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| Content Provider | IET Digital Library |
|---|---|
| Author | Vazini, Hossein Asadi, Mehdi Karimadini, Mohammad Hajisadeghian, Hossein |
| Abstract | This study presents a control system to track the sinusoidal ripple current (SRC) of lithium (Li)-ion batteries. In this method, a combination of a DC and a sinusoidal ripple current is injected to the battery. By choosing the appropriate frequency, the minimum AC impedance of the battery is obtained. This study, the impact of temperature has been considered as a protection criterion in the proposed charge algorithm, also a state-space model of the charger system has been developed, and finally a pole placement controller has been proposed to control charging current. To evaluate the design, a laboratory setup has been implemented to obtain experimental results from a 1 kW Li-ion battery pack. Also, simulations have been carried out by Simulink/MATLAB. The proposed pole placement control method for tracking of SRC and the optimal frequency detection algorithm have been designed and tested on a practical 10 Ah Li iron phosphate battery pack in different charge modes. In addition, results of the conventional proportional–integrator (PI) controller have been compared with the proposed controller. Both simulation and experimental results show the effectiveness of the proposed algorithm and control system to track SRC reference current in all frequencies. |
| Starting Page | 421 |
| Ending Page | 429 |
| Page Count | 9 |
| ISSN | 17554535 |
| Volume Number | 12 |
| e-ISSN | 17554543 |
| Issue Number | Issue 3, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/12/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2018.5626 |
| Journal | IET Power Electronics |
| Publisher Date | 2018-11-15 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Battery Chargers Battery Charges Battery Testers Control of Electric Power System Current Control Electric Current Control Frequency Detection Algorithm Li Iron Phosphate Battery Pack Li-ion Battery Pack Lithium Compound Minimum AC Impedance PI Control PI Controller Pole Placement Control Method Power 1 KW Power Electronics Power Supply Proportional-integral Controller Ripple Current Secondary Cell SRC Reference Current Supervisory Circuit |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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