The piezoelectric energy harvester (PEH) has shown important practical value in numerous fields including, but not limited to communication, transportation, and military industrialization. However, the efficiency of piezoelectric energy harvesting is greatly limited due to its narrow frequency bandwidth. To harvest the vibration energy from a wider frequency range, this paper proposes a variant power generator array that is designed by using an arc-shaped piezoelectric cantilever beam (APCB) array. Five APCBs with different radii are arrayed parallel to each other with the energy harvesting circuit being connected in continuum by a rectifier bridge. The mathematical model and values of the APCB are depicted in this paper so to elucidate its low stiffness characteristic. The finite element analysis of the APCB is similarly recorded and the simulation result indicated that the APCB have better output performance than the corresponding flat-plat piezoelectric cantilever beam (FPCB). In addition, output voltage of the APCB can be increased while increasing the resonance frequency by increasing the width. Finally, the result of finite element simulation shows that the piezoelectric energy harvester using five APCBs arrayed in parallel series can be 14 times more efficient than that of the PEH with single APCB.

压电能量收集器（PEH）在包括但不限于通信、交通和军事工业化在内的众多领域中显示出重要的实用价值。然而，压电能量收集的效率由于其窄的频率带宽而受到很大限制。为了从更宽的频率范围内收集振动能量，本文提出了一种变体发电机阵列，该阵列采用弧形压电悬臂梁（APCB）阵列设计。五个具有不同半径的 APCB 彼此平行排列，能量收集电路通过整流桥连续连接。本文描述了 APCB 的数学模型和数值，以阐明其低刚度特性。类似地记录了 APCB 的有限元分析，仿真结果表明 APCB 比相应的平板压电悬臂梁 (FPCB) 具有更好的输出性能。此外，通过增加宽度可以增加APCB的输出电压，同时增加谐振频率。最后，有限元仿真结果表明，使用五个并联串联排列的 APCB 的压电能量采集器可以比使用单个 APCB 的 PEH 效率提高 14 倍。