电力系统功率因数改善方法的分析与探讨

在电力系统中,负荷功率因数的变化直接影响系统的有功功率、影响供用电设备的利用率.同时,功率因素的变化也使输电线路的电压损失改变,影响电压质量.此外,负荷功率因数的改变还使发电机转速改变,影响电力系统的频率.因此适当提高电力系统的功率因数,不但可以充分地发挥发电、供电设备的生产能力、减少线路损耗、改善电压质量,而且可以提高用户用电设备的工作效率和为用户本身节约电能.

Analysis and Discussion on the Improving Method of Electric System Power Factor

In an electric system, the changes of load power factor affact active power of the system and operating factor of the supply power equipment directly. The changes of the power factor also make voltage loss changes of transmission lines, affecting voltage quality. In addition, the changes of load power factor also make a generator speed change, affaiting frequency of the electric power system. So the power factor of the electric power system is properly increased, not only can bring generation into full play, productive power of power supply equipment, reduce line loss, improve voltage quality, but can increase work efficiency of users power equipment and electric energy saving for users.