Research on Harmonic Detection Method of Multi-function Grid-connected Inverter

2020 ◽  
Author(s):  
Wenyong Sun ◽  
Yulei Gong
Keyword(s):  
Detection Method ◽  
Harmonic Detection ◽  
Grid Connected Inverter

An effective passive islanding detection method for PV single-phase grid-connected inverter

Solar Energy ◽  
2013 ◽  
Vol 97 ◽  
pp. 155-167 ◽  
Author(s):  
Ku Nurul Edhura Ku Ahmad ◽  
Nasrudin Abd Rahim ◽  
Jeyraj Selvaraj ◽  
Ahmad Rivai ◽  
Krismadinata Chaniago
Keyword(s):  
Single Phase ◽  
Detection Method ◽  
Islanding Detection ◽  
Grid Connected Inverter

A New Electric Power Harmonic Detection Scheme

2013 ◽  
Vol 341-342 ◽  
pp. 1308-1312
Author(s):  
Chao Wang
Keyword(s):  
Power System ◽  
Detection Method ◽  
Frequency Change ◽  
Matlab Simulation ◽  
Harmonic Detection ◽  
Detection Scheme ◽  
The Troubles ◽  
System Protection ◽  
Three Phase ◽  
Intelligent Devices

Microcomputer relay is a kind of intelligent devices used for detecting and protecting