Full
Outline
The traditional on-load voltage regulation technology has deficiencies such arc, a slow response speed and a low regulation accuracy, which affect the operation reliability of a transformer. Although the novel power electronic transformers have advantages of no arc and fast response, they have a large loss and a high cost. On the basis, a novel single-phase four-column magnetron transformer structure is proposed, which consists of a magnetron reactor and a transformer connected in series. According to the topological structure of the magnetron reactor, the working principle for the magnetron transformer is analyzed, and the circuit equation and electromagnetic equation are deduced. The right-side yoke in this structure can provide an AC flux loop, which is not interfered by the DC flux. The Maxwell and Simplorer in software Ansys are used to conduct field-circuit coupled multi-physics domain co-simulation to analyze the voltage regulation capability of the model, and the harmonic analysis of output voltage is carried out in Simulink. It is verified that the proposed novel magnetron transformer can adjust the output voltage smoothly without arc and without step, and the harmonic content is low.
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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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