光伏发电技术在船舶上得到广泛应用。但是基于单一Boost电路的光伏系统存在电流纹波较大且输出功率稳定性差的问题，为解决这一问题，本文在详细分析了一种无源无损软开关的工作模态和两相交错并联技术的基础上，将其应用于光伏最大功率点跟踪系统。在Matlab/Simulink环境下，搭建了光伏系统的模型，分别对常规Boost电路以及改进型Boost电路进行仿真，通过仿真结果可以得出改进型Boost电路比传统单一Boost电路可以减小电路中的电流纹波以及提高光伏系统输出功率稳定性。
Photovoltaic power generation technology has been widely used in ships. But the traditional single Boost circuit has large current ripple and poor output power stability. In this paper, to solve this problem, the operating mode of passive and non-destructive soft-switching and two-phase interleaving technology is analyzed. Then the new circuit is applied to PV maximum power point tracking system. The simulation of PV is completed by MATLAB/SIMULINK. The conventional Boost circuit and improved Boost circuit simulation is completed. The simulation results show that the improved Boost circuit can reduce the current ripple in the circuit and improve the stability of the output power of the photovoltaic system compared with the traditional single Boost circuit.
2018,40(8): 99-103 收稿日期：2017-01-15
DOI：10.3404/j.issn.1672-7649.2018.08.019
分类号：TM914
作者简介：庞科旺(1963-),男,副教授,研究方向为大功率电力电子装置及电机拖动
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