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.
This paper analyzes the interaction effect among multiple static var compensator-based damping controllers (SVC-DCs). The overall system is divided into the SVC-DCs and the external system for studies. Theoretical analysis indicates that the increase of the gain of a SVC-DC may cause an unstable control mode oscillation, and installation of another SVC-DC may cause destabilizing interactions between...
This paper describes a method for the highprecision and fast measurement of the damping of a linear oscillator by using harmonic vibrations. The measurement is based on the evaluation of the vibration frequency that corresponds to a specific phase shift. A phase-locked loop controls the phase shift using the excitation frequency as control signal. Since the dynamics of the frequency adjustment is...
This paper presents modification of the conventional model reference adaptive control (MRAC) architecture in order to achieve guaranteed transient performance both in the output and input signals of an uncertain system. The proposed modification is based on the tracking error feedback to the reference model. It is shown that approach guarantees tracking of a given command and the ideal control signal...
This paper carries out an adaptive phase-shifting controller based on the online prony identification for the thyristor controlled series compensation (TCSC) in interconnected grid. Because the frequency deviation of power swings, the controller with fixed parameters isn't robust. So the prony algorithm is present to identify the frequency of inter-area oscillation, then the parameters of controller...
Optical communication systems based on dense wavelength division multiplexing (DWDM) would benefit from the ability to adjust the operating wavelength of a laser transmitter. Previous attempts, including thermal adjustment, etalon based wavelength locking, and various types of optical frequency and phase locked loops such as the Pound-Drever-Hall technique suffer from weaknesses including sensitivity...
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.