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| Content Provider | IET Digital Library |
|---|---|
| Author | Fan, Feilong Tai, Nengling Huang, Wentao Zheng, Xiaodong Fan, Chunju |
| Abstract | Multi-battery energy storage systems (MBESSs) are widely adopted to overcome the uncertainty problem of renewable energy sources. However, state-of-charge (SOC) imbalance issue of MBESSs brings great challenges to the optimal dispatching strategy and the lifetime management strategy for the MBESS. This study proposes a distributed equalisation strategy for the MBESSs to solve the stated problem. An equitable operation optimisation model is proposed in the distributed equalisation strategy. The equitable optimisation model can be simplified as a convex quadratic optimisation problem. An equitable approximation method is utilised to solve the convex quadratic optimisation problem according to the Karush–Kuhn–Tucker optimality conditions. Based on the equitable approximation method, the SOC balance process is distributed into different iteration steps. The iteration of the SOC balance process is implemented by the communication system connecting the distributed management systems (DMSs). The distributed SOC balance step is implemented by the DMSs of the batteries. The proposed strategy is validated by a hardware-in-the-loop simulation system based on the RT-LAB. Test results show that the proposed strategy ensure the SOC balance and improve the robustness of the MBESS. |
| Starting Page | 1986 |
| Ending Page | 1990 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 16, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8684 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-24 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Approximation Theory Battery Management System Convex Programming Convex Quadratic Optimisation Problem Distributed Equalisation Strategy Distributed Management System Distributed SOC Balance Step DMS Equitable Approximation Method Equitable Operation Optimisation Model Hardware-in-the-loop Simulation System Interpolation And Function Approximation Iteration Steps Iterative Method Karush-Kuhn-Tucker Optimality Condition Lifetime Management Strategy MBESS Multibattery Energy Storage System Numerical Analysis Numerical Approximation And Analysis Optimal Dispatching Strategy Optimisation Technique Power Generation Dispatch Quadratic Programming Renewable Energy Source RT-LAB Secondary Cell SOC Balance Process State-of-charge Imbalance Issue Uncertainty Problem |
| Content Type | Text |
| Resource Type | Article |
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