摘要
低压就地无功补偿一般不适用冲击性、波动性变化剧烈的负荷。就此类负荷提出了一种低压就地无功补偿的设计方案,描述了装置设计与实现,包括晶闸管投切电容器(TSC)主电路设计、控制策略以及控制电路结构。通过Matlab仿真和采石厂实际运行,证明该设计能够快速跟踪剧烈的无功功率变化,补偿效果显著,可有效改善电压质量、提高功率因数、保证供电可靠性、降低线路损耗,补偿后平均功率因数高于0.93。
Most of local low-voltage reactive power compensation loses its effect in jerky and wavy load. A scheme of compensator for it is presented. Its design and implementation are described, including the design of TSC main circuit, control strategy and construction of contol circuit. It has been validated by simulation with Matlab and operation in practice. Results show that it follows the serious change of reactive power quickly and compensates effectively,which improves the voltage quality,elevates the power factor,ensures the power supply and decreases the line loss. After compensation ,average power factor is over 0.93.
出处
《电力自动化设备》
EI
CSCD
北大核心
2006年第4期56-59,共4页
Electric Power Automation Equipment
关键词
低压就地无功补偿
冲击性负荷
波动性负荷
local low-voltage reactive power compensation
jerky load
wavy load
