| S.No | Title | Author | Description | Download | |
|---|---|---|---|---|---|
| 1 | Voltage Sag Compensation Using Synchronously Reference Frame Theory Based Dynamic Voltage Restorer | P.Pramada Kumari |
This paper showcases one of the custom power device which is used to recover the voltage sag mostly occur at distribution system is Dynamic Voltage Restorer. The method applied to control this device is based on Synchronously Reference Frame theory to generate switching pulses for three phase inverter with the help of hysteresis voltage controller to maintain voltage profile sinusoidal at linear load terminal against voltage sag. The simulation of DVR model is performed in MATLAB software. |
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| 2 | Image Background Detection And Enhancement Of Colour Image Using Morphological Contrast | 1.Srikanth Veesam, 2.N. Salma Sulthana |
In this paper, some morphological transformations are used to detect the background in images characterized by poor lighting. Lately, contrast image enhancement has been carried out by the application of two operators based on the Weber’s law notion. The first operator employs information from block analysis, while the second transformation utilizes the opening by reconstruction, which is employed to define the multibackground notion. The objective of contrast operators consists in normalizing the grey level of the input image with the purpose of avoiding abrupt changes in intensity among the different regions. Finally, the performance of the proposed operators is illustrated through the processing of images with different backgrounds, the majority of them with poor lighting conditions. |