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 article presents a recovered organize policy for mutually the rotor side converter (RSC) and grid side converter (GSC) of a issued doubly fed induction generator (DFIG)-found wind energy conversion system (WECS) applying Genetic Algorithm (GA) method. The main point of this organize plan is to trail the finest power removed from the wind according to the power-speed arch characteristic of the...
Recent grid code particularly established for high penetration of renewable power generation in the power system demand the network support similar to conventional generator in steady state and dynamic operations. voltage instability is one of the major concerns with huge amount of wind power penetration in the existing power system which is due to insufficient amount of reactive power. Modern wind...
In this paper a control strategy of a wind turbine based on Doubly-Fed Induction Generator (DFIG) supply with unbalanced grid voltage is presented. In the proposed control strategy, the rotor side converter (RSC) is able to keep sinusoidal stator and rotor currents and also remove the pulsations in either stator active power or stator reactive power (this case eliminates the oscillation in electromagnetic...
Variable-speed wind turbine (VST) with doubly-fed induction generator (DFIG) is one type of wind power that capable of producing electrical energy efficiently, capable of controlling real and reactive power generator, and improves the power quality. However, DFIG wind turbine has a variable-frequency AC / DC / AC converter (VFC) and IGBT switches that very sensitive to overcurrent which occur during...
This paper presents a new control strategy for controlling the active power and reactive power of a Doubly Fed Induction Generator (DFIG) used in wind energy conversion systems (WECS). By controlling the load angle delta between the output voltage of the inverter and grid voltage, active power as well as reactive power of the grid can be controlled. Microcontroller NXP P89v51RD2 is used as a tool...
Power frequency transformer is necessary when doubly fed induction generator (DFIG) connects with high-voltage ac grid. However power frequency transformer possesses many undesirable properties such as bulky size, environmental concerns. Additionally, the wind farms need reactive power compensation, such as static synchronous compensator (STATCOM). In this paper, the DFIG converter system with integrated...
In this paper the stability of voltage and frequency in Doubly fed induction generator for a variable speed wind turbine in stand-alone mode is analyzed and simulated. Important equations governing on the stand-alone structure has been discussed and then the control loops of Rotor Side Converter (RSC) and Load Side Converter (LSC) are analyzed and designed. Two methods of direct and indirect stator...
This paper focuses on the development of maximum wind power extraction algorithms for variable speed wind power generation systems. A review of different maximum wind power extraction algorithms is presented in this paper, based on which an intelligent maximum power extraction algorithm is developed to improve the system performance and to facilitate the control implementation. As an integral part...
The use of doubly fed induction generators (DFIGs) in large wind energy conversion systems (WECS) has significantly increased during the last few years. The DFIG is interfaced to the AC network through a grid side voltage source converter (GSC) and a rotor side voltage source converter (RSC) to enable the variable speed operation of the wind turbine. Moreover, it provides reactive power support to...
Doubly-fed induction generator (DFIG) based wind power generation is connected to power grid via an electrical conversion system which consists of two back-to-back connected voltage source converters, i.e., rotor side converter (RSC) and grid side converter (GSC). Both converters have the same topology and working principles with different functions during operation. Hence, the characteristics 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.