Effect Simulation Analysis Of Flywheel Energy Storage Based On Vehicle Running Condition

With the continuous development of automobile industry and the increasing enhancement of national economy level, car ownership has rapidly grown; the popularity of cars brings convenience to our daily travel, but it also brings energy tension and environmental pollution problems. In the order to comprehensive, coordinated and sustainable development, seeking new energy technology instead of fuel for car powered energy has gradually become a new development direction to the international auto industry. As a kind of clean, efficient and easy to control type of energy storage technology, the flywheel energy storage technology is gradually into people’s horizons. Car running condition has a direct impact to automobile fuel consumption. Reducing fuel consumption can effectively control vehicle pollutant emissions, when car brakes in different driving condition, a lot of energy will be wasted, and this will lead to lower energy efficiency. The flywheel energy storage technology is applied in automobile industry, recycles utilization of the energy dissipation, and greatly improves the energy comprehensive utilization, effectively reduces the energy consumption of oil and the pressure of environmental pollution. This article is based on the flywheel energy storage effect of vehicle running simulation analysis. The main research content is as follows:(1) The status of flywheel energy storage technology application is carried on the comprehensive analysis. The flywheel rotor as a key factor influences the flywheel energy storage system, its inertia and the highest speed directly affect the energy storage; By analyzing of the flywheel rotor shape influence factor, the geometric shape is determined; According to force analysis, the rotor material is chosen; By using Matlab software to analysis the influence of inertia, structure size is analyzed. Finally, through the check of rated speed and intensity, the flywheel rotor design is completed.(2) Base on the design requirements of maximizing the braking energy recovery in the process of vehicle braking (braking original speed of 25 km/h), and the principle of high efficiency, stable operation, the overall scheme of the flywheel energy storage system is determined. According to the overall design, this paper completes the electric motor, generator, reducer and other main components of flywheel energy storage system selection. The flywheel energy storage test bench is set, and system control circuit is designed.(3) Make the flywheel energy storage system operate in constant power control mode. With the motor under different frequency of power supply, complete flywheel energy storage simulation test. Flywheel rotor speed variation is analyzed in the process of energy storage process and the release process, and the power generator voltage are analyzed in record, the higher of flywheel rotor speed is, the longer of the release process period is, the greater of the power voltage is. The flywheel rotor speed control in a certain range to make sure its security.(4) With the help of ADAMS dynamics simulation software, the flywheel energy storage system model is established. The simulation analysis of flywheel energy storage system is based on typical vehicle running. Under an ECE working condition cycle, the flywheel energy storage system can recycle braking energy 620kJ, Under an EUDC working condition cycle, the flywheel energy storage system can recycle braking energy 2300kJ.To a certain extent, and it increases the car mileage and reduces the fuel consumption.