文献类型：期刊文献

英文题名：Research on Photovoltaic Power System DC/DC Controller

作者：Liu, Junfeng[1];Pian, Chunyuan[2]

第一作者：刘俊峰

通讯作者：Pian, CY[1]

机构：[1]Xinxiang Univ, Inst New Energy Mat & Power Syst, Xinxiang 453003, Henan, Peoples R China;[2]Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Henan, Peoples R China

第一机构：新乡学院

通讯机构：[1]corresponding author), Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Henan, Peoples R China.|[110717]新乡学院物理与电子工程学院;[11071]新乡学院;

年份：2018

卷号：13

期号：9

起止页码：1340-1348

外文期刊名：JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000446087200011)】；

基金：This work was supported by Scientific and technological research project of Henan provincial science and Technology Department, 2018 (No: 182102210493); Key scientific research projects of higher education in Henan Education Department, 2018 (No: 18B413007); Xinxiang science and technology innovation and development project, 2016 (No: CXGG16033); The ninth group of key disciplines in Henan province (No: 2018119).

语种：英文

外文关键词：Solar Photovoltaic System; DC/DC Controller; Charge and Discharge Management; Maximum Power Point Tracking

摘要：The focus of independent solar power system research is the DC/DC controller. It mainly includes photovoltaic array maximum power point tracking (MPPT) and battery charge and discharge management. First, a global variable step-size conductance increment method with a stable operating point judgment is proposed to implement the photovoltaic array MPPT. Under the circumstances of the fixed external environment and the change of the environment, a simulation comparison is made with the traditional conductance increment method. The results show that the global variable step-by-step conductance increment method quickly and stably outputs the maximum power under various external environmental changes. Then, a dual half-bridge bi-directional DC/DC converter is used to charge the battery in four stages. A charge and discharge simulation model of the battery is established. The discharge simulation waveform of the battery in the Boost mode is given. The simulation results verify the correctness and feasibility of the theory.