Suppressing Method for Photovoltaic Power Station DC Component Injection
With the large-scale development and application of photovoltaic power.direct current(DC)injection in photovoltaic(PV)power generation system to public power grid is drawing more and more attention.A new method to suppress the DC injection in grid connected PV system is presented in this paper.With the combination of new detection circuit topology and power amplifying circuit topology,the goal of accurately detecting DC component can be achieved.The DC component is superimposed as the modulated feedback signal to the inverter sine wave,through the outer loop voltage control of inverter closed-loop control,the DC component of photovoltaic power generation system can be finally eliminated.The rationality and feasibility of the scheme has been confirmed by simulations and experiments.
Photovoltaic power generation Grid connected inverter DC injection Suppressing method Simulation
Li Shengqing Yang Jun Xu Tianjun Zhang Bin
Hunan University of Technology,Zhuzhou Hunan 412007,China
国际会议
长沙
英文
2764-2768
2014-05-31（万方平台首次上网日期，不代表论文的发表时间）