Improve Protection Concept of Transmission Line Based on Power Lines Carrier for microgrid

The modern energy supply system and the future ones include different intelligent devices. It also integrates renewable energy sources, the energy storage system, energy control, hybrid networks, and smart grids, as well as the broad application of information and communication technologies. The most important objective in the smart grid application is to improve the reliability of the network. Recent research has shown that the smart grid can improve the reliability of electrical systems, improve efficiency, and improve fault detection, and network repair. The proposal will reduce the duration of the interruption number of customers affected by the interruptions. Besides, Smart grid technology reduces energy loss and improves system efficiency. We conclude from this, the protection of the transmission line is necessary to improve the stability of the smart network. The protection of the faults becomes very difficult and the increasing delays in the multi-terminal planning system. The proposal offers a different solution to protect the transmission line and discusses the design of the protection system for the microgrid transmission line. This method is better than the distance protection because differential protection requires fewer input data and reduces the computation time. The most significant advantage of power line carrier communication (PLCC) technique from an economic standpoint, reduces a lot of time & money; also, it is reliable, easy to install and convenient.