Abstract
The results concerning the integration of a set of power management strategies and serial communications for the efficient coordination of the power converters composing an experimental DC microgrid is presented. The DC microgrid operates in grid connected mode by means of an interlinking converter. The overall control is carried out by means of a centralized microgrid controller implemented on a Texas Instruments TMS320F28335 DSP. The main objectives of the applied control strategies are to ensure the extract/inject power limits established by the grid operator as well as the renewable generation limits if it is required; to devise a realistic charging procedure of the energy storage batteries as a function of the microgrid status; to manage sudden changes of the available power from the photovoltaic energy sources, of the load power demand and of the power references established by the central controller; and to implement a load shedding functionality. The experimental results demonstrate that the proposed power management methodology allows the control of the power dispatch inside the DC microgrid properly.
Highlights
In the context of increasing demand for electric power, local energy production through the integration of microgrids (MGs) in the main grid is becoming an interesting research topic
It isby important that the highlight that the primary controllers of every converter are designed for satisfying demands of primary to controllers of every converter are designed for satisfying demands of the MG; maintaining the MG; maintaining the stability in the DC bus voltage, battery bank and PV arrays
The power converters and panel specifications are are shown in the Table 3
Summary
In the context of increasing demand for electric power, local energy production through the integration of microgrids (MGs) in the main grid is becoming an interesting research topic. No communications were implemented, which are necessary to optimize the power dispatch among the power converters and to restore the voltage deviations produced [14] As it was described above, several centralized management and control strategies have been developed for DC microgrids. The DC microgrid consists of: (a) an MGCC; (b) an ILC connected to the main grid which controls the DC bus voltage; (c) two DC/DC converters that operate as a current source interchanging their power with the DC bus; (d) four loads with their respective electronic switches; (e) an RS-485 serial communication system and (e) the grid operator. The main contribution of this paper is the integration of conventional control strategies of all the power converters in the microgrid by means of a centralized algorithm implemented in a MGCC, taking into account real time serial communications for sending/receiving the necessary data.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
