一种光伏发电DC-DC变换器  

Research and Development of a Photovoltaic DC - DC Converter

作　　者：李丹[1] 俞万能[1] 郑为民[1] 

机构地区：[1]集美大学轮机工程学院,福建厦门361021

出　　处：《集美大学学报（自然科学版）》2013年第4期278-284,共7页Journal of Jimei University：Natural Science

基　　金：福建省科技重点项目(2012D035和2013H0034);厦门市科技项目(3502Z20123023)

摘　　要：在光伏发电系统中为了控制蓄电池的充放电的稳定性,保护系统的安全性,设计了一种以非隔离型的Buck/Boost拓扑结构为主电路的DC-DC变换器、设计了电路的参数,提出了基于电压、电流双闭环的控制算法,采用微处理器TMS320F28335为控制核心,开发了控制系统.实验结果表明:该DC-DC变换器具有输入电压范围广、输出电压精度高以及良好的动态、稳态特性.The electrical energy from solar photovoltaic array is influenced by solar light intensity and en-vironmental factor and has strong randomness, instability and gap characteristics. A DC - DC converter hav-ing wide input voltage, output voltage and high precision was designed in this paper. A non-isolated Buck/ Boost topology was used as the main circuit of DC - DC converter, the parameters of the circuit were given and a control algorithm was proposed based on voltage, current double closed loop. The system took the high - speed high - performance micro processor TMS320F28335 as the control core to develop its control system. The experimental results showed that the DC - DC converter had a wide input voltage range, a high output voltage precision and the good dynamic and steady - state characteristics.

关 键 词：光伏阵列 DC-DC变换器 TMS320F28335 电压电流双闭环控制 

分 类 号：TM712[电气工程—电力系统及自动化]