一种改进的FBD指令电流检测方法研究

在有源滤波器设计中,指令电流的检测是控制与补偿的关键技术环节.在三相电压不对称情况下,由于a相电压与其正序电压之间存在相位差,使传统FBD检测法在提取指令电流时存在误差,针对此不足提出一种改进的FBD检测法,该方法通过瞬时对称分量法检测电网电压基波正序分量的相位,减小了因三相电压不对称而导致的检测误差,同时引入电流平均值理论提取等效电导的直流分量,提高了指令电流检测的动态响应能力.仿真结果表明,基于改进FBD法的有源滤波器能够快速准确地检测和补偿三相不对称系统中的谐波和无功电流....

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Published in电测与仪表 Vol. 52; no. 6; pp. 33 - 38
Main Author 黄知超 苏晓鹏 李俊 刘超攀
Format Journal Article
LanguageChinese
Published 桂林电子科技大学,广西桂林,541004%广西电网公司桂林供电局,广西桂林,541002 2015
Subjects
FBD法
三相不对称系统
平均值理论
瞬时对称分量
三相不对称系统
平均值理论
instantaneous symmetrical components
three-phase asymmetry system
current mean value theory
FBD法
瞬时对称分量
FBD method
Online AccessGet full text
ISSN1001-1390

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Abstract 在有源滤波器设计中,指令电流的检测是控制与补偿的关键技术环节.在三相电压不对称情况下,由于a相电压与其正序电压之间存在相位差,使传统FBD检测法在提取指令电流时存在误差,针对此不足提出一种改进的FBD检测法,该方法通过瞬时对称分量法检测电网电压基波正序分量的相位,减小了因三相电压不对称而导致的检测误差,同时引入电流平均值理论提取等效电导的直流分量,提高了指令电流检测的动态响应能力.仿真结果表明,基于改进FBD法的有源滤波器能够快速准确地检测和补偿三相不对称系统中的谐波和无功电流.
AbstractList TM714; 在有源滤波器设计中,指令电流的检测是控制与补偿的关键技术环节.在三相电压不对称情况下,由于a相电压与其正序电压之间存在相位差,使传统FBD检测法在提取指令电流时存在误差,针对此不足提出一种改进的FBD检测法,该方法通过瞬时对称分量法检测电网电压基波正序分量的相位,减小了因三相电压不对称而导致的检测误差,同时引入电流平均值理论提取等效电导的直流分量,提高了指令电流检测的动态响应能力.仿真结果表明,基于改进FBD法的有源滤波器能够快速准确地检测和补偿三相不对称系统中的谐波和无功电流.
在有源滤波器设计中,指令电流的检测是控制与补偿的关键技术环节.在三相电压不对称情况下,由于a相电压与其正序电压之间存在相位差,使传统FBD检测法在提取指令电流时存在误差,针对此不足提出一种改进的FBD检测法,该方法通过瞬时对称分量法检测电网电压基波正序分量的相位,减小了因三相电压不对称而导致的检测误差,同时引入电流平均值理论提取等效电导的直流分量,提高了指令电流检测的动态响应能力.仿真结果表明,基于改进FBD法的有源滤波器能够快速准确地检测和补偿三相不对称系统中的谐波和无功电流.
Author 黄知超 苏晓鹏 李俊 刘超攀
AuthorAffiliation 桂林电子科技大学,广西桂林541004 广西电网公司桂林供电局,广西桂林541002
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Author_FL Su Xiaopeng
Huang Zhichao
Li Jun
Liu Chaopan
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DocumentTitleAlternate Research on the improved directive current detecting method based on FBD
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Keywords 三相不对称系统
平均值理论
instantaneous symmetrical components
three-phase asymmetry system
current mean value theory
FBD法
瞬时对称分量
FBD method
Language Chinese
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Notes Huang Zhichao,Su Xiaopeng,Li Jun,Liu Chaopan（1.Guilin University of Electronic Technology, Guilin 541004, Guangxi, China;2.Guilin Power Supply Bureau,Guangxi Power Grid Company, Guilin 541002, Guangxi , China）
23-1202/TH
three-phase asymmetry system;FBD method;instantaneous symmetrical components;current mean value theory
The detection of the directive current is the critical technology of control and compensation in the design of active power filters （APF）.Because of the phase difference between the a-phase voltage and its positive sequence voltage in the three-phase asymmetry system,the directive current cannot be detected accurately by the traditional FBD method.In view of this,an improved FBD detecting method was proposed.This method detected the phase of the fundamental positive-sequence voltage by instantaneous symmetrical components,which reduced the detection error caused by the three-phase voltage asymmetry,and introduced the current mean value theory to extract the DC component of equivalent conductanc
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Publisher 桂林电子科技大学,广西桂林,541004%广西电网公司桂林供电局,广西桂林,541002
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Snippet 在有源滤波器设计中,指令电流的检测是控制与补偿的关键技术环节.在三相电压不对称情况下,由于a相电压与其正序电压之间存在相位差,使传统FBD检测法在提取指令电流时存在误...
TM714; 在有源滤波器设计中,指令电流的检测是控制与补偿的关键技术环节.在三相电压不对称情况下,由于a相电压与其正序电压之间存在相位差,使传统FBD检测法在提取指令电流时...
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StartPage 33
SubjectTerms FBD法
三相不对称系统
平均值理论
瞬时对称分量
Title 一种改进的FBD指令电流检测方法研究
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