This paper proposes an energy management and control system for laboratory scale microgrid based on hybrid energy resources such as wind, solar and battery. Power converters and control algorithms have been used along with dedicated energy resources for the efficient operation of the microgrid. The control algorithms are developed to provide power compatibility and energy management between different resources in the microgrid. It provides stable operation of the control in all microgrid subsystems under various power generation and load conditions. The proposed microgrid, based on hybrid energy resources, operates in autonomous mode and has an open architecture platform for testing multiple different control configurations. Real-time control system has been used to operate and validate the hybrid resources in the microgrid experimentally. The proposed laboratory scale microgrid can be used as a benchmark for future research in smart grid applications.
- Wind energy
- Solar energy
- Hybrid system
- Energy management
Fig. 1. Components of the laboratory scale experimental microgrid
EXPECTED SIMULATION RESULTS:
Fig. 2. Wind turbine-generator speed
Fig. 3. PV module current
Fig. 4. DC-link voltage
Fig. 5. Battery current
Fig. 6. Power at different locations in the microgrid (variable wind power)
Fig. 7. Battery state of charge
Fig. 8. Load Voltage
Fig. 9. Power at different locations in the microgrid (variable wind power)
Fig. 10. Battery current
Fig. 11. Battery state of charge
Fig. 12. DC-bus voltage
Fig. 13. Load Voltage
A laboratory scale experimental microgrid of distributed renewable energy sources with battery storage and energy management and control system is developed in this paper. The experimental setup is flexible and allows testing difference power electronics interfaces and combinations. The control software is open source in order to implement different control strategies. This tool contributes to the enhancement of education and research the field of renewable energy and distributed energy systems.
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