Abstract
Flywheel energy storage and lead-acid battery have complementary advantages, the hybrid energy storage system composed of them can effectively inhibit the fluctuating power and improve the power quality of microgrid. In order to reasonably distribute the charging and discharging power of flywheel energy storage and battery, a power smoothing control scheme based on fuzzy control was proposed, and a power distribution controller was designed. Firstly, the control strategy of charge and discharge of battery and flywheel is designed. Low-pass filter are used to get the battery and flywheel energy storage power allocation reference; At the same time, in order to prevent overcharge discharge, according to the flywheel energy storage equation, bus capacitance energy storage change equation and voltage change equation, the relationship between the flywheel speed and bus voltage is derived, and based on this, the flywheel energy storage state optimization module based on bus voltage change is established. Then, the reference power of storage battery and flywheel is corrected in real time by fuzzy control, and the corrected power acts on the control of flywheel and battery converter respectively. Finally, the simulation results show that the method is feasible and effective, and improves the capacity and accuracy of the hybrid energy storage system.
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.
