一种用于光伏电站的半桥式Buck-boost变换器  

A half Bridge Buck-boost Converter for Photo Voltaic Power System and Its Control Scheme

作　　者：芦荣 刘光远 LU Rong;LIU Guang-yuan(Department of electrical and Mechanical Engineering,Gansu Vocational&Technical College of Nonferrous Metallurgy,Jinchang 737100,China)

机构地区：[1]甘肃有色冶金职业技术学院机电工程系,甘肃金昌737100

出　　处：《山东工业技术》2022年第5期49-54,共6页Journal of Shandong Industrial Technology

摘　　要：独立光伏发电系统包括三种变换器:光伏面板向蓄电池充电的buck变换器,蓄电池向负载供电的Boost变换器,和负载电压调节器。为了使三种变换器协调工作,必须要有统一的控制策略。一个独立的光伏发电系统包括光伏阵列,电池组,还有半桥型双向Buck-boost变换器。不管日照情况怎么样,系统要有向负载连续供电的能力。提出了一种符合实际的变换器,并用PSIM仿真软件进行了仿真。展示了电路可以工作在Buck模式和Boost模式,系统可以实现在Buck模式和Boost模式之间根据电源电压进行切换。The photo voltaic(PV) power system has three converters: the Buck converter for charging from PV panel to battery,the Boost converter for discharging from battery to load,and the regulator for the load voltage.In order to let the three converters work coordinately,it must have a coordinating control scheme.A standalone PV system consists of PV array,battery,and a half bridge Buck-boost converter.Despite the sunlight,the system must have the ability to provide sustained power to the load.A suitable converter is designed,and it is simulated by the PSIM software.The simulation provide the Buck mode and the Boost mode,and the system can change from Buck mode to Boost mode according to the power voltage.

关 键 词：DC-DC 升降压 光伏 电池组 

分 类 号：TU912[建筑科学—建筑理论]