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Controller Coordination Strategy for DC Microgrid Using Distributed Pbkp_redictive Control Improving Voltage Stability

Abstract:

The paper presents the design and control strategy of an isolated DC microgrid, which is based on classical control techniques, pbkp_redictive control and iterative algorithms. The design control parameters are maximum overshoot, settling time and voltage ripple. The strategy is designed to operate in two different modes, end-users minimum and maximum demand scenarios, and this is achieved through the incorporation of network dynamic loads. The control methodology developed allows to obtain a fast response of the design set points, and an efficient control for disturbance rejection. The simulation results obtained satisfy the proposed design guidelines by obtaining a maximum overshoot of 4.8%, settling time of 0.012 seconds and a voltage ripple of 0.1 percentage. The implemented system simulation was developed in Matlab-Simulink software.