摘要
将具有高功率密度的超级电容器和高能量密度的蓄电池组成混合储能系统,可以提高电动汽车能量系统的性能。建立了混合储能系统的模型,采用模糊控制的方法管理能量,针对正常行驶和回馈制动两种情况下储能系统能量的分配情况,对电动汽车混合储能系统进行了研究和仿真实验。实验结果表明,运用模糊控制可以合理分配系统的能量,超级电容的引入大大提高了电动汽车的功率输出能力,优化了蓄电池的放电过程,并且可以迅速吸收回馈制动的能量,具有较好的技术性能和经济实用性。
The hybrid energy storage system, which was composed of high-power density ultracapacitors and high-energy density batteries, could improve the performance of the energy storage system of electric vehicles. A model of hybrid energy storage system controlled by a fuzzy-logic controller was built. The simulation results show that the energy can be reasonably distributed by the fuzzy-logic controller and the use of ultracapacitors greatly improves the power output capacity of electric vehicles while optimizing the discharge current of the battery. The system could also absorb the regenerative braking energy quickly. It turns out that the system has good technical performance and economic practicality.
出处
《电源技术》
CAS
CSCD
北大核心
2015年第11期2468-2470,2502,共4页
Chinese Journal of Power Sources
关键词
电动汽车
超级电容
蓄电池
模糊控制
electric vehicles
ultracapacitor
battery
fuzzy-logic control
