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光伏发电可以让一部分用户用电实现就地解决,但是分布式光伏并网发电系统中的变压器、逆变器等设备会导致系统产生无功电能。因此,需采用无功补偿的方式来降低分布式光伏并网发电系统无功对电网的影响,从而保证电网电能质量。本文对并网的分布式光伏功率因数失调的原因进行了分析,提出了若干项实用化的无功管理措施。
Photovoltaic power generation allows some users to solve the problem by using electricity. However, the devices such as transformers and inverters in the distributed photovoltaic grid-connected power generation system cause the system to generate reactive energy. Therefore, the way of reactive power compensation should be adopted to reduce the impact of reactive power of distributed PV grid-connected power generation system on the power grid to ensure the power quality of the grid. This paper analyzes the causes of grid-connected PV power factor imbalance and proposes several practical measures of reactive power management.