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In order to accurately estimate the battery parameters, state of charge and power state at different temperatures, a recursive least squares method combined with adaptive extended Kalman filter algorithm based on adaptive forgetting factor is proposed. By correcting and updating parameters in real time, the accuracy of battery parameter identification and state-of-charge estimation is improved. Based on the constraints of the model terminal voltage identification results, the state-of-charge estimation results and the maximum discharge current of the battery, the joint estimation of the battery power state is realized. The test results show that the maximum absolute error of the identification voltage and the maximum absolute error of the state of charge are 62.699 mV and 1.894%, respectively under the dynamic stress test condition. When the continuous discharge time is 5 s, 30 s and 120 s, the average error of battery power is 5.6×10-3 W, 6.5×10-3 W and 8.0×10-3 W, respectively. The proposed adaptive joint estimation algorithm can improve the accuracy of parameter identification and state estimation effectively.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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