The Research on Preventing Mal-Operation Algorithms in Distribution Network

2012 ◽  
Vol 614-615 ◽  
pp. 1895-1902 ◽  
Author(s):  
Yan Wei Zheng ◽  
Liang Ma ◽  
Yong Wu ◽  
Zhi Quan Feng
Keyword(s):  
Response Time ◽  
Power Supply ◽  
Topological Analysis ◽  
Distribution Network ◽  
Experimental Results ◽  
Topological Information ◽  
Analysis Algorithm ◽  
Short Response Time ◽  
Opening And Closing ◽  
Strong Ability

To analyze the operating orders in distribution network with multi-power supply and prevent mal-operation, the topological analysis algorithm and the logic-based analysis algorithm are proposed in this paper. In the topological analysis algorithm, the procedures of opening and closing breakers, isolating switches, and grounding device are expounded, which are based on the topological information of distribution network. In the logic-based analysis algorithm, the operating orders are analyzed according the collocated logical expressions. It needs abundant of artificial information, but it has strong ability to express. The experimental results show these algorithms can determine the simulating operation orders in short response time.

Graph-Based Temporary Ground Wire Management in Distribution Network

2014 ◽  
Vol 556-562 ◽  
pp. 1720-1725
Author(s):  
Xin Yang Fu ◽  
Chong Zhang ◽  
Shuai Gai ◽  
Wen Hua Liu ◽  
Zhuo Yue Ni ◽  
...  
Keyword(s):  
Topological Analysis ◽  
Distribution Network ◽  
Analysis Algorithm ◽  
Management Algorithm ◽  
Pocket Computer ◽  
The Cost ◽  
And Control

It requires a large number of temporary ground wires for maintenance tasks in distribution network. Because the temporary ground wires can be grounded anywhere, it is difficult to check their states and control them. Currently solutions are generally expensive in city-scale. This paper presents a method that integrates the complex monitor, control and communication modules into a pocket computer key. The abundant of ground wires are controlled by a simple electric lock, which will downgrade the cost of whole system. This paper also proposed a graph-base temporary ground wire management algorithm, which utilizes the Boolean adjacent matrix to determine the ground operations. The experiment results show that algorithm is more efficiency the baseline of the Topological Analysis Algorithm and the Logic-based Analysis Algorithm.

scholarly journals PROTOTYPE PERANCANGAN MEMBUKA DAN MENUTUP PINTU GERBANG RUMAH MENGGUNAKAN MOTOR DC BERBASIS ANDROID

2019 ◽  
Vol 2 (2) ◽  
pp. 47
Author(s):  
Irwanto Irwanto ◽  
Vaka Gustiono
Keyword(s):  
Mobile Phones ◽  
Power Supply ◽  
Experimental Results ◽  
Wireless Technology ◽  
Cellular Telephones ◽  
System Method ◽  
Testing Tool ◽  
Opening And Closing ◽  
Minimum System ◽  
Blue Tooth

<p>The gate is one of the main security in maintaining a home. Because the gate is the first coating to protect the contents and building of the house. It also did not escape the perpetrators of robbery criminal acts to have a way to overcome the weakness of protection given extra security on the fence. With the development of wireless technology, one of which is cheap and easy-to-use Bluetooth that can be reached by mobile phones that can be reached by all groups, Bluetooth is a facility on cellular telephones that is used to order to open and close doors with a Bluetooth application that is installed on a smartphone. The testing tool system method opens the gate of the house using an Android-based DC motor using an ATMEGA 8 microcontroller consisting of several blocks that are interconnected to one another. The results of the whole set of tools open and close the automatic gate using an android-based motor from a minimum system of ATMEGA 8, 5V Power Supply, blue-tooth, relay, handphone, LCD. Each component is interrelated and connected to form a whole set of tools opening and closing automatic gates using an Android hard-ware based hard-ware. Based on the experimental results the following conclusions can be drawn: (1) Bluetooth can work with a speed of 2.4 GHz and within 10 meters, (2) The speed of the blue-tooth application on the device is 0.1 s and (3) Relay is used as much as 4 to control 4 commands i.e. the first door is open and closed and the second door is open and closed.</p>

