scholarly journals Comprehensive Real-Time Hardware-In-the-Loop Transient Emulation of MVDC Power Distribution System on Nuclear Submarine

2020 ◽  
Vol 1 ◽  
pp. 326-339
Author(s):  
Weiran Chen ◽  
Tian Liang ◽  
Venkata Dinavahi
Keyword(s):  
Real Time ◽  
Power Distribution ◽  
Distribution System ◽  
Hardware In The Loop ◽  
Nuclear Submarine ◽  
Power Distribution System

scholarly journals A Method of DC Arc Detection in All-Electric Aircraft

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4190
Author(s):  
Teng Li ◽  
Zhijie Jiao ◽  
Lina Wang ◽  
Yong Mu
Keyword(s):  
Fault Detection ◽  
Real Time ◽  
Power Distribution ◽  
Distribution System ◽  
Detection Method ◽  
Discrete Wavelet ◽  
Power Distribution System ◽  
Time Frequency ◽  
Intelligent Recognition ◽  
Dc Arc

Arc faults in an aircraft’s power distribution system (PDS) often leads to cable and equipment damage, which seriously threatens the personal safety of the passengers and pilots. An accurate and real-time arc fault detection method is needed for the Solid-State Power Controller (SSPC), which is a key protection equipment in a PDS. In this paper, a new arc detection method is proposed based on the improved LeNet5 Convolutional Neural Network (CNN) model after a Time–Frequency Analysis (TFA) of the DC currents was obtained, which makes the arc detection more real-time. The CNN is proposed to detect the DC arc fault for its advantage in recognizing more time–frequency joint details in the signals; the new structure also combines the adaptive and multidimensional advantages of the TFA and image intelligent recognition. It is confirmed by experimental data that the combined TFA–CNN can distinguish arc faults accurately when the whole training database has been repeatedly trained 3 to 5 times. For the TFA, two kinds of methods were compared, the Short-Time Fourier Transform (STFT) and Discrete Wavelet Transform (DWT). The results show that DWT is more suitable for DC arc fault detection. The experimental results demonstrated the effectiveness of the proposed method.

Research on Spacecrafts Intelligent Power Distribution Technology

2012 ◽  
Vol 182-183 ◽  
pp. 436-439
Author(s):  
Kai Cui ◽  
Zhong Bo Dong ◽  
Bo Li
Keyword(s):  
Real Time ◽  
Power Supply ◽  
Power Distribution ◽  
Distribution System ◽  
Power Supply System ◽  
Supply System ◽  
Power Distribution System ◽  
Higher Power ◽  
Software And Hardware

The development of all kinds of spacecrafts is much smaller and more intelligent, integration increased constantly, one satellite can accomplish more and more expectant missions by using plenty of loads. As a result, higher power, higher reliability and much smarter power distribution system is needed to satisfy the growing quantity of loads. This paper presents the power supply system which characterized by loads observation real time, software and hardware combinational over current protection, bus communication with on board computer, the system has been validated in project and the conclusion has been proved accuracy and reliability.

Real-Time Voltage Regulation in Power Distribution System Using Fuzzy Control

2010 ◽  
Vol 25 (2) ◽  
pp. 1112-1123 ◽  
Author(s):  
Danilo Hernane Spatti ◽  
Ivan Nunes da Silva ◽  
Wesley Fernando Usida ◽  
Rogerio Andrade Flauzino
Keyword(s):  
Fuzzy Control ◽  
Real Time ◽  
Power Distribution ◽  
Distribution System ◽  
Voltage Regulation ◽  
Power Distribution System
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