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.
In most of the power system of three (generation, transmission, substation), transformation is particularly important to the development of substation automation technology to highlight the need to also. This design use of PLC for the substation of the simulation module of the simulation was carried out in the collection, and monitoring interface to monitor the use of PLC for the substation of the...
To cope with all power quality issues to be aroused from voltage sag, rise, transient power interruption and other disturbances of power distribution system, this article addresses a device designed to control the quality of power supply from power distribution net. Like inductor and capacitor, this device can be series connected to introduce a controllable voltage that will compensate with voltage...
PID-fuzzy adaptive yaw control algorithm is used and complete wind wheel position adjustment in order to automatically track the changes of wind direction. Input to the change of wind direction and wind direction, the output is kp, ki and kd, its fuzzy adaptive controller are designed. The simulation software used in this paper is Matlab-Simulink 7.0. Wind turbine to follow changes in wind direction...
As China national economy and technology are under rapid development, all industries are requesting better and better quality of electrical energy. Therefore, research on technology for quality regulation and control of electrical energy of power distribution network becomes first priority. The optimized algorithm of controller as stated in this article for quality regulation and control of electrical...
Characterized by simple structure, stable operation and low production cost, switched reluctance motors (SRM) have a vast potential for application. An excessive running noise, however, is emitted due to their large torque ripple in running. The key to eliminating such noise is to limit the torque ripple in addition to optimization of the design of the motors. In general, it is difficult to define...
A new method for extracting fingerprint minutiaes is proposed. After acquiring binary image, we thin the ridges and valleys respectively, and extract ridge bifurcations and valley bifurcations as the key minutiaes from the ridge thinned image and valley thinned image. The method is applied in fingerprint verification system about examinee, whose principle and basic structure, software and hardware...
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.