Photovoltaic active power control based on BESS smoothing
| Autor: | Shi Jiangfeng, Fa Ladi'er, Haoqing Zhu, Weiguo He, Kwang Y. Lee, Linjun Shi, Keman Lin, Chun Wang, Feng Wu |
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| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Computer science 020208 electrical & electronic engineering Photovoltaic system 02 engineering and technology AC power Compensation (engineering) Electric power system 020901 industrial engineering & automation Control and Systems Engineering Filter (video) Control theory 0202 electrical engineering electronic engineering information engineering Active power control Smoothing |
| Zdroj: | IFAC-PapersOnLine. 52:443-448 |
| ISSN: | 2405-8963 |
| DOI: | 10.1016/j.ifacol.2019.08.250 |
| Popis: | The power fluctuation of photovoltaic (PV) is harmful to power systems, so the battery energy storage system (BESS) was applied to smooth power fluctuation in PV. At present, the main ways to get configuration of BESS are low-pass filter and spectrum compensation, which have some drawbacks. In this paper, a method that combines empirical mode decomposition (EMD) with wavelet analysis (WA) is proposed to get grid-connected active power expectation of PV properly. Based on simulation of PV output, the minimum sizing of BESS is determined by different batteries’ state-of-charging (SOC) and efficiency. Comparing traditional low-pass filter and spectrum compensation, this method not only acquires the capacity of BESS accurately, but also improves the effect to smoothing power fluctuation of PV effectively. Finally, a case is proposed to verify correctness of the theory. |
| Databáze: | OpenAIRE |
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