This paper presents a new control scheme for solar photo-voltaic (PV) integrated universal active power filter (PV-UAPF). Here, the instantaneous power balance theory (IPBT) is proposed to extract the reference signals for shunt active filter (ShAPF) and series active power filters (SeAPF). Thereby, ShAPF will act as a pure sinusoidal voltage source and SeAPF will act as a pure sinusoidal current source. In the IPBT control scheme, the frequency locked loop (FLL) based modified reduced order generalized integrator (MROGI) is proposed to extract positive and negative sequence components (PNSC) and phase angle during adverse grid conditions. Also, the PV integration at the DC link will reduce demand on the supply system thereby reduces the burden on the utility grid. Hence, the proposed system combines both the benefits of clean energy generation along with power quality improvement. To validate the performance of the proposed system, simulation is developed in MATLAB, and results are verified. Also, the system performance is then verified in the hardware setup under various disturbances such as voltage sag/swell, load distortion, and change in PV power.

本文提出了一种新的太阳能光伏（PV）集成通用有源电力滤波器（PV-UAPF）的控制方案。这里，提出了瞬时功率平衡理论（IPBT）来提取并联有源滤波器（ShAPF）和串联有源功率滤波器（SeAPF）的参考信号。因此，ShAPF将充当纯正弦电压源，而SeAPF将充当纯正弦电流源。在IPBT控制方案中，提出了基于锁频环（FLL）的改进降阶广义积分器（MROGI），以提取不利电网条件下的正序和负序分量（PNSC）和相角。同样，直流链路上的光伏集成将减少对供电系统的需求，从而减轻公用电网的负担。因此，拟议的系统既结合了清洁能源发电的优势，又结合了电能质量的提高。为了验证所提出系统的性能，在MATLAB中进行了仿真，并验证了结果。此外，然后在各种干扰（例如电压骤降/骤升，负载失真和PV功率变化）下的硬件设置中验证系统性能。