scholarly journals A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1700
Author(s):  
Anca Mihaela Vasile (Dragan) ◽  
Alina Negut ◽  
Adrian Tache ◽  
Gheorghe Brezeanu
Keyword(s):  
Standard Deviation ◽  
Power Supply ◽  
Temperature Sensor ◽  
Experimental Results ◽  
Temperature Error ◽  
Thermal Sensor ◽  
Memory Cells ◽  
Temperature Range ◽  
Read Only Memory ◽  
Digital Temperature Sensor

An EEPROM (electrically erasable programmable read-only memory) reprogrammable fuse for trimming a digital temperature sensor is designed in a 0.18-µm CMOS EEPROM. The fuse uses EEPROM memory cells, which allow multiple programming cycles by modifying the stored data on the digital trim codes applied to the thermal sensor. By reprogramming the fuse, the temperature sensor can be adjusted with an increased trim variation in order to achieve higher accuracy. Experimental results for the trimmed digital sensor showed a +1.5/−1.0 ℃ inaccuracy in the temperature range of −20 to 125 ℃ for 25 trimmed DTS samples at 1.8 V by one-point calibration. Furthermore, an average mean of 0.40 ℃ and a standard deviation of 0.70 ℃ temperature error were obtained in the same temperature range for power supply voltages from 1.7 to 1.9 V. Thus, the digital sensor exhibits similar performances for the entire power supply range of 1.7 to 3.6 V.

Impact of the operation of Accelerator Power Supply on the Distribution Network

2020 ◽  
Author(s):  
Aritra Chakraborty ◽  
Saurabh Kumar ◽  
Urmil M. Thaker ◽  
Amal S ◽  
Paul D. Christian ◽  
...  
Keyword(s):  
Power Supply ◽  
Distribution Network

Influence of distributed power supply in distributed power distribution network

2021 ◽  
pp. 1-8
Author(s):  
Xin Shen ◽  
Hongchun Shu ◽  
Min Cao ◽  
Nan Pan ◽  
Junbin Qian
Keyword(s):  
Power Supply ◽  
Power Distribution ◽  
Short Circuit ◽  
Power Grid ◽  
Distribution Network ◽  
Distribution Networks ◽  
Power Supplies ◽  
Power Distribution Network ◽  
Power Sources ◽  
Distributed Power

In distribution networks with distributed power supplies, distributed power supplies can also be used as backup power sources to support the grid. If a distribution network contains multiple distributed power sources, the distribution network becomes a complex power grid with multiple power supplies. When a short-circuit fault occurs at a certain point on the power distribution network, the size, direction and duration of the short-circuit current are no longer single due to the existence of distributed power, and will vary with the location and capacity of the distributed power supply system. The change, in turn, affects the current in the grid, resulting in the generation and propagation of additional current. This power grid of power electronics will cause problems such as excessive standard mis-operation, abnormal heating of the converter and component burnout, and communication system failure. It is of great and practical significance to study the influence of distributed power in distributed power distribution networks.

Monodispersed hierarchical ZnGa2O4 microflowers for self-powered solar-blind detection

2016 ◽  
Vol 4 (15) ◽  
pp. 3113-3118 ◽  
Author(s):  
Yue Teng ◽  
Le Xin Song ◽  
Wei Liu ◽  
Zhe Yuan Xu ◽  
Qing Shan Wang ◽  
...  
Keyword(s):  
Response Time ◽  
Bias Voltage ◽  
Dark Current ◽  
Blind Detection ◽  
Current Ratio ◽  
Zero Bias ◽  
Single Crystalline ◽  
Short Response Time ◽  
Solar Blind ◽  
Self Powered

We successfully synthesized ZnGa2O4 microflowers self-assembled by hexagonal single-crystalline nanopetals. The ZnGa2O4 crystal exhibits improved solar-blind detection performance such as short response time, large light to dark current ratio and high photocurrent stability under zero bias voltage.

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