摘要
为解决因级联型多电平有源滤波器电路结构导致其价格比较昂贵而限制了其应用的问题,采用模块化的思想设计一种新型主电路结构。利用对输出电平进行数学排列组合,将开关进行重新布置,以实现减少开关和直流电源数量的目的。依据新型结构进行模型分析,采用三角载波的控制策略;通过DSP芯片构成100 k V·A样机进行试验,与传统的H桥级联型电路比较试验波形结果,谐波畸变率、控制波形、直流电压稳定性等多个参数分析,验证了所提新型主电路较传统电路在补偿效果和控制复杂程度等方面的优越性。
In order to solve problem that the applications of multi-level cascaded active filter are limited by its higher price due to its circuit structure, a new main circuit structure is designed in this paper based on modular idea. The out-put levels are processed with mathematical permutations and combinations, and the switch is re-arranged to reduce the numbers of switches and DC power supplies. According to the model analysis of the new structure, a triangular carrier control strategy is used. Tests were carried out on a 100 kV -A prototype consisting of a DSP chip, and from the comparison of test waveform results with the traditional cascaded H-bridge circuit and the multi-parameter analysis including harmonic distortion, control waveforms and DC voltage stability, the advantages of the new main circuit over the traditional circuit were validated from the aspects of compensation effect, control complexity, etc.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2017年第5期60-66,共7页
Proceedings of the CSU-EPSA
基金
黑龙江省创新实验资助项目:基于SHEPWM的大功率有源滤波器的设计
关键词
级联型
多电平
扩展性
三角载波控制
cascaded
multi-level
scalability
triangular carrier control
