Optimal Load Discharge of a Capacitive Energy Storage Device

2019 ◽  
Author(s):  
Eddy H. Trinklein ◽  
Wayne W. Weaver ◽  
Gordon G. Parker ◽  
Matthew J. Heath ◽  
Rush D. Robinett ◽  
...  
Keyword(s):  
Energy Storage ◽  
Storage Device ◽  
Energy Storage Device ◽  
Capacitive Energy Storage ◽  
Optimal Load ◽  
Load Discharge

scholarly journals Inertial Capacitive Energy Storage Device for a Shunting Diesel Locomotive

2019 ◽  
Vol 17 (3) ◽  
pp. 82-87
Author(s):  
I. P. Popov
Keyword(s):  
Energy Efficiency ◽  
Energy Storage ◽  
Power Plant ◽  
Operating Mode ◽  
Theoretical Background ◽  
Storage Device ◽  
Energy Storage Device ◽  
Diesel Locomotive ◽  
Frequent Change ◽  
Capacitive Energy Storage

The relatively frequent change in the operating mode of a shunting diesel locomotive determines efficiency and feasibility of equipping it with an energy storage device. In addition to smoothing the load on the power plant, the energy storage device will allow to regenerate energy during braking, thereby increasing energy efficiency of a shunting diesel locomotive. This topic is frequently discussed in World of Transport and Transportation Journal, that is the evidence of its timeliness. The theoretical background for developing an inertial capacitive energy storage device, which is technically designed as a DC machine with a super flywheel that makes it possible to smooth the load on the power plant, thereby reducing its power and mass and dimensions, is presented. The increase in mass thanks to the energy storage device can be compensated by a decrease in the mass of the engine. As the diesel locomotive is equipped with electromechanical transmission, then it minimizes the framework of development for it of a considered inertial capacitive drive, making it even more advantageous. The article provides initial calculations and circuits.

scholarly journals Shape and Measurement Monitoring of Inrush Current Characteristics of a Battery-Capacitive Energy Storage Device with Two-Channel Digital Oscilloscope

2021 ◽  
Vol 12 (4) ◽  
pp. 286-291
Author(s):  
V. P. Vasilevich ◽  
M. V. Zbyshinskaya
Keyword(s):  
Energy Storage ◽  
Lithium Ion ◽  
Storage Device ◽  
Inrush Current ◽  
Energy Storage Device ◽  
Capacitive Energy Storage ◽  
Digital Oscilloscope ◽  
Measurement Monitoring ◽  
Current Characteristics ◽  
Testing Bench

The main reason of voltage instability in stand-alone power supply systems is the electric drive motors inrush current, which are usually higher than their nominal value. The most reasonable way to solve this problem is using capacitive energy storage. The purpose of research is shape and measurement monitoring of battery-capacitive energy storage device inrush current characteristics. Parameters comparative analysis for lithium-ion battery (LIB) part and capacitive part of the energy storage device was holding with the twochannel digital oscilloscope.Measuring testing bench included parallel connected LIB part and capacitive part of the storage device and connected to the power source. The LIB part of the storage device is made on the basis of the ATOM 10 multifunctional motor drive device of the new generation, which contains 15 V lithium-ion battery and 9.4 A·h capacity. The capacitive part of the storage device is the INSPECTOR Booster supercapacitor with an 80 F electrostatic capacitance and 15.5 V voltage. A 12 V AC/DC step-down converter was used as a power source. An electric air automobile compressor M-14001 was used as a current drain. The testing bench measuring part consisted of a two-channel digital oscilloscope and two standard measuring shunts with 15000 μOm resistance serial attached to LIB part and capacitive part of the storage device. Shape and measurement monitoring of inrush current characteristics of LIB part and capacitive part of the energy storage device was held synchronously using a two-channel digital oscilloscope with recording data to FAT32 file system USB flash drive. Obtained data was transferred to a personal computer and analyzed.The measurement results showed that 82.3 % of the energy losses compensation of the motor start is taken over by the capacitive part of the energy storage device, what makes longer LIB’s life. By adjusting the oscilloscope sweep trace index you can analyze more detailed time response shape and its duration. The values of the inrush current amplitudes were calculated in proportion to the voltage drop on the shunts and their resistances.The developed method for monitoring shape and measurement inrush current characteristics can be used in various technical applications: smart stand-alone photovoltaic system, uninterruptible power supply devices, electric drive control systems, etc.

Dual Hybrid Energy Storage Device with a Battery–Electrochemical Capacitor Hybrid Cathode and a Battery-Type Anode

2021 ◽  
Author(s):  
Bincy Lathakumary Vijayan ◽  
Amina Yasin ◽  
Izan Izwan Misnon ◽  
Gopinathan M. Anilkumar ◽  
Fathalla Hamed ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Capacitor ◽  
Storage Device ◽  
Energy Storage Device ◽  
Hybrid Energy ◽  
Hybrid Energy Storage
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