10.1088/1757-899X/124/1/012009

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The authors of the paper have analysed the reasons and consequences of single-phase ground faults (hull faults). For all varieties of devices limiting the current single-phase ground faults, the most effective devices were found to be the arc-suppression coils with different switching circuits. In this case the measurement of circuit capacitance takes on a great importance. A number of variants of capacitance measurement is presented in the paper. The authors have had a detailed look at a device, limiting the single-phase short-circuit current. This device was developed on the basis of the Far Eastern Federal University under the direction of Dr. G.E. Kuvshinov. The device is provided with power supply that converts alternating current (AC) to direct current (DC), and is realised due to the use of semiconductor devices - transistors and diodes - in a bridge circuit. The technical outcome of this power supply application consists in the reduction of size and weight parameters (compared to the closest analogues) in order to connect the controlled voltage rectifier to the alternating voltage source, including mass and size of the capacitor bank of the current limiting circuit, and enhancing the dynamic parameters of the stage of uncontrolled charge of the output capacitor of the controlled voltage rectifier.