光伏并网系统最大功率追踪控制  

MPPT control of grid-connected PV system

作　　者：车永亮[1] 孟涛[2] 赵金阳[3] 

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012 [2]国网吉林省电力有限公司电力科学研究院,长春130021 [3]辽宁省电力有限公司抚顺供电公司,辽宁抚顺113008

出　　处：《黑龙江电力》2016年第3期270-274,共5页Heilongjiang Electric Power

摘　　要：为保证光伏阵列输出功率稳定运行在最优状态,降低光伏大规模并网运行成本,建立了光伏阵列数学模型,探讨了光伏阵列输出特性,并提出一种改进电压扰动法,使光伏阵列稳定运行于最优点。采用光伏并网发电协调控制策略,即采用功率外环和电流内环双环协调控制,实现了光伏阵列向电网最优输出。PSCAD/EMTDC电力仿真软件的仿真结果也验证了该电压扰动法和光伏并网发电协调控制策略的有效性。To ensure PV running at the optimal state,and to reduce the operation cost of large- scale PV connected to grid,this paper established the model of PV array,discussed the characteristics of PV array,and proposed the improved voltage perturbation method,which can keep PV running stably at the optimal state. It is a method that at the same time adopts the coordinate control strategy,which uses power outer loop and current inner control,to realize the PV array optimal power output to grid. In the PSCAD,the simulation results show that the control strategy of grid- connected PV is effective.

关 键 词：光伏 建模 并网 最大功率追踪 

分 类 号：TM615.2[电气工程—电力系统及自动化]