نتایج جستجو برای: primary resonance
تعداد نتایج: 845231 فیلتر نتایج به سال:
Primary Resonance Analysis of Permanent Magnet Synchronous Motors Caused by Unbalanced Magnetic Pull
The dynamic behaviors of permanent magnetic synchronous motors considering unbalanced pull have been extensively investigated. However, the harmonics and cogging effects are ignored stator rotor assumed to be smooth cylinders. In this research, an analytical expression is obtained. Based on model, motion equations system established. natural frequency frequency-response analyzed by average meth...
PURPOSE To our knowledge the role of magnetic resonance imaging as a first line screening test for prostate cancer is unknown. We performed a pilot study to evaluate the feasibility of prostate magnetic resonance imaging as the primary screening test for prostate cancer. MATERIALS AND METHODS We recruited unselected men from the general population. Prostate multiparametric magnetic resonance ...
This paper proposes a novel Fault Current Limiter (FCL) for the application on distribution networks to control voltage sags at the Point of Common Coupling (PCC) during faults. This new FCL is based on series resonance including resonance transformer and series capacitor. So, by proper design of the series resonance LC tank, the fault current is limited to an acceptable level. The FCL operatio...
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