基于快速MPPT的压电能量收集电路设计OA
Design of piezoelectric energy harvesting circuit based on fast MPPT
为了契合绿色可再生能源发展理念,自供电环境能量收集系统已逐渐成为替代传统电池的高效解决方案,可克服传统电池在重量、尺寸及循环寿命等方面的局限性.针对压电源的时变特性,设计了一种基于其特性的快速最大功率点跟踪(Maximum Power Point Tracking,MPPT)电路架构.对压电源的阻抗特性进行分析,采用了基于快速开关电容采样的开路电压采样MPPT算法,有效实现跟踪精度和动态响应速度的协同优化.最后,基于 0.18 μm BCD工艺对电路进行设计,仿真结果表明:MPPT的跟踪时间为 0.36 ms,最大追踪精度可达 99.4％.
In order to align with the development concept of green renewable energy,self-powered ambient energy harvesting systems have gradually emerged as an efficient alternative to traditional batteries,overcoming limitations such as weight,size,and cycle life.This paper designed a fast maximum power point tracking(MPPT)circuit architecture based on the time-varying characteristics of piezoelectric sources,and analyzed the impedance characteristics of piezoelectric sources and employed an MPPT algorithm based on open-circuit-voltage sampling via fast switched-capacitor sampling,effectively achieving co-optimization of tracking accuracy and dynamic response speed.Finally,the circuit was designed using a 0.18 μm BCD process.Simulation results show that the MPPT tracking time is 0.36 ms,with a maximum tracking accuracy of up to 99.4％.
刘敏宇;周玉斐;袁润之
南京航空航天大学 电子信息工程学院,江苏 南京 210016南京航空航天大学 电子信息工程学院,江苏 南京 210016南京航空航天大学 电子信息工程学院,江苏 南京 210016
信息技术与安全科学
最大功率点跟踪低压整流桥开关电容采样压电能量
maximum power point trackinglow-voltage rectifierswitched-capacitor samplingpiezoelectric energy
《电子元件与材料》 2026 (2)
165-172,8
江苏省研究生科研与实践创新计划项目(SJCX240120)
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