Authors: Prakash Kerur, Dr. R.L. Chakrasali
Authors: Solar energy is inexhaustible, available abundant in nature and free from pollution. The solar photovoltaic (PV) systems are a perfect solution for power requirement urban residential areas since the system is noiseless. The main problem with solar energy is its intermittency. However, sometimes during clear days the solar panels generate surplus power beyond the needs. At these times, the surplus power is exported into the main utility grid. With increase of renewable energy sources causes various problems of grid integration to export the surplus power. The concept of digital grid (DG) and bi-directional smart meters are the solution for these problems. The digital grid” where a wide-area synchronized power system is sub divided into smaller or medium sized power systems. Subdivided grids called “digital grid cells” are connected together asynchronously via “digital grid routers”. The DGR is a multi-terminal AC/DC/AC power conversion device. In order to construct a DG, bi-directional power flow and asynchronous interconnection of many distributed solar roof tops. If the solar PV panel produces surplus power, then it has to be supplied to the grid and the exported surplus power must be accounted. The smart energy meter has to account for imported power from the grid to consumer system and the exported power from the consumer system to grid. In this paper Digital grid router (DGR) and smart meter combination are discussed.
Keywords: Digital Grid Router (DGR), Smart meter, Bi-directional power flow, Renewable Energy Sources
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