摘要
针对大功率整流生产现场谐波治理的需要,设计了一种大功率混合注入式有源电力滤波器,分析了其拓扑结构和工作原理,讨论了该有源电力滤波器的谐波抑制能力与死区补偿方法,并提出了一种基于离散傅立叶变换的滑窗迭代算法,能实时有效地检测出谐波参考指令电流;为了实时准确地进行谐波电流跟踪控制,采用了一种基于PI型学习律的迭代学习控制算法,提高了系统的跟踪精度。现场运行情况表明该大功率混合注入式有源电力滤波器能有效满足大功率负载工况下电网谐波抑制和无功补偿综合治理的需要,具有很好的工程应用效果。由于目前国内大功率混合型有源电力滤波器的工程应用实例很少,因此该套系统的设计与实现经验还可以对其它有源滤波系统的工程应用起到一定的指导和借鉴作用。
To meet the needs of harmonics suppression in high-power rectification production scene, this paper designs a type of high-power hybrid injection active power filter, analyzes its topology and work principles, and discusses its harmonic suppression capability and dead-zone compensation method. A new sliding-window iterative discrete fourier transformation algorithm is presented for harmonic reference-current's real-time and effective detection, and a PI-type iterative learning control algorithm is used to improve harmonic current's tracking precision. The application results prove that the high-power hybrid injection active power filter can effectively fulfil the integrated demands of harmonic suppression and reactive power compensation in high-power load conditions, and has good engineering application effect. For China has few applications of high-power hybrid active power filter till now, the given design method and engineering experience are useful for applications and research of other active power filters.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2007年第22期80-86,共7页
Proceedings of the CSEE
基金
国家自然科学基金项目(60474041)
国家863计划项目(2004AA001032)~~
关键词
有源滤波器
无功补偿
谐波检测
电流跟踪控制
模糊推理
active power filter
reactivecompensation
harmonic detection
current trackingfuzzy inference powercontrol