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.
KxNa(0.942−x)Li0.058NbO3 ceramic samples were prepared by the solid-state reaction method, and their crystal structures, wave dispersive spectra, and dielectric, ferroelectric, and piezoelectric properties were characterized. The chemical microdomains showed different compositional inhomogeneity, as indicated by the abnormal peaks from the temperature dependence of dielectric constants in the frequency...
In order to validate the time performance of remote controllable cruise missile campaign system, it introduces an Agent-oriented Timed Colored Petri Nets (AOTCPN) modeling method for architecture simulation, and a transform method used to obtain executable AOTCPN model from the static architecture model descript by AUML (Agent Unified Modeling Language). Focusing on the workflow of retargeting cruise...
According to the requirements of movement characteristics during the opening and closing of 40.5 kV vacuum circuit breaker on operating mechanism, this paper designed a new type of motor drive operating mechanism-cylinder linear induction motor (C-LIM) drive mechanism. Based on the characteristics of short trip, strong anti-force, high speed in mechanism, analysis of the motor mechanism movement characteristics...
For getting larger start thrust, meeting high reliability of high-voltage circuit breaker of breaking capacity and mechanical performance, this paper introduces Particle Swarm Optimization (PSO) algorithm in the optimization design of Cylinder Linear Induction Motor(C-LIM) used in circuit breaker operating mechanism. According to the specific character of the optimization design of the motor, Neighborhood...
A novel permanent magnet motor actuator on high voltage circuit breaker is proposed. Based on the characteristics requirement of the circuit breaker, a limited angle permanent magnet brushless DC servo motor actuator is designed. By using the finite element method, the basic characteristics and dynamic simulation of starting are carried out, which the simulation results of the motor (such as electromagnetic...
The linear servo motor drive of high-voltage circuit breaker is designed to realize the opening and closing operation, by which the quicker response ability and the better performance can be obtained. The control system simulation model is developed. Then the hardware of the controller and the control strategy of moving contact based on DSP are designed. Control algorithm of Single neuron PID and...
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.