无功功率是交流电力系统设计和运行中的一个重要因素，为了减少电能损失，需要在电力用户端与电力系统的变电所内合理配置一定的无功补偿装置。

Workless power is an important factor in designing and running of alternating current system. A compensation device is needed in substation and the end users to save electricity.

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文中分析了影响电网功率因数的主要因素、低压电网无功补偿的常用方法及无功补偿的效益。

This article explains main factors to influence power factor in electrical network, common methods of reactive compensation in low voltage network, and the benefits of reactive compensation.

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结果表明充电机工作于充电过程时，SVG可以对无功进行有效的补偿，对电网的功率因素、电压波动具有有效的治理作用。

Research shows the SVG can effectively compensate reactive power and govern power factor of the grid the voltage fluctuation when the chargers work in the charging process.

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