Study on the Interaction Mechanism between Photovoltaic Power Generation and Power Quality

[摘要] In the microgrid, the voltage of the access point fluctuates due to the PV power plant connected to the grid, and there is a risk of voltage overrun. In this article, the photovoltaic power generation system access to the power grid and the starting point of the impact of the access point voltage deviation mechanism is analysed, obtaining the two major influencing factors including light intensity and ambient humidity. It also analyzes the effect of light and humidity fluctuation on the fluctuation of bus voltage and uses PSCAD to simulate the mechanism of generating harmonics in photovoltaic power generation system.

[发布机构] Yunnan Electric Power Research Institute, Kunming; 750217, China^1

[效力级别] 无线电电子学

[关键词] Access points;Ambient humidity;Interaction mechanisms;Light intensity;Photovoltaic power generation;Photovoltaic power generation systems;PV Power plants;Voltage deviations