Lead Acid Battery Analysis Using Spectogram

2015 ◽  
Vol 785 ◽  
pp. 692-696
Author(s):  
Rizanaliah Kasim ◽  
Abdul Rahim Abdullah ◽  
Nur Asmiza Selamat ◽  
N.A. Abidullah ◽  
Tengku Nor Shuhadah Tengku Zawawi

Renewable energy is an alternative option that can be substituted for future energy demand. Many type of battery are used in commerce to propel portable power and this makes the task of selecting the right battery type is crucial. This paper presents the analysis of voltage charging and discharging for lead acid battery using time-frequency distribution (TFD) which is spectrogram. Spectogram technique is used to represent the signals in the time-frequency representation (TFR). The parameter of a signal such as instantaneous root mean square (RMS) voltage, direct current voltage (VDC) and alternating current voltage (VAC) are estimated from the TFR to identify the signal characteristics. This analysis, focus on lead-acid battery with nominal battery voltage of 6 and 12V and storage capacity from 5 until 50Ah. The battery is a model using MATLAB/SIMULINK and the results show that spectrogram technique is capable to identify and determine the signal characteristic of Lead Acid battery.

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-10 ◽  
Author(s):  
Yanghua Lu ◽  
Yanfei Yan ◽  
Xutao Yu ◽  
Xu Zhou ◽  
Sirui Feng ◽  
...  

There is a rising prospective in harvesting energy from the environment, as in situ energy is required for the distributed sensors in the interconnected information society, among which the water flow energy is the most potential candidate as a clean and abundant mechanical source. However, for microscale and unordered movement of water, achieving a sustainable direct-current generating device with high output to drive the load element is still challenging, which requires for further exploration. Herein, we propose a dynamic PN water junction generator with moving water sandwiched between two semiconductors, which outputs a sustainable direct-current voltage of 0.3 V and a current of 0.64 μA. The mechanism can be attributed to the dynamic polarization process of water as moving dielectric medium in the dynamic PN water junction, under the Fermi level difference of two semiconductors. We further demonstrate an encapsulated portable power-generating device with simple structure and continuous direct-current voltage output of 0.11 V, which exhibits its promising potential application in the field of wearable devices and the IoTs.


Author(s):  
Andrew Craig ◽  
Xiaokuan Li ◽  
Patrick Sesker ◽  
Alex Mcinerny ◽  
Thomas DeAgostino ◽  
...  

As society moves into the digital age, the expectation of instantaneous electricity at the flip of a switch is more prominent than ever. The traditional electric grid has become outdated and Smart Grids are being developed to deliver reliable and efficient energy to consumers. However, the costs involved with implementing their infrastructure often limits research to theoretical models. As a result, an undergraduate capstone design team constructed a small-scale 12 VDC version to be used in conjunction with classroom and research activities. In this model Smart Grid, two houses act as residential consumers, an industrial building serves as a high-load demand device, and a lead-acid battery connected to a 120 VAC wall outlet simulates fossil fuel power plants. A smaller lead-acid battery provides a microgrid source while a photovoltaic solar panel adds renewable energy into the mix and can charge either lead-acid battery. All components are connected to a National Instruments CompactRIO system while being controlled and monitored via a LabVIEW software program. The resulting Smart Grid can run independently based on constraints related to energy demand, cost, efficiency, and environmental impact. Results are shown demonstrating choices based on these constraints, including a corresponding weighting according to controller objectives.


2014 ◽  
Vol 599-601 ◽  
pp. 648-651
Author(s):  
Xiao Ying Hu ◽  
Jian Zhong He

Lead-acid battery retreading system is used to improve the discharge performance of lead-acid batteries. And in the system there are too many electrical parameters, such as electric current, voltage and so on, have to been set up. So HMI design plays a significant role in the whole system. This paper offers a method of using DWIN DGUS screen to finish the HMI design of lead-acid battery retreading system. And it introduces the DWIN_V4.9 and OS secondary development platform in detail. Then it describes how to use these two tools to achieve basic functions, such as touching and passwords landing. After applying the HMI design to the system, switching interfaces, using passwords, inputting parameters and other operations all have been achieved successfully.


2013 ◽  
Vol 834-836 ◽  
pp. 1172-1176
Author(s):  
Xu Feng Tong ◽  
A Ru Han Bao ◽  
Lei Yang

Aiming at the current maintenance of the lead-acid batteries on CDMA bases, this paper analyses the main reasons for the battery failure and puts forward the system for the remote monitoring and control of the battery. It introduces the parameters about the battery current, voltage and temperature as well as the power relay working theory. Furthermore, the remote monitoring platform is developed to monitor the battery working states in real time. With the data analyzed, the automatic control will get started to charge/discharge the battery. The system can prolong the working life of the lead-acid battery effectively and improve the battery maintenance efficiency so as to reduce the maintenance cost.


2013 ◽  
Vol 12 (11) ◽  
pp. 2175-2182 ◽  
Author(s):  
Jiakuan Yang ◽  
Xinfeng Zhu ◽  
Lei Li ◽  
Jianwen Liu ◽  
Ramachandran Vasant Kumar

1995 ◽  
Vol 30 (2) ◽  
pp. 299-304 ◽  
Author(s):  
Cameron D. Skinner ◽  
Eric D. Salin

Abstract Soil lead levels were determined on and around a former battery manufacturing site. Lead concentrations ranging from 120 ppm to 5.1’ were found. The highest concentrations were found close to the factory site. When it was possible to obtain samples over a continuous depth range, it was found that lead concentration decreased with depth and that it increased above underground foundations.


Author(s):  
Thomas G. Robins ◽  
M.S. Bornman ◽  
Rodney I. Ehrlich ◽  
Anthony C. Cantrell ◽  
Elma Pienaar ◽  
...  

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