摘要
在使用双输入Buck变换器做为主电路的光电联合供电系统中,采用现有的能量管理策略,可以实现光伏与电网协调工作。当两只开关管同时导通时,由于两只续流二极管均承受反偏电压而截止,因此电网电流势必会从太阳能电池板一侧流过。如果在此时测量太阳能电池板电流,将会对测量结果产生严重影响,而且可能直接导致系统无法正常工作。文中提出两种解决方案,即交错双沿调制和锁定方式,并对两种方式给出了理论分析,从理论上证明了两种方法的使用效果是一致的。最后,列出了采用交错双边沿调制基于Matlab/Simulink的仿真模型和结果,证明采用交错双边沿调制的驱动方式是可行的。
In the hybrid power system based on double-input buck converter and power management strategy which has been put forward,we can keep the system working under suitable mode.But when the two IGBT switches at the same time,due to the reverse bias voltage,the flywheel diode will cut off.The commercial power current must flow through the photovoltaic that will affect measurement of Photovoltaic current seriously.Interleaved dual-edge modulation and inter-lock can solve the problem,theoretical analysis will be listed to prove the consistency of the two method.The simulation results of interleaved dual-edge modulation based on Matlab/Simulink model have confirmed the effectiveness.
出处
《实验室研究与探索》
CAS
北大核心
2014年第10期32-35,共4页
Research and Exploration In Laboratory
基金
成都市科技项目(11GGYB945GX-070)
