Control System for a Bipolar Capacitor Bank of a High-Power Nd:Glass Laser Chain

2012 ◽  
Vol 40 (7) ◽  
pp. 1898-1906 ◽  
Author(s):  
C. P. Navathe ◽  
M. S. Ansari ◽  
Sameer Nigam ◽  
Sreedhar Nyapathi ◽  
Bhupinder Singh ◽  
...  
Keyword(s):  
Control System ◽  
High Power ◽  
Capacitor Bank ◽  
Nd:Glass Laser

scholarly journals Rancang Bangun Pengaman Panel Distribusi Tenaga Listrik Di Lippo Plaza Sidoarjo Dari Kebakaran Berbasis Arduino Nano

2017 ◽  
Vol 1 (2) ◽  
pp. 31
Author(s):  
Achmad Solih ◽  
Jamaaluddin Jamaaluddin
Keyword(s):  
Control System ◽  
Power Factor ◽  
Power Distribution ◽  
Low Voltage ◽  
Capacitor Bank ◽  
Warning Sign ◽  
Inductive Load ◽  
Three Phase ◽  
Working Principle ◽  
Power Distribution Control

Panel system power distribution at Lippo Plaza Mall Sidoarjo consists of several parts, namely from Cubicle 20 KV, 20 KV step-down transformer for 380 V, then the supply to LVMDP (Low Voltage Main Distribution Panel) The new panel to the user. Before delivery to users to note that the power factor is corrected using a capacitor bank. Less good a power factor is turned into inductive load on the capacitor bank so that temperatures high  because of high load resulting capacitor bank erupt. To overcome in this study proposes a safety panel automation power distribution control system using a microcontroller. Control system microcontrollers for safety panel power distribution consists of: Microcontroller (Arduino Nano), Light sensor (LDR), temperature sensor (LM35DZ), LCD 16x2 I2C, Actuators (fan, buzzer, relay switch breaker network three phase), switch ( relay 5 VDC), ADC as Input data. The working principle of this microcontroller LM35DZ if the sensor detects a high temperature fan will flash, if the LDR sensor detects sparks then the buzzer will sound as a warning sign of the dangers and disconnected the electricity network. From the design of a safety tool for power distribution panels due to high temperatures or sparks as well as the expected rate of fire outbreaks can be prevented.

Состояние разработок двухфазных систем терморегулирования космических аппаратов

2021 ◽  
pp. 36-51
Author(s):  
Рустем Юсуфович Турна ◽  
Артем Михайлович Годунов
Keyword(s):  
Heat Transfer ◽  
Control System ◽  
Power Consumption ◽  
High Power ◽  
Single Phase ◽  
Thermal Control ◽  
Two Phase ◽  
Thermal Control System ◽  
Intensification Of Heat Exchange ◽  
Large Heat

The progress of space technology is leading to more and more energy-equipped spacecraft. The International Space Station already has the capacity of solar panels of more than 100 kW. Autonomous spacecrafts and satellites (including stationary ones) have the capacity of power units of kW, in the nearest future - more than 10 kW. Forced heat transfer using single-phase liquid coolants is still considered as the main method of thermal control on high-power spacecraft (SC). Single-phase mechanically pumped fluid loop is a fully proven means of thermal control of spacecraft with a moderate heat load. A significant disadvantage of such systems is that the coolant temperature varies significantly within the loop. The temperature difference can be reduced by increasing the coolant flow rate, but for this, it is necessary to increase the pump capacity, which inevitably leads to an increase in power consumption, pipeline diameters, and weight of the system as a whole. In the case of spacecraft with high power capacity (more than 5-10 kW) and large heat transfer distances (10 m and more), a two-phase mechanically pumped fluid loop for thermal control is more preferable in terms of weight, the accuracy of thermoregulation, power consumption (and other parameters). The use of a two-phase loop (2PMPL) as a spacecraft thermal control system allows to reduce significantly mass and power consumption for own needs in comparison with a single-phase thermal control system (TCS). The effect is achieved due to the accumulation of transferred heat in the form of latent heat of vaporization and intensification of heat exchange at boiling and condensation of coolant. The article provides a critical review of published works on 2PMPL for spacecraft with high power (more than 5...10 kW) and a large heat transfer distance (more than 10...100 meters) from 1980 up to nowadays. As a result, a list of the main problems on the way of practical implementation of two-phase loops is formed.

Retrofit of a High Power Nd:Glass Laser System with Liquid Crystal Polarizers

2008 ◽  
pp. 15-15-8 ◽  
Author(s):  
SD Jacobs ◽  
KA Cerqua ◽  
TJ Kessler ◽  
W Seka ◽  
R Bahr
Keyword(s):  
Liquid Crystal ◽  
High Power ◽  
Laser System ◽  
Nd:Glass Laser

Design of driving power and temperature control system for high power semiconductor laser

2018 ◽  
Vol 47 (10) ◽  
pp. 1005003
Author(s):  
张 龙 Zhang Long ◽  
陈建生 Chen Jiansheng ◽  
高 静 Gao Jing ◽  
檀慧明 Tan Huiming ◽  
武晓东 Wu Xiaodong
Keyword(s):  
Control System ◽  
Semiconductor Laser ◽  
Temperature Control ◽  
High Power ◽  
Temperature Control System ◽  
Power Semiconductor

scholarly journals Energy balancing in modular multilevel converter systems

2017 ◽  
Vol 65 (5) ◽  
pp. 685-694
Author(s):  
P. Blaszczyk ◽  
K. Koska ◽  
P. Klimczak
Keyword(s):  
Control System ◽  
High Voltage ◽  
High Power ◽  
Power Converter ◽  
Modular Multilevel Converter ◽  
Energy Balancing ◽  
Multilevel Converter ◽  
Test Setup ◽  
Clear View ◽  
Hierarchical Levels

Abstract The modular multilevel converter (MMC) is a well-known solution for medium and high voltage high power converter systems. This paper deals with energy balancing of MMCs. The analysis includes multi-converter systems. In order to provide clear view, the MMC control system is divided into hierarchical levels. Details of control and balancing methods are discussed for each level separately. Finally, experimental results, based on multi-converter test setup, are presented.

Embedded Control System for Flash Lamp Pumped Solid-State Nd:Glass LASER Power Supply

2018 ◽  
Author(s):  
Oishi Chowdhury ◽  
Yogesh Sahu ◽  
Subhash Maskawade ◽  
M. S. Ansari ◽  
Priti Shahane
Keyword(s):  
Control System ◽  
Solid State ◽  
Power Supply ◽  
Laser Power ◽  
Flash Lamp ◽  
Embedded Control ◽  
Embedded Control System ◽  
Laser Power Supply ◽  
Nd:Glass Laser

High-Intensity Neutron Fields for Calibrating the Detectors of a Standard Control System of High-Power Nuclear Reactors

2003 ◽  
Vol 46 (6) ◽  
pp. 739-747
Author(s):  
V. D. Sevast'yanov ◽  
A. E. Volkov ◽  
N. V. Petrunin ◽  
V. F. Shikalov ◽  
M. G. Mittelman ◽  
...  
Keyword(s):  
Control System ◽  
High Power ◽  
High Intensity ◽  
Nuclear Reactors
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