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Outline
Aiming at the challenges posed by the spatiotemporal randomness of wind resources in large-scale wind power bases in mining areas to the design of high-power wind turbine generators, based on the measured data of a wind farm in a mining area of Inner Mongolia, the adaptive design and optimization research on the 6.0 MW permanent magnet wind turbine generator was conducted. Based on multi-dimensional wind measurement data mining, the joint probability distribution of wind speed, temperature and duration was quantified, a dynamic load spectrum model reflecting the actual wind conditions was established, and with the objectives of improving electromagnetic characteristics and reducing material costs, the coordinated optimal design of coil size and permanent magnet size was carried out. The electromagnetic scheme was verified by finite element simulation, and the design target of 98% efficiency was achieved. The test results show that the errors between the no-load and load characteristics of the two developed prototypes and the simulation results are all within 3%, which verifies the high accuracy of the model. The temperature rise test reveals the temperature field distribution law of the generator under complex operating conditions, and the thermal management and control strategy is formulated accordingly. The study forms a complete technical chain consisting of "data-driven modeling-multi-objective optimization-simulation verification-prototype testing", which not only provides solutions for specific wind farms, but also offers references for the engineering application of high-power permanent magnet wind turbine generators in large-scale wind power bases.
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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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