摘要
利用可控型有源补偿装置更有效的抑制谐波与电压闪变,提出了电网谐波与闪变综合抑制技术;设计了一机多能的电力电子装置,该装置采用三相四桥臂逆变器的拓扑结构,具有谐波抑制与无功补偿两种模式,分时复用;理论分析了功能切换判据的可行性,推导了基于FBD(Fryze-Buchholz-Dpenbrock)法的快速检测算法。仿真结果证明了电网谐波与闪变综合抑制技术的正确性,设计的装置硬件实现简单、参数调整方便,具有较好的发展前景。
To suppress harmonics and flicker more effectively by an active power compensator, the synthetic suppressing of harmonics ＆ flicker is researched. The topology of three-phase four-leg inverter is designed. The electronic system has two functions. The device automatically chooses one of suppressing harmonics and flicker in the specifically state. When the current which is needed to be compensated oversteps what it can support, the inverter compensates reactive power and harmonics at the same time. The paper gives an instant detecting method based on the FBD method, and analyzes the feasibility of the presented criterion of function change. Simulation results verify the validity of the presented scheme. The design feature can make good use of compensation capacity, and can reduce cost when the system is as effective as the device which synchronously compensates reactive power and harmonics. The realization is very simple and the adjustment of parameters is very convenient.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2007年第7期186-190,共5页
High Voltage Engineering
关键词
三相四桥臂
逆变器
谐波与闪变综合抑制
谐波抑制
无功补偿
FBD法
three-phase four-leg
inverter
synthetic suppressing of harmonics ＆ flicker
suppressing harmonics
reactive power compensation
FBD-method
