摘要
针对锂电池在生产流程中需要进行充放电的特性,设计了锂电池能量并网回收系统。该系统能够以锂电池的低压直流电压为输入,完成直流升压及逆变并网的功能,将生产锂电池过程中放电的能量回馈到电网,实现节约能源的目的。文中详细叙述了系统中DC/DC变换器、三相并网逆变器以及控制方法的设计思路和过程。实验结果表明,按照文中方法设计的样机能够稳定地并网运行。
Based on the fact that lithium battery needs to be charged and discharged for several times during its production routine, a scheme of grid-connected lithium battery power recovery system is proposed, in which the 24V DC voltage of lithium batteries is taken as the input, and by means of DC voltage boosting by DC/DC step up converter and through three-phase grid-connected inverters, the discharge energy during the production of lithium batteries is fed back to power grid to conserve energy. In this paper the design idea and control strategy of DC/DC step up converter, three-phase grid-connected inverters are presented in detail. Test results show that the prototype model of the proposed system can operate stably.
出处
《电网技术》
EI
CSCD
北大核心
2009年第16期92-95,共4页
Power System Technology
基金
台达环境与教育基金会"电力电子科教发展计划"项目(DREK2008001)的资助
关键词
分布式发电
锂电池
并网系统
并网逆变器
移相全桥
distributed generation
lithium battery
grid-connected system
grid-connected inverter
phase shifted full-bridge
