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DC bus voltage control of a Free-Piston Linear Generator

机译:自由活塞线性发电机的直流母线电压控制

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This paper presents a DC-bus voltage regulation strategy to rectify the fluctuated AC voltage into stable DC-bus voltage for the Free-Piston Linear Generator (FPLG) in stable operation state. Considering that the frequency and amplitude of the AC voltage change rapidly with the nonsinusoidal piston velocity, a three-phase PWM rectifier topology together with its controller are presented to stabilize the DC-bus voltage. The simulation is conducted with the overall coupled dynamic system in which the models of the internal combustion engine thermodynamics, linear electric machine and mechanical spring are all included. The simulation results show that the proposed method can stabilize the dc bus voltage around 400V and ensure stable operation of the FPLG.
机译:本文提出了一种直流母线电压调节策略,以将波动的交流电压整流为稳定运行状态下的自由活塞式线性发电机(FPLG)的稳定直流母线电压。考虑到交流电压的频率和幅度随非正弦波活塞速度的变化而迅速变化,提出了一种三相PWM整流器拓扑及其控制器来稳定直流母线电压。仿真是通过整体耦合动态系统进行的,其中包括内燃机热力学,线性电机和机械弹簧的模型。仿真结果表明,该方法可以将直流母线电压稳定在400V左右,并保证FPLG的稳定运行。

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