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Derated Mode of Power Generation in PV system Using Modified Perturb and Observe MPPT Algorithm

Journal of Modern Power systems and Clean Energy 2021年第5期9卷 1183-1192页

作者： Vinit Kumar Mukesh Singh Thapar Institute of Engineering and Technology PatialaPunjabIndia

In a grid-integrated photovoltaic system(GIPVS),there exist issues such as surplus active power and inadequate performance of maximum power point tracking(MPPT).A surplus active power causes the overvoltage problem at the point of common coupling in low-or medium-voltage grid during the peak hours of power ***,the inadequate performance of the MPPT algorithm results in power loss due to high settling time during the sudden change of ***,to solve the surplus power problem,the curtailment of active power is suggested with improved MPPT algorithm under variable irradiance *** this paper,a derated power generation mode(DPGM)control strategy is presented for the curtailment of active ***,a drift-free(named as modified)perturb and observe(P&O)technique is also proposed to improve the performance of the MPPT ***,the DPGM control scheme with the intermediate boost converter shaves the surplus active power during the peak hours of power ***,the modified MPPT algorithm deals with the fluctuation of irradiance during non-peak ***,the proposed control scheme delivers in a more efficient system during the peak hours of power *** addition,it reduces the power loss and settling time during the change of irradiance for non-peak *** on the proposed control scheme,a 30 kW system has been simulated in MATLAB/Simulink using Simpower tools under different environmental conditions.

关键词： Derated power generation mode(DPGM) gridintegrated photovoltaic system intermediate boost converter modified perturb and observe voltage source inverter

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