Abstract
Microgrids are becoming a popular way to cater the sustaining power needs of urban community loads as buildings of financial districts, universities, industrial zones, gated communities etc. Effective utilization of available energy resources and smart management of operating loads will increase level of supply reliability and reduces the utility grid dependency. With this intent, this paper proposes an original philosophy of designing Smart Energy Management and Control (SEMC) algorithm to transform microgrids as smarter grids. Building microgrid system is modeled using MATLAB/Simulink and is interfaced with real time controller via data acquisition system to form Hardware In the Loop (HIL) setup. This real time controller is realized through Programmable Logic Controller (PLC) by using SEMC algorithm. SEMC manages the available energy sources as well as operating loads based on their availability and priority to supply the total instantaneous load on the microgrid. The proposed algorithm can also facilitate utility grid interaction for import and export of power in deficit and excess available power conditions respectively. From the implementation of the proposed algorithm, the obtained results show that the proposed system ensures reliable and stable supply to building loads.
Highlights
The study on microgrids is fundamentally focused to meet the electrical energy needs of the people live in remote areas to where the enhancement of the utility grid is uneconomical [1]
In view of all the aforesaid issues, this paper proposes a novel design of energy management and control unit for operating the available energy sources and loads effectively to leverage microgrids as smarter girds
As voltage levels of Programmable Logic Controller (PLC) (24V) and Peripheral Connect Interface (PCI) (5V) are different, to match these, normally open (NO) and normally closed (NC) relays are used for digital signal communication between Data Acquisition (DAQ) and PLC
Summary
The study on microgrids is fundamentally focused to meet the electrical energy needs of the people live in remote areas to where the enhancement of the utility grid is uneconomical [1]. Apart from these, voltage/frequency control strategy was proposed in [23], which helps the microgrid to be an active network in the overall utility grid operations. This method helps in penetration of higher concentration of renewable energy and facilitates lower cost management of available energy sources. In view of all the aforesaid issues, this paper proposes a novel design of energy management and control unit for operating the available energy sources and loads effectively to leverage microgrids as smarter girds. For the implementation of the proposed method, HIL based novel laboratory setup is developed to manage the energy sources and loads in an urban community microgrid
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