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 represents the estimation method based on a benchmark system for control of active power filter (APF). The active power filter consists of a three-phase voltage source converter operating under pulse-width modulation. The method allows the harmonic prediction is employed to allow accurate harmonic compensation despite controller latencies. The current control is done in time domain. A three-phase...
A comprehensive power quality controller combined with Thyristor Controlled Reactors (TCR) and Resonant Impedance Type Hybrid Active Filter (RITHAF) is proposed in this paper for power distribution system. The RITHAF topology presented in the paper is different from the conventional Active Power Filter (APF). The basic of the new RITHAF topology is to add a Fundamental Series Resonance Circuit (FSRC)...
This paper presents a hybrid compensator for harmonic, reactive power and unbalance under dq0 coordinates. This compensator is applicable to un-balanced three-phase three-wire or three-phase four-wire system. A novel calculating method is developed to obtain harmonic, reactive power and unbalanced components under dq0 co-ordinates. A practical hybrid compensator on the basis of theory introduced above...
A novel topological structure of Active Power Filter (APF) in alpha-beta coordinate is presented based on transformation of three phase static A-B-C coordinate to two phase static alpha-beta coordinate. The topological structure adopts two groups of single-phase inverter as main devices of APF, and can realize transformation of current source from two phases to three phases by using a special transformer...
To real time detect the positive sequence of fundamental waveform is key technologies for power quality compensating mechanism. The three-phase positive sequence detecting method without phase lock loop (PLL) based on the dq0 coordinate transformation was put forward in this paper. To design control system of series voltage compensating mechanism with the method, the equipment can well achieve wave...
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.