研究目的
Examining the mechanisms by which currents may be induced within PV installations with the objective of minimizing the magnitudes of induced currents within a PV installation.
研究成果
The study concluded that currents are more likely to be induced due to large loop areas in the inter-module wiring than in the PV modules themselves. The conductive frame of the PV module was shown to reduce the magnitudes of induced currents. Recommendations include minimizing loop areas in inter-module wiring and avoiding coiling of excess cabling.
研究不足
The discrepancies between simulation and practical results highlight the need for a broadband electromagnetic model of a PV module. The study also notes the trend towards frameless PV modules, whose susceptibility to EMI should be further investigated.
1：Experimental Design and Method Selection:
Computational electromagnetic simulations and real-world testing in a high-voltage laboratory were conducted.
2：Sample Selection and Data Sources:
A BYD 310P6C-36 PV module was used for both simulations and practical tests.
3：List of Experimental Equipment and Materials:
Altair FEKO for simulations, Phillips model 14030 Marx generator for practical tests, and a wideband current measuring toroid connected to a Yokogawa digital storage oscilloscope.
4：Experimental Procedures and Operational Workflow:
Simulations were conducted with the PV module placed at various distances from a simulated lightning stroke. Practical tests involved inducing currents in the PV module and measuring the induced currents.
5：Data Analysis Methods:
Frequency domain results were computed for discrete frequency intervals, and time-domain signals were analyzed.
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