摘要
在使用多输入变换器作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并利用交错双边沿脉宽调制方式时,可以实现光伏与电网的协调工作并克服了光电联合供电系统中的一主要问题,即在光伏电池与电网同时供电时,电网电流会通过光伏电池板使测得的光伏电池板电流比实际值大,导致光伏电池板的最大功率跟踪失败。针对此问题,提出了另外一种新的驱动方式——互锁,该方式不仅能解决该问题还能使系统电流脉动小。从理论上分析了互锁驱动方式的调制效果,并与交错双边沿调制的效果进行了比较,然后利用Matlab/Simulink建立互锁模型,仿真验证了互锁方法的有效性。
The hybrid power system based on multi-input converter can work under suitable mode with power management strategy which has been put forward and interleaved dual-edge modulation PWM. It also can solve a major problem that the track of maximum power fails when photovoltaic cells and the commercial power supply are load at the same time. Now a new drive method is put forward-inter-lock. This method can not only solve the problem, but also have low fluctuation of the system current. The paper theoretically analyzes the modulation effects of inter-lock drive, and compares it with dual-edge modulation PWM. Then Matlab/Simulink is used to establish inter-locking model and simulate It verifies the effectiveness of inter-lock driving method.
出处
《实验室研究与探索》
CAS
北大核心
2015年第5期52-54,247,共4页
Research and Exploration In Laboratory
基金
国家自然科学基金(61106107)
关键词
联合供电系统
多输入变换器
交错双沿调制
互锁
hybrid power system
multi-input converter
interleaved dual-edge modulation
inter-lock
