The Large Power Station

1918 ◽  
Vol 86 (2229supp) ◽  
pp. 185-185
Keyword(s):  
Power Station ◽  
Large Power

Study on Voice Transmission System of the Optical Fiber for Tube Leakage Monitoring Installment in the Power Station Boile

2011 ◽  
Vol 383-390 ◽  
pp. 260-266
Author(s):  
Yuan Zhe Xu ◽  
Hong Zhen Chen ◽  
Shu Jing Ma ◽  
Chang Jun Zhao
Keyword(s):  
Fiber Optic ◽  
Noise Signal ◽  
Acoustic Resonator ◽  
Positive Pressure ◽  
Power Station ◽  
Large Power ◽  
Acoustic Resonators ◽  
Voice Transmission ◽  
Leakage Monitoring ◽  
And Control

The tube leakage in the large power station boiler is the main reason for unplanned outage of power units. So how to prevent and control the leakage accident has become an important part of ensuring the safe operation of power grid. Sound spectrum analysis is the most commonly used detection method. At the top of the boiler, the temperature is high, and sometimes the positive pressure produced inside the boiler will make ordinary audio sensors particularly easily damaged. This paper designs a system of high temperature resistance fiber optic audio sensor and acoustic resonator. It can determine the parameter of fiber optic audio sensor, and double the leakage noise signal through the design of acoustic resonators. According to the experimental test results and theory, this system can effectively test leakage signal inside the boiler tube, and provide a new idea for leakage detection.

Study of TD-LTE Coverage and Uplink/Downlink Power Budget in High-Speed Train

2014 ◽  
Vol 716-717 ◽  
pp. 1417-1420
Author(s):  
Qun Hou ◽  
Yi Fan Zhou ◽  
Xin Peng ◽  
Long Zhang
Keyword(s):  
High Speed ◽  
Path Loss ◽  
High Gain ◽  
High Speed Train ◽  
Power Budget ◽  
Power Station ◽  
Large Power ◽  
High Gain Antenna ◽  
Working Frequency ◽  
Lte Uplink

The signal coverage technology and the difficulties of TD-LTE coverage in High-speed Train are summarized. The method of the TD-LTE uplink/downlink power budget is mentioned and the path loss and power budget are calculated in ordinary scene and tunnel scene respectively. The results show that in the F working frequency band of the TD-LTE, the maximum path loss of the High-speed Train is allowable to reach 110~130 dB. In the ordinary scene, by using large power station and a high gain antenna, the outdoor coverage radius of TD-LTE is up to 600~1000m. In the tunnel scene, using the leaked cable, the coverage radius of the RRU is up to 500m.

scholarly journals TIDEA: A Control System Fine Tuning Software Tool Applied to a Large Power Station

2001 ◽  
Vol 34 (14) ◽  
pp. 273-278
Author(s):  
Francesco Pretolani ◽  
George Oluwande ◽  
Giambattista Garbossa ◽  
Megan Boardman
Keyword(s):  
Control System ◽  
Software Tool ◽  
Fine Tuning ◽  
Power Station ◽  
Large Power ◽  
Tuning Software
Sign in / Sign up

Export Citation Format

Share Document