摘要
由于在公用电网里存在着大量的谐波负载,形成了无数的谐波电压和电流,从而污染电源、降低功率因数、破坏电网质量,造成重要设备的不稳定运行和损坏。而低功率因数更是影响线路及配电变压器的经济运行,对于节能降耗、提高变配电设备的供电能力极为不利。无功补偿作为电力领域的绿色工程,是当今面临发展的一个重大课题,正在受到越来越多的关注。介绍了目前电力系统大多数变电站都采用的实现实时无功补偿和电压优化的九区图控制方法,并结合德城区配电网系统实例说明了其应用效果。
In modern electric power system ,the problems generated by reactive power not only destroy electric power quality, but also endanger system staibility and economics,so more and more attention has been paid to them. The scheme of reactive power compensation as a green engineering is an important subject facing great development. This article introduces the use of the ninefield Control in real-time reactive power compensation and gives a real case.
出处
《机械工程与自动化》
2006年第4期154-156,共3页
Mechanical Engineering & Automation
关键词
无功补偿
九区图
电压优化
reactive compensation
nine-field control
voltage optimization
