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Harmonic Compensation With Zero-Sequence Load Voltage Control in a Speed-Sensor less DFIG-Based Stand-Alone VSCF Generating System Abstract: In this project the speed sensor less DFIG-based stand-alone VSCF generator feeding nonlinear unbalanced loads. DFIG system has three different modifications in the system, i.e., Δ/Y -connected transformer works well with balanced three-phase nonlinear load and singlephase for linear load. In general for generation of wind power (Variable-Speed constant-frequency) using doubly fed induction generators (DFIGs). It is reduced converter size consequent economic advantages. DFIG-based VSCF wind power generation can be provided autonomous applications are supply voltage quality while feeding all possible combinations of loads. To supply nonlinear/unbalanced loads, inject harmonic current through the stator-side converter, while others use the rotor-side converter. At the rated operating condition of the system, the rotor- and the stator-side converters as well as the machine operate at their respective rated currents. So that the rotor-side converter is to be used for harmonic current injection, not only the current rating of the converter but also the current rating of the machine must be increased. For Further Details-A Vinay,Managing director Ph: 9030333433,0877-2261612 So, in this project three topologies of a stand-alone doubly fed induction generator (DFIG) which can handle nonlinear unbalanced load. The zero-sequence load voltage is actively controlled through the stator-side converter with the load neutral connected to the midpoint of the dc-link capacitor. The harmonic/imbalance component of the load current in each case is supplied by the stator-side converter. So that choosing the Δ/Y transformer with neutral connection supplies the load. The harmonic current circulating in the delta winding still distorts the load phase voltage beyond the acceptable limit. For Further Details-A Vinay,Managing director Ph: 9030333433,0877-2261612 The entire proposed system will be tested using MATLAB/SIMULINK and the simulation results demonstrate the attractive performance characteristics of the proposed harmonics compensation with zero-sequence load voltage control in a speed-sensor less DFIGBased stand alone variable speed control frequency generating system. For Further Details-A Vinay,Managing director Ph: 9030333433,0877-2261612