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.
Playing a fundamental role in mathematic optimization, linear programming (LP) problems have been widely encountered in various scientific disciplines and industrial applications. Although static LP problems have been investigated extensively and applied to abundant scientific fields through the last decades, researches concerning time-varying linear programming (TVLP) problem solving are in relatively...
In order to meet the requirements of operational test on extra high voltage DC transmission valve, we need to establish a special synthetic test system. This system is an enormous test system that consists of a voltage source and a current source, and its control system needs to satisfy not only the functional requirements but also safety demands. This system is extremely complicated. According to...
As an important issue of inverse kinematics, the self-motion planning and control (SMPC) of redundant manipulators has been widely investigated to perform various subtasks. But there are still some weaknesses in SMPC researches [e.g., physical limits are usually not taken into consideration, and joint-velocity profiles are mutational (or say rigorously, nondifferentiable) at some time instants], which...
On the basis of incompressible Leonov constitutive relation, the numerical model was established for the mold filling in the injection molding of viscoelastic polymers. The finite element/finite difference/control volume methods were adopted for numerical simulation of the distribution of pressure, shear stress and first normal stress difference. A center-gated disk filling flow was taken as a benchmark...
Considering the poor dynamic performance and the uncertainties of the parameters of three-phase PWM rectifiers, this paper study the mathematical model of 3-phase PWM rectifiers and proposed the sliding-mode variable structure control. It can make system quick, steady and have a robust control performance against the uncertainties of the parameters. Consequently the current wave of electricity net...
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.