This paper proposes the design and experimentation of digital control of soft-switched interleaved boost converter using FPGA for Telecommunication System. The switching devices in the proposed converter are turned on...This paper proposes the design and experimentation of digital control of soft-switched interleaved boost converter using FPGA for Telecommunication System. The switching devices in the proposed converter are turned on and off with Zero Voltage Switching (ZVS) and Zero Current Switching (ZCS) respectively. The circuit is operated in Continuous Conduction Mode (CCM) with various load ranges having duty cycle of more than 50%. The proposed converter is studied by developing the simulation module in MATLAB/SIMULINK. A PI controller is designed and implemented in FPGA to obtain a regulated DC output for line and load variations. Simulation and experimentation results are verified with a prototype development of the proposed converter. The results indicate that the converter performance is enhanced with closed loop control.展开更多
DC-DC变换器作为光伏发电最大功率点跟踪(maximum power point tracking,MPPT)控制器的核心部分,其动力学特性对系统的性能产生影响。该文基于非线性动力学系统理论,建立了光伏发电最大功率点跟踪(maximum power point tracking,MPPT)...DC-DC变换器作为光伏发电最大功率点跟踪(maximum power point tracking,MPPT)控制器的核心部分,其动力学特性对系统的性能产生影响。该文基于非线性动力学系统理论,建立了光伏发电最大功率点跟踪(maximum power point tracking,MPPT)交错并联Boost变换器的离散迭代映射模型,在此基础上采用分岔图、时域波形图、相轨迹图方法,研究了其动力学特性,并与一般Boost变换器特性进行比较。理论与实验结果均表明,在相同电路参数的情况下,与一般Boost变换器相比,交错并联Boost变换器的稳定域更大,电感电流和电容电压的纹波小、变化幅度小,更适用于光伏发电MPPT。展开更多
文摘This paper proposes the design and experimentation of digital control of soft-switched interleaved boost converter using FPGA for Telecommunication System. The switching devices in the proposed converter are turned on and off with Zero Voltage Switching (ZVS) and Zero Current Switching (ZCS) respectively. The circuit is operated in Continuous Conduction Mode (CCM) with various load ranges having duty cycle of more than 50%. The proposed converter is studied by developing the simulation module in MATLAB/SIMULINK. A PI controller is designed and implemented in FPGA to obtain a regulated DC output for line and load variations. Simulation and experimentation results are verified with a prototype development of the proposed converter. The results indicate that the converter performance is enhanced with closed loop control.
文摘DC-DC变换器作为光伏发电最大功率点跟踪(maximum power point tracking,MPPT)控制器的核心部分,其动力学特性对系统的性能产生影响。该文基于非线性动力学系统理论,建立了光伏发电最大功率点跟踪(maximum power point tracking,MPPT)交错并联Boost变换器的离散迭代映射模型,在此基础上采用分岔图、时域波形图、相轨迹图方法,研究了其动力学特性,并与一般Boost变换器特性进行比较。理论与实验结果均表明,在相同电路参数的情况下,与一般Boost变换器相比,交错并联Boost变换器的稳定域更大,电感电流和电容电压的纹波小、变化幅度小,更适用于光伏发电MPPT。