Abstract: In past few decades the more concentration is employed on the topic of synchronization of power grid. As the level of life style of human being is upgraded and hence the energy requirement is also increased. To achieve the require mean the grid network is not sufficient therefore it is necessarily to take power from the nearby grid. So, it is much more important to have synchronization between the grid. By proper technique the main parameters such as voltage and frequency can be kept constant. Hence it is required to have the comparison between the technique is required for the cost effectiveness, efficiency, accuracy and reliability. KEYWORDS: Synchronization, Grid Voltage, Frequency, Effectiveness, Efficiency, Accuracy, Reliability