基于零电压直流均压电路和分层控制的中压级联有源滤波器

被引：5

作者：

高聪哲 ^{[1
]}

姜新建 ^{[1
]}

李永东 ^{[1
]}

陈峻岭 ^{[2
]}

机构：

[1] 清华大学电机工程与应用电子技术系

[2] 中国科学院电工研究所

来源：

清华大学学报(自然科学版) | 2012年 / 52卷 / 03期

关键词：

有源滤波器; 级联变换器; 分层控制; 软开关箝位;

D O I：

10.16511/j.cnki.qhdxxb.2012.03.016

中图分类号：

TM76 [电力系统的自动化]; TN713 [滤波技术、滤波器];

学科分类号：

080802 ; 080902 ;

摘要：

级联有源滤波器拓扑结构简洁,可不经变压器直接接入中压配网,但级联单元的数目大,控制繁杂,并且直流侧电容电压存在不均衡问题。该文提出一种中压级联有源滤波器分层控制策略,分离系统上层主功能控制和下层单元控制,扩大主控制计算的时间裕度,实现较复杂的控制算法,并保证系统动态响应速度;同时提出一种硬件辅助箝位电路及其软开关控制策略,实现直流侧电容能量交换与均压控制,并且通过相位与模式控制使辅助回路开关零电压(zerovoltage switching,ZVS)运行,提高辅助回路效率,降低开关噪声。仿真和实验研究证明:分层控制策略与软开关辅助箝位措施是实现中压级联有源滤波器的有效方法。

引用

页码：367 / 373

页数：7

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