摘要
建立了光伏电池仿真模型,得到光伏电池P-U特性曲线。在电导增量法基础上,提出了一种基于电导增量法的可变步长MPPT算法,通过引入阻抗和导纳2个控制变量对占空比调整步长加以控制。|dP/dU|越大,调整步长越大,系统响应速度越快;|dP/dU|越小,调整步长越小,系统稳态性能越好。构建最大功率点跟踪(Maximum Power Point Tracking,简称MPPT)仿真模型,以Boost升压电路作为负载,得出的仿真结果和实验结果验证了该算法的正确性。
Tile simulation model of photovoltaie cells was established and its P - U character curve was ob tained. Based on the incremental conductance method, a new variable step MPPT algorithm was put forward by introducing two control variables, impedance anti admittance, to control the duty cycle adjustment step. The larger I dP/dUI was, the large the adjust step size was, the faster the system responses. The smaller IdP/dUI was, the smaller he adjust step size was , the steadier the state performance of the system was. The maximum power point tracking（ short for MPPT） simulation model was constructed and Boost circuit was used as the load, accordingly obtained simulation and experimental results verify the correctness of the algorithm.
出处
《湖北理工学院学报》
2013年第4期20-23,共4页
Journal of Hubei Polytechnic University
基金
2012年湖北省中青年创新团队项目
黄石市重点实验室项目
湖北理工学院大学生科技创新项目(项目编号:12cx03)
关键词
仿真模型
电导增量法
可变步长
simulation model
incremental conductance method
variable step
