Mekri, F., Machmoum, M., Aït-Ahmed, N., Mazari, B.: A comparative study of voltage controllers for series active power filter. Torres, A.P., Roncero-Sánchez, P., Vázquez, J., López-Alcolea, F.J., Molina-Martínez, E.J.: A discrete-time control method for fast transient voltage-sag compensation in DVR. Torres, A.P., Roncero-Sánchez, P., Batlle, V.F.: A two degrees of freedom resonant control scheme for voltage-sag compensation in dynamic voltage restorers. Finally, the proposed control is compared with common control methods.
The proposed system is evaluated by simulation and experimentation under several steady-state and transient cases. The voltage compensation technique controls the DVR in real time to prevent steady-state and disturbance conditions at the load side. Moreover, contrary to other methods, the proposed technique avoids the use of phase-locked loop (PLL) and vector transformation. With the proposed method, either the reference load voltages can be generated, or the reference DVR voltages can be generated, depending on which voltages are controlled. This method detects the components in real time. In this study, the determination of voltage references for DVR based on a robust and simple detection method of positive and negative sequence components is analyzed. Such issues are usually contained using a dynamic voltage restorer (DVR). Common voltage issues exist, such as imbalance, harmonic distortion, sag, and swell. Some equipment has been perceived to be unequipped to sustain the surges, faults, and distortions in traditional distribution systems. The VSI has been implemented with the help of both Bipolar SPWM as well as Unipolar SPWM and the results were compared.The use of certain electrical equipment connected to conventional power systems has raised concerns regarding the quality of the power system. The detection of sags/swells is carried out with the help of dqo theory, whereas the control of the voltage source inverter is done with the help of SPWM. In this work, a step by step procedure is given to figure out the components that are required for the design and simulation of DVR. DVR is a series connected device used for compensating voltage sags and swells on the distribution side. Though power quality related problems like voltage sags/swells occur both on the transmission side as well as the distribution side, the terminology used for the compensation devices is different. This paper gives a systematic procedure of the design and simulation of Dynamic Voltage Restorer (DVR) using Sinusoidal Pulse Width Modulation (SPWM). Volume : IV, Issue : XI, November - 2015 Design and Simulation of Dynamic Voltage Restorer (DVR) Using Sinusoidal Pulse Width Modulation (SPWM).
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