.png){kind=icon}
返回
A Generalized Harmonic Extraction Algorithm Based on Multi-Window Average Filter Under Synchronous Rotating Frame
.png){kind=icon}
PRE
AI
DOI：10.1109/TPEL.2022.3217942.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Various harmonic extraction algorithms have been proposed to improve the steady-state and dynamic performance for active power filter. However, it is difficult to select a suitable method for a certain load current scenario. This article analyses the general characteristics of the harmonic extraction based on the frequency shift characteristic by Park transform, and it can be transformed into a low-pass filter under the synchronous rotating frame (SRF) for design. Starting from the typical average filter, a general FIR filter structure called multi-window average (MWA) is proposed. According to the actual load current components, aiming at the shortest delay, the design process and guideline are given. Combined with SRF, the MWA structure can generalize recursive discrete Fourier transform (RDFT), cascade delayed signal cancellation (CDSC) and their derived algorithms, which proves the equivalence between time-based harmonic extraction methods and frequency-based ones. Moreover, using the MWA structure can effectively reduce the complexity of the CDSC algorithm. The experiment proves that the typical RDFT and CDSC harmonic extraction can be equivalently realized by using the SRF-based structure. Under the presence of 6r + 1 and 12r - 2 harmonics, the proposed harmonic extraction time can reach 1/4 fundamental cycle. While greatly reducing the dynamic response time, the MWA structure reveals inherent unity among various harmonic extraction algorithms for the first time.
Keyword:
Power harmonic filters
Harmonic analysis
Power filters
Band-pass filters
Heuristic algorithms
Discrete Fourier transforms
Transforms
Complex signal
harmonic extraction
multi-window average (MWA)
synchronous rotating frame (SRF)
期刊
IF:
6.5
论文数:
1.7W
被引数:
8.3W
机构
引用论文
.png){kind=icon}
分享收藏Frequency-Adaptive Stationary-Reference-Frame Grid Voltage Sequence Detector for Distributed Generation Systems用于分布式发电系统的频率自适应固定参考系电网电压序列检测器
PREAI
分享收藏A Generic Open-Loop Algorithm for Three-Phase Grid Voltage/Current Synchronization With Particular Reference to Phase, Frequency, and Amplitude Estimation三相电网电压/电流同步的通用开环算法，特别参考相位，频率和幅度估计
PREAI
分享收藏
Power converter line synchronization using a discrete Fourier transform (DFT) based on a variable sample rate使用基于可变采样率的离散傅立叶变换 (DFT) 的功率转换器线路同步
PREAI
分享收藏
查看更多内容