There are two distinct methods to eliminate the leakage current in the solar PV array system: (i) obstruct the leakage current, (ii) reduce the variation/constant common-mode voltage. The additional diodes/switches are incorporated in the system to obstruct the leakage current by disconnecting the PV array from the grid side network.
Therefore, the leakage current is attained within permissible limits as per the revised VDE-00126-01 standard as evinced in Fig. 6a. Fig. 6b and Figs. 7a and b show the response of SECS at the variation of solar irradiation from 1000 to 800 W/m 2.
The DC bus voltage is regulated in accordance with the reference inverter voltage. The solar PV array current is lowered as per variation in solar irradiation. The changeovers in the grid current and VSC current are easily noticeable in Fig. 15b. Fig. 15b evinces the waveforms of vsab, ILeak, isa, and iLa.
From the analysis it is found that the generation cost can be reduced only if the subsidies and green energy billing in form of EIMC and SIMC can be levied. The levelised cost of energy for the conventional ground mounted solar PV plant considered is 0.03 $/kWh while for agrivoltaic plant without subsidies and incentives the LCOE is 0.052 $/kWh.
The externalities caused by land coverage of solar parks are divided over environmental and social along with changes in micro climate. Research in agrivoltaics has considered the prospects of different crops vis-à-vis the soil conditions.
The obtained results indicate that leakage current is not only related with electrical layout of the PV array but also the resistance of EVA and glass. Need Help?
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