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The DFIG is excited by converter which is connected rotor. The performance of wind turbine is depended on the matching conditions of the DFIG and converter. And the DFIG equivalent circuit parameter will influence the generator electromagnetic design. Based on the equivalent circuit and the test data, this paper put forward a kind of theory and calculation method to separate the equivalent circuit...
The paper studies and makes an automatic temperature verification system based on computer vision in high accuracy temperature measuring to control technique, computer vision measuring technique and digital image processing. In order to acquire the higher temperature accuracy and long-term stability relative to the normal electricity measures, first-class standard mercury thermometers are adopted...
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