锂电池低压逆变器前级升压设计  

Design of Boost in the Front Stage of Low Voltage Inverters for Lithium Battery

作　　者：裴梦新 周书民[1] 汪志成[1] 纪荣焕 陈经纬 PEI Mengxin;ZHOU Shumin;WANG Zhicheng;JI Ronghuan;CHEN Jingwei(School of Mechanical and Electronic Engineering,East China University of Technology,Nanchang 330013,China;Quanzhou Weidun Electric Co.,Ltd.,Quanzhou 362000,China)

机构地区：[1]东华理工大学机械与电子工程学院,江西南昌330013 [2]泉州维盾电气有限公司,福建泉州362000

出　　处：《仪表技术》2024年第2期42-46,共5页Instrumentation Technology

基　　金：江西省科技合作专项重点项目(20212BDH80008);江西省重点研发计划项目(20181BBE58006)。

摘　　要：目前国内在低压逆变器方面的研究与工程应用相对较少,设计一台输出220 V、50 Hz稳定正弦波的锂电池低压逆变器,需要克服前级低压到400 V升压过程中出现的电路纹波过大、电流过大以及器件散热等问题。在电压变换电路、升压主电路和控制电路上,通过优化电路拓扑结构和PCB布线,辅助电源的纹波降低了23.1 mV;结合元器件的选择和研究,提出一种适用于锂电池低压逆变器的前级升压方案,通过调节反馈电路,将3.2 V的电压稳定地升压至400 V,用于3.2 V低压逆变器实物中。该设计方法对其他低压逆变的研究和应用具有一定的借鉴意义。At present,there is relatively little research and engineering application in the field of low-voltage invert-ers in China.To design a lithium battery low-voltage inverter that outputs stable sine waves of 220 V and 50 Hz,it is necessary to overcome the problems of circuit ripple,current,and device heat dissipation that occur during the process of boosting from the previous low-voltage to 400 V.By optimizing the circuit topology and PCB wiring in the voltage conver-sion circuit,boost main circuit,and control circuit,the ripple of the auxiliary power supply is reduced by 23.1 mV.Based on the selection and research of components,a front-end boost scheme suitable for lithium-ion battery low-voltage inverters is proposed.By adjusting the feedback circuit,the voltage of 3.2 V is steadily boosted to 400 V,which is used in the actual 3.2 V low-voltage inverter.This design method has certain reference significance for the research and appli-cation of other low-voltage inverters.

关 键 词：升压电路 脉宽调制 整流滤波 逆变器 

分 类 号：TM464[电气工程—电器]