结合光伏并网发电系统和有源电力滤波器,研究了一种既能够并网发电,又可以实现无功补偿、电网谐波电流滤除的新型系统。提出了适用于该系统的无差拍复合控制策略,并给出了该策略的原理和复合指令的计算方法。最后,搭建了仿真模型和实验平台,给出了该系统的具体实现方案。运行数据验证了系统结构和控制策略的有效性和合理性。 Combined with photovoltaic grid-connected power generation system and active power filter, a new type of system that can both grid-connected power generation, reactive compensation and grid harmonic current filtration is studied. A deadbeat compound control strategy suitable for the system is proposed. The principle of the strategy and the calculation method of compound instructions are given. Finally, a simulation model and experiment platform are set up, and the concrete realization scheme of the system is given. The operating data verify the validity and rationality of the system structure and control strategy.