光伏并网发电与有源电力滤波的统一控制研究

论文分析了电能质量光伏并网系统的拓扑结构和工作原理。在此基础上对PQPV系统中谐波抑制和光伏并网最大功率跟踪之间的解耦控制进行了研究，并针对谐波治理过程中负载突变导致系统直流侧电压变化，进而对最大功率输出造成影响这一问题，在PQPV系统的直流侧电压控制环节中引入了输出电流前馈控制，解决了负载变化过程中谐波抑制环节对PQPV系统最大功率跟踪的影响。最后对所提出的前馈控制方法进行了实验研究并得出相应结论。

Study on The Control Strategy of The Solar Power Grid With Active Filtering Function

The power system topology and operating principle of the photovoltaic grid-connected system with power quality controlling were analyzed in this Paper. On this basis, the system on the PQPV harmonic suppression and photovoltaic grid-decoupling between the maximum power point tracking control was studied, and also the DC side voltage control system is introduced in part of the output current feedforward control loop to process of governance for the harmonic load DC-Side Voltage mutations cause the system to change, inclose the impact on the maximum power output of this issue in PQPV system. Solving the impact between in the load harmonic suppression part of the process of change in the maximum power point tracking system right. Finally, the proposed feedforward control method of the experimental results and give the appropriate conclusions.