The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The induction motor with skewed rotor bars is an effective motor structure for eliminating the slot harmonic fields, and the resulting noise and vibration. 2-D multi-slice finite element method (FEM) is typically used to analyze the performance of the induction motor with skewed rotor bars. However, in order to achieve high accuracy, the number of the slices is generally very high, which is also a...
Current crowding of a micro spring pressure contact under high current is studied. The spring conducts >; 250 mA electrical current between chips, has large mechanical compliance (>; 30 μm) compared to other packaging technologies, and fits in a 180 μm pitch 2d array. At 250 mA and 65°C, daisy chains of 134 spring contacts in a silicon package show stable resistances and hot spot temperature...
This paper outlines a systematic procedure for the design of a toroidal magnet for Superconducting Magnetic Energy Storage System and presents the optimum design for a 10 MJ class high temperature superconductor (HTS) magnet. The main magnetic component which influences the maximum critical current was investigated. Stray field and operating current needed in a toroidal magnet with different number...
The induction motor is commonly operated at variable voltage and variable frequency state at present. The broken rotor bars fault is one common fault in the operation state. The electromagnetic and thermal characteristics of induction motor in broken rotor bar condition are very important fault characteristics. The electromagnetic field of induction motor at fault is analyzed by finite element method...
We perform thermal analysis in order to understand the thermal behavior of the HTS magnet and improve the thermal stability of the HTS magnet for simulated dynamic experiment of electric power systems. In this paper, the thermal analysis and recovery characteristics in over-current state are analyzed by using the model based on the heat conduction equation and solved using the finite element methods...
Eddy losses in cooling configuration play an important role on the safe operation of conduction-cooled high temperature superconducting magnet. To investigate the relationship between eddy loss and the cooling configuration, the magnet is modeled with four pancakes. The eddy loss of cooling configuration is analyzed by finite element method and an improved configuration of cooling plate is described...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.