电气技术
電氣技術
전기기술
ELECTRICAL ENGINEERING
2012年
5期
6-10
,共5页
胡晓曦%刘含露%熊婷婷%胡京莹
鬍曉晞%劉含露%熊婷婷%鬍京瑩
호효희%류함로%웅정정%호경형
电能质量%Hilbert-Huang变换%多扰动信号%谐波%电压暂降%电压中断
電能質量%Hilbert-Huang變換%多擾動信號%諧波%電壓暫降%電壓中斷
전능질량%Hilbert-Huang변환%다우동신호%해파%전압잠강%전압중단
power quality%hilbert-Huang transform%multi-disturbances signal%harmonics%voltage dips%voltage interruption
电力系统中大量非线性负荷的使用导致了电能质量信号的非平稳性和复杂性。针对复杂电能质量信号的检测问题，文中采用Hilbert-Huang变换（HHT）对复杂电能质量信号进行分析。介绍了HHT的基本原理；提出了实现复杂电能质量信号检测的HHT方法；分析了HHT在复杂电能质量信号检测中的优越性。仿真试验表明该方法可以实时精确的检测扰动起止时刻和扰动幅度，适用于电能质量多扰动的检测和辨识系统。
電力繫統中大量非線性負荷的使用導緻瞭電能質量信號的非平穩性和複雜性。針對複雜電能質量信號的檢測問題，文中採用Hilbert-Huang變換（HHT）對複雜電能質量信號進行分析。介紹瞭HHT的基本原理；提齣瞭實現複雜電能質量信號檢測的HHT方法；分析瞭HHT在複雜電能質量信號檢測中的優越性。倣真試驗錶明該方法可以實時精確的檢測擾動起止時刻和擾動幅度，適用于電能質量多擾動的檢測和辨識繫統。
전력계통중대량비선성부하적사용도치료전능질량신호적비평은성화복잡성。침대복잡전능질량신호적검측문제，문중채용Hilbert-Huang변환（HHT）대복잡전능질량신호진행분석。개소료HHT적기본원리；제출료실현복잡전능질량신호검측적HHT방법；분석료HHT재복잡전능질량신호검측중적우월성。방진시험표명해방법가이실시정학적검측우동기지시각화우동폭도，괄용우전능질량다우동적검측화변식계통。
Lots of nonlinear loads using in power system led to the non-stationary and complexity of power quality signals. For the complex power quality signal detection problem, this article uses the Hilbert-Huang transform （HHT） for analysis of the principle of HHT; put forward the HHT method to complex power quality signal. Introduced the basic realize the detection of the complex power quality signal; analysed of the superiority of HHT in the detection of the complex power quality signal. The simulation results show that this method can be a real-time accurate detection of perturbation starting and ending time and perturbation amplitude, and applicable to the detection and identification system of the multi-disturbances power quality.
