Design and simulation of PI control for paralleled positive output elementary Luo converters for distributed power supplies

R. Kayalvizhi, S. P. Natarajan, D. Sivakumar, K. Elangovan
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引用次数: 3

Abstract

The switch mode DC-DC converters are used to convert the unregulated DC input voltage into a controlled DC output voltage at a desired level. They are mostly used in computer power supplies, servo motor drives, medical equipments etc. Luo converter is a recently developed DC-DC converter. Positive output Luo converter performs the voltage conversion from positive source voltage to positive load voltage. Parallel connection of Luo converters are used when available converters are of lower current rating but load requires higher current. Because of dissimilarities in devices and components used in converters, current drawn or supplied by each converter is unequal which will lead to converter failure or malfunction. Therefore the main control issues in parallel connected converters are to ensure proper current sharing and equalize the output currents among converters and also to ensure regulated output voltage under load and supply disturbances. The objectives of this work are to design and develop PI control for paralleled positive output Luo converters using MATLAB software. The simulation results are presented. They validate the PI control developed
分布式电源并联正输出初等罗变换器PI控制的设计与仿真
开关模式DC-DC变换器用于将未调节的直流输入电压转换为所需水平的受控直流输出电压。主要用于计算机电源、伺服电机驱动、医疗设备等。罗变换器是近年来发展起来的一种DC-DC变换器。正输出罗变换器完成源电压正向负载电压正的电压转换。当可用变流器额定电流较低,而负载需要较大电流时,采用罗变流器并联。由于变换器所使用的器件和元件的不同,每个变换器所吸取或提供的电流是不相等的,这将导致变换器的故障或故障。因此,并联变流器的主要控制问题是确保变流器之间的电流共享和输出电流均衡,并确保在负载和电源干扰下输出电压稳定。本工作的目的是利用MATLAB软件设计和开发并联正输出罗变换器的PI控制。给出了仿真结果。他们验证了PI控制开发
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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