ADAPTIVE ALGORITHMS OF CONTROLLING THE SMART LI-ION BATTERY CONTROLLER

2018 ◽  
pp. 104-110
Author(s):  
I. A. Borovoy ◽  
O. V. Danishevskiy ◽  
A. V. Parfenov
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Electric Energy ◽  
Lithium Ion ◽  
Control Device ◽  
Control Algorithms ◽  
Battery System ◽  
Electronic Control Device ◽  
Li Ion ◽  
Cell Balancing

The article substantiates the necessity of organizing the control system of modern lithium-ion batteries. Passive and active methods of cell balancing are described. The method of increase of efficiency of modes of accumulation of electric energy by means of the special electronic control device (the intellectual controller) and its further use for power supply of the functional equipment is considered. The structure of the intelligent controller as a part of the autonomous power supply system with the description of its main functional units and purpose is presented. Practical results of application in the intellectual controller of original adaptive control algorithms defining modes of operation of lithium-ion drives depending on various environmental conditions are resulted. The results of the analysis obtained by the results of experimental operation of the battery system, reflecting the qualitative and quantitative advantages of the proposed method.

Hybrid System of Proton Exchange Membrane Fuel Cell (PEMFC) with Battery for Portable Power Supply

2018 ◽  
Vol 7 (3.34) ◽  
pp. 542 ◽  
Author(s):  
Prakash Thapa ◽  
Sung Gi Kwon ◽  
Jin Lee ◽  
Gye Choon Park
Keyword(s):  
Fuel Cell ◽  
Hybrid System ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Advanced Technology ◽  
Li Ion Battery ◽  
Battery System ◽  
Li Ion ◽  
Continuous Power

Background/Objectives: The combustion of fossil fuels and increased number of advanced technology leads to the global warming and climate change. So, to reduce the greenhouse gas emission and conserve the energy we need to use green energy like fuel cell and Li-ion battery system. This hybrid system consists of PEM fuel cell stack, Li-ion battery and bidirectional step up converter and can be used stationary as well as mobile equipment like vehicles.Methods/Statistical analysis: For the analysis of hybrid PEMFC/ Li-ion battery power supply system, portable embedded motor is proposed in this paper. The modeling, design, implementation and performance of hybrid system are demonstrate by using experimental results as well as MATLAB/Simulink.Findings: The simulation results shows that hybrid fuel cell-battery system could provide the continuous power to the sudden changing load and protect the devices. The results also shows that, bidirectional controller can successfully control the fuel cell output and maintain the state of charge of battery at a constant level which provides the significant efficiency of the hybrid power supply system and increased the life-cycle of the system more than 35%.Improvements/Applications: To improve the fuel cell system performance we need to provide the favorable conditions of temperature, pressure, humidity and control the flow rate of reactant gausses. Similarly, due to internal resistance, temperature, material used in manufacturing process, charging and discharging strategy reduces the efficiency as well as life of the battery pack. By using proper voltage balancing methodology we can maintain the similar voltage and prevent from irregular charging. 

Using super-capacitor units in the power supply system of re-entry vehicle of a crew transportation spacecraft

2020 ◽  
pp. 84-91
Author(s):  
Egor S. KHAVANOV ◽  
Roman A. BESCHASTNY ◽  
Dmitry A. FATEEV
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Lithium Ion ◽  
Supply System ◽  
Soft Landing ◽  
Energy Storage Devices ◽  
Super Capacitor ◽  
Math Model ◽  
Ion Storage ◽  
Li Ion

The paper presents a configuration for the Power Supply System (PSS) of a Re-entry Vehicle (RV) of a Crew Transportation Spacecraft (CTS) based on expendable batteries and autonomous current sources specially designed to support electrical pulsed loads of CTS RV during descent. The paper reviews some special features of such a configuration. It present a CTS RV PSS option which has hybrid energy storage devices based on Li-ion storage battery and Super-Capacitor Units (SCU) packaged in a single housing. It present a CTS RV PSS option which has Li-ion storage batteries to support steady-state onboard loads and patch cables based on super-capacitors to support pulse loads (initiation of pyros of the CTS RV soft landing thrusters). Schematics have been developed for the patch cable with a super-capacitor unit (SCU–patch cable), which were used to refine its electrical parameters to take into account the highest pulsed load requirements for an RV by constructing a math model of the SCU–patch cable in MATLAB/Simulink and running a series of simulations. The paper presents simulation results drawing conclusions about the practicability of using such a device. Key words: reentry vehicle, patch cable, super-capacitor unit, lithium-ion battery, crew transportation spacecraft, math model.

