The voltage sourced-inverter (VSI) interfaced photovoltaic (PV) system with classic controller supplies the true power demand of the loads coupled at the Point of Interconnection (PoI). Thus, PV systems assets practically remain dormant at nighttime which reduces the device utilization factor of the VSI. Therefore, to subjugate the underutilization of VSI, this paper presents a synchronously rotating dq-frame and adaptive phase-locked loop (PLL) structure. The proposed system serves the following distinctive functions: (i) True power management function which is fundamentally responsible for sharing power requirement of the nonlinear load based on the renewable power accessibility at DC-link; and (ii) Active harmonic filtering (AHF) which is responsible for deliberately producing controlled harmonics in the output current and, in turn confronting the power quality (PQ) challenges. The envisaged control structure can be purposefully employed to transfer the power into the electric grid while providing grid current harmonic mitigation and balancing, reactive power elimination, and unity power factor (UPF) operation. In this respect, it is an inexpensive substitute to existing commercial shunt AHF meant for this job. The most distinctive feature of the presented structure is its computational effectiveness and easy implementation. Furthermore, insights are provided on the operating principle of a DC-link voltage control loop and power balance operation. The proposed PV system employs an incremental conductance (InC)-based technique to ensure optimal power evacuation from the PV arrays. Finally, the MATLAB/Simulink simulation and dSPACE-1104 based experimental results confirm the potential merits of the proposed structure to restrict the grid current distortions within the 5% and thereby complying with THD limit specified in the IEEE-519.

带有经典控制器的电压源-逆变器（VSI）接口光伏（PV）系统提供了在互连点（PoI）耦合的负载的真实功率需求。因此，光伏系统资产实际上在夜间处于休眠状态，这降低了VSI的设备利用率。因此，为了克服VSI的未充分利用，本文提出了一种同步旋转的dq-帧和自适应锁相环（PLL）结构。拟议的系统具有以下独特功能：（i）真正的电源管理功能，该功能从根本上负责基于DC-link上的可再生电源可访问性来共享非线性负载的电源需求；（ii）有源谐波滤波（AHF），它负责在输出电流中故意产生受控的谐波，进而面对电能质量（PQ）的挑战。可以有目的地采用设想的控制结构将电力传输到电网中，同时提供电网电流谐波缓解和平衡，无功消除和单位功率因数（UPF）操作。在这方面，它是用于该工作的现有商业并联AHF的廉价替代品。所呈现结构的最鲜明特征是其计算效率和易于实施。此外，还提供了有关直流母线电压控制环路和功率平衡操作的工作原理的见解。拟议的光伏系统采用基于增量电导（InC）的技术，以确保从光伏阵列中抽出最佳功率。最后，基于MATLAB / Simulink仿真和dSPACE-1104的实验结果证实了所提出结构的潜在优点，可以将电网电流畸变限制在5％之内，从而符合IEEE-519中规定的THD限制。拟议的光伏系统采用基于增量电导（InC）的技术，以确保从光伏阵列中抽出最佳功率。最后，基于MATLAB / Simulink仿真和dSPACE-1104的实验结果证实了所提出结构的潜在优点，可以将电网电流畸变限制在5％之内，从而符合IEEE-519中规定的THD限制。拟议的光伏系统采用基于增量电导（InC）的技术，以确保从光伏阵列中抽出最佳功率。最后，基于MATLAB / Simulink仿真和dSPACE-1104的实验结果证实了所提出结构的潜在优点，可以将电网电流畸变限制在5％之内，从而符合IEEE-519中规定的THD限制。