| Autor: |
Liu, Haoming, Wu, Yang, Qian, Chengchen, Liu, Xia |
| Zdroj: |
2012 Asia-Pacific Power & Energy Engineering Conference; 1/ 1/2012, p1-5, 5p |
| Abstrakt: |
In a stand-alone micro-grid, due to the difference between peak and valley of the load curve and the intermittence of distributed generations' outputs, there are large fluctuations of the active power difference in a day, which are not beneficial to stable and economic operation of the back-up powers. By installing energy storage (ES) devices appropriately and using effective charge and discharge strategies, it can make back-up power's output stable, which can maintain the micro-grid frequency within the specified range. For this objective, this paper establishes a mathematical model to minimize the active power difference of the stand-alone micro-grid. In the model, it fully takes account of ES's the state of charge (SOC), charge-discharge efficiency and loop control. The model is solved by dynamic programming algorithm and simulated by a case, which verifies the validity of the model and the applicability of dynamic programming algorithm. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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