欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
逆变器侧电流反馈的具有稳定性强、单闭环控制、参数设计简单和系统成本较低的优点，但是其属于电网电流间接控制，造成并网功率因数较低，此外，电网电流中还包含由电网电压引起的低次谐波电流。为保留其优点并克服其缺点，提出一种适用于逆变器侧电流反馈LCL并网逆变器的完全电网电压前馈控制策略，该策略能完全消除电网电压对电网电流的影响，并且并网功率因数得到了大大的提升。仿真与实验结果表明，所提控制策略正确、有效。
英文摘要：
The LCL grid-connected inverter, which uses the inverter-side current as feedback parameter, has many advantages, such as stronger stability, single-current loop, easy design for control parameters and its low cost. However, the grid current is controlled indirectly, which causes the power factor at grid-side is less than 1. Moreover, the grid current contains a lot of low-order harmonic, which results from low-order harmonic in grid voltage. A full grid-voltage feed-forward was proposed to overcome its shortcomings and reserve its merits, which can cancels out the effect of grid voltage on grid current and＇ the power factor at grid-side is approximately equal to 1. The simulation and experimental results verify that the performance of proposed control strategy is excellent.
同期刊论文项目
同项目期刊论文
期刊信息
位置：