SOC Battery Energy Storage Systems Management and Power Quality Enhancement in Mexican Microgrids Evaluated by Wind Resources: A Case Study

In this paper, a microgrid based on a battery energy storage system (BESS) and a wind energy conversion system (WECS) is presented; its potential is evaluated by wind fluctuations from San Fernando, Tamaulipas, Mexico, at coordinates 25.02° N and 98.09° W. BESS-WECS is integrated with a maximum power flow of 10 kW and a DC-link of 660 V into the distribution grid. Energy management is proposed through the SOC batteries limits, buck, boost, and voltage source converters. The power electronics converters are controlled through a closed loop with a Proportional + Integrator (PI) compensator providing a robustness and stability response in real time. Validation results are performed by a complete mathematical model, Matlab-Simulink, and Software-In-the-Loop methodology through an associated platform of Opal-RT, the RT-LAB Technologies. Power quality enhancement is proven by the wind variability effect mitigation and maintaining the main parameters, such as THD, power factor, and efficiency close to the reference values at the Point of Common Coupling (PCC).