Energy Equalization Circuit with Multiple Primary Windings for Li-Ion Battery System

2013 ◽  
Vol 380-384 ◽  
pp. 3374-3377
Author(s):  
San Xing Chen ◽  
Ming Yu Gao ◽  
Guo Jin Ma ◽  
Zhi Wei He
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Battery Pack ◽  
Li Ion Battery ◽  
Battery System ◽  
Multiple Primary ◽  
In Series ◽  
A Cell ◽  
Li Ion ◽  
Number Of Cells

In this paper, a cell equalization circuit based on the Flyback topology is proposed for the Lithium-ion battery pack. Multiple transformers are employed in this circuit, equal to the number of cells in the pack. All the primary windings are coupled in series to provide the equalizing energy form the whole battery pack to the specific under charged cells. The structure and principle of the circuit is discussed, finally a prototype of four cells is presented to show the outstanding equalization efficiency of the proposed circuit.

scholarly journals Energy profiles as a method for minimizing weight of hybrid power supply systems

2017 ◽  
pp. 5-13
Author(s):  
Arkadiusz Adamczyk
Keyword(s):  
Power Supply ◽  
Energy Demand ◽  
Power Supply System ◽  
Electric Energy ◽  
Energy Profiles ◽  
Supply Systems ◽  
Alternative Solutions ◽  
Analysis Of Performance ◽  
Source Of Information

This article presents an analysis of energy demand by a group of portable military use appliances. This analysis was used by the author to offer an solution aimed at reducing the weight of the power supply system. This solution is based on energy profiles which were derived from the analyses and measurements, and on applying appropriately modified hybrid supply sources. Catalogue data are often used in support of an analysis of performance of electronic appliances. For a user, documents prepared by a manufacturer are the main source of information concerned with the amount and quality of electric energy sources required for the appliance to work properly. Investigations carried out in real conditions often verify this data, which provides a base for seeking alternative solutions in the course of designing new sources of power, e.g. such as the ones proposed in the article.

Justification of the power supply system for life support of rescue units and the injured population during field deployment

2021 ◽  
Vol 92 ◽  
pp. 142-155
Author(s):  
V. A. Sednev ◽  
Keyword(s):  
Electric Power ◽  
Power Supply ◽  
Power Supply System ◽  
Life Support ◽  
Electric Energy ◽  
Supply System ◽  
Energy Sources ◽  
Electric Power Supply ◽  
Injured Population ◽  
Temporary Accommodation

Introduction. Increasing of number, scale and duration of the consequences of emergency situations associated with the violation of the conditions of normal living of people requires the creation of temporary field accommodation points for the affected population and rescue units. At the same time, electric power supply in field temporary accommodation facilities plays a crucial role in the complex of tasks and measures aimed at providing life to the injured population and rescue units. At the same time, there are no mobile autonomous sources of electric energy for providing life support to people in the field in the organizational and staff structure of rescue units, and the existing sources of electric energy in the complexes of equipment used in areas of emergency situations cannot be used for these purposes. Therefore, it is necessary to develop a scientific and methodological approach to determine necessary and sufficient number of sources of electric energy for the power supply of the life support of the injured population and rescue units when they are placed in field temporary accommodation points. The purpose of the study. Electric power supply of field temporary accommodation points for the injured population and rescue units, ensuring the required reliability of electric power supply, maximizing its efficiency in the conditions of possible resource constraints and minimizing the influence of the uncertainty factor in the planning of electricity consumption. Research methods. The main provisions of the calculation of electrical loads, system theory, set theory, probability theory and the apparatus of mathematical statistics. The results of the study. A methodology has been developed that allows to justify the power of electric energy sources for the power supply of field temporary accommodation points for the injured population and rescue units, rational options for the power supply system, the nomenclature and number of electric energy sources for the life support of people in the field; to calculate the electric network; to evaluate the operation of the power supply system, based on the probability of failure-free operation of the source of electric energy; to justify the composition of engineering means to ensure the creation of the power supply system. Conclusion. The scientific and methodological approach for determining the composition of electric energy sources for the power supply of life support for the injured population and rescue units when they are placed in field temporary accommodation points is justified, which also allows to resolve the contradiction between the need to organize the power supply of life support for people in temporary accommodation points and the lack of a reasonable structure of electric energy sources for these purposes. Keywords: temporary accommodation point, injured population, rescue formation, consumers, electric power supply, organization

The eff ect of time reducing of train-to-train margin on the technical and energy indicators of the system of traction unregulated and regulated power supply

Innotrans ◽  
2020 ◽  
pp. 51-55
Author(s):  
Irina A. Baeva ◽  
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Electric Energy ◽  
Voltage Control ◽  
Supply System ◽  
Electric Locomotive ◽  
Voltage Level ◽  
Traction Power Supply System ◽  
Traction Power Supply ◽  
Traction Power

The article considers the effect of reducing the time of train-to-train margin on the specific consumption of electric energy and the voltage level on the currentcollecting gear of an electric locomotive. Simulation of the operation of the DC 3.0 kV traction power supply system is carried out in the KORTES software package. The section of the Sverdlovsk railway with an operating system of contactless automatic voltage control was taken for the study. The article defines the rational time of the train-to-train margin for an unregulated and regulated system of traction power supply. The energy efficiency of the system of contactless automatic voltage control was evaluated.

Sign in / Sign up

Export Citation Format

Share Document