Economic Dispatch of Renewable Energy and CHP-Based Multi -zone Microgrids Under Limitations of Electrical Network

In order to integrate renewable and non-renewable energy resources like combined heat and power (CHP) systems, microgrid seems to be a good idea. This paper has developed an optimization framework for economic dispatch of microgrids including CHP plants, boiler units, conventional power generators, photovoltaic units, wind turbines and battery storage system in a 10-bus test system. The main goal of proposed paper is to optimally dispatch the studied microgrid in the mentioned test system considering impacts of heat buffer tank and battery energy storage. It should be noted that the studied test system is composed of several zones in which microgrid system can be operated in connected/islanded mode. Optimal economic dispatch problem of microgrid is studied within a 24-h time horizon, and the obtained results are analyzed for comparison.