Investigating Techno-Economic Benefits of Integrating a Microgrid in IEEE 14 Bus Test Power System Using Lagrangian Method

The infrastructure of electrical power supply system across the word is expanding to meet increasing energy demand. Distributed renewable energy based microgrid could be a prominent candidate for ensuring economic supply of electricity. Grid-wise locational marginal price and power losses can be minimized by integrating the microgrid having net metering system. An optimal power flow model of a benchmark IEEE 14-Bus power system is developed to explore the technoeconomic benefit of microgrid integration. System incremental cost in different buses of the system is investigated to place the microgrid in the existing power grid. Several plausible cases have been considered and operation cost is determined. The IEEE 14 Bus Test System is considered to integrate two different megawatt capacity microgrids. In the model, feed-in tariff and net metering system found beneficial option in the everincreasing price of conventional fuel.