This is an innovative approach to enhance energy harvested from flywheel energy storage systems (FES). By utilizing a dual armature winding permanent magnet machine and a novel power circuit configuration featuring a buck converter for maintaining constant DC bus voltage, significant improvements of 15-20% in harvested energy have been achieved compared to existing systems. The proposed system addresses limitations of traditional boost converters, offering better efficiency and stability. Through simulation and experimental validation, including MATLAB simulations and a prototype system, the effectiveness of the design is demonstrated. This advancement promises enhanced efficiency and performance in various applications such as transportation and battery-less UPS systems.
Figure (1) Proposed scheme for voltage boosting in generation mode; (2) Experimental test set up of the system
The challenge is to increase quantum of energy harvested and its efficiency in flywheel energy storage systems (FES) for a given top speed. Existing systems face limitations with traditional boost converters with reduced efficiency lower speeds, hindering optimal energy extraction for a given top speed.
- Dual armature winding machine: This innovation enhances quantum of energy harvested and its energy harvesting efficiency through independent control and higher voltage output during generation mode, ensuring optimal power extraction from renewable sources.
- Buck converter for DC bus voltage regulation: This technology reduces input current, improving overall system efficiency and reliability by stabilizing the DC bus voltage effectively.
- Detailed study of generator winding configurations: It optimizes performance by analyzing the impact of winding configurations on system stability and output, ensuring maximum power generation under diverse operating conditions.
- Integration of new power circuit configuration: It overcomes limitations of traditional boost converters, ensuring consistent DC bus voltage maintenance for reliable system operation.
- Simulation using MATLAB software: It validates theoretical models and predicts system behavior under varying conditions accurately, facilitating informed design decisions and performance optimization.
- Prototype system with 1.0kW power rating: It demonstrates practical implementation and scalability of the proposed scheme in real-world applications, showcasing its effectiveness in generating renewable energy efficiently.
A detailed study of the effect of generator winding configurations and the control strategies used in the proposed scheme are carried out. The proposed scheme is simulated using MATLAB software; prototype system with the power rating of 1.0kW/200V was built and tested. The simulation and experimental results are in very good agreement in the proof of concept.
The proof of concept and demonstration and/or validation in lab environment has been done.
4
This improved energy harvesting technology contributes to sustainable development goals, promoting cleaner and more efficient energy production. Optimized power generation methods reduce environmental footprint, fostering eco-friendly practices and mitigating climate change impacts.
The enhanced voltage regulation systems ensure stable and reliable power supply, benefiting communities with consistent energy access. The advanced simulation techniques facilitate informed decision-making in energy infrastructure development, promoting cost-effective and sustainable solutions. The integration of renewable energy systems promotes energy independence and resilience, enhancing societal preparedness against energy crises.
Uninterruptible Power Supplies (UPS), grid stabilization, power electronics, pulse power sources, renewable energy systems, battery-less energy storage, transportation, electric vehicles, regenerative braking in automotive, aerospace
1805/MUM/2015
448160