Power Supply System Based on Photovoltaic Solar Panels and Current Transformers

2013 ◽  
Vol 816-817 ◽  
pp. 1235-1238
Author(s):  
Wei Tang ◽  
Jian Wen Wu ◽  
Chao Xin
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Low Voltage ◽  
Supply System ◽  
Lead Acid Battery ◽  
Solar Panels ◽  
Current Transformers ◽  
Intelligent Terminal ◽  
Perturb And Observe ◽  
Terminal Equipment

Aimed at the low voltage power supply of the intelligent terminal equipment controller in 10kV Distribution Power Grid, a new power supply system, which consists of 24V Lead-acid battery charged by photovoltaic (PV) solar panels and current transformers (CT), is researched in this paper. To maximize the charging power, three points Perturb and Observe algorithm with alterable perturbation step is applied. In the CT charging module, a hysteresis comparator and a discharge circuit are properly utilized to stabilize the charging voltage. At the end of this paper, the power supply system is experimentally validated, and can provide 17.45W charging power to battery with efficiency of 84.26%.

Study on Energy Saving and Emission Reduction of EP Low-Voltage Power Supply System in Power Plant

2011 ◽  
Vol 219-220 ◽  
pp. 1109-1112
Author(s):  
Man Yin Hu ◽  
Chao Du ◽  
Bo Yang
Keyword(s):  
Energy Saving ◽  
Power Supply ◽  
Emission Reduction ◽  
Power Supply System ◽  
Electrostatic Precipitator ◽  
Low Voltage ◽  
Status Quo ◽  
Supply System ◽  
Technical Solutions ◽  
Technical Measures

According to operation situation of power plant’s EP, the technical measures of energy saving in low-voltage power supply system have been analyzed over the years. Based on the classical theory of electrostatic precipitator and the operating status quo of EP, the paper has been focused on the principles of energy-saving and emission-reduction EP, established high-voltage current supply energy-saving and emission-reduction EP dust removal efficiency of mathematical models, analyzed energy saving and emission reduction technical measures of the low voltage device and proposed the technical solutions. It provided reference for design, adjustment, operation and energy saving of power plant’s EP.

scholarly journals Minimisation of the LCOE for the hybrid power supply system with the lead-acid battery

2017 ◽  
Vol 19 ◽  
pp. 01030 ◽  
Author(s):  
Leszek Kasprzyk ◽  
Andrzej Tomczewski ◽  
Karol Bednarek ◽  
Artur Bugała
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Lead Acid Battery ◽  
Hybrid Power ◽  
Lead Acid

Short-Circuit Current Criterion under Condition of Protection Action in Low Voltage Power Supply System

2013 ◽  
Vol 860-863 ◽  
pp. 1914-1918
Author(s):  
Yi Rong Su ◽  
Jie Yu ◽  
Jun Liu ◽  
Gan Zhou ◽  
Li Ping Zhan ◽  
...  
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Low Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Supply System ◽  
Circuit Breakers ◽  
Level Of Automation ◽  
Current Criterion ◽  
The Impact

In order to improve the level of automation and security of the low voltage power supply system, this paper proposed the calculation method of short-circuit current criterion under condition of protection action. Firstly, the impact of circuit breakers on the short-circuit current is analyzed. Then, the current criterion under condition of short-circuit protection are given. Finally, using a special case, the calculation process of aforementioned current criterion is given in detail.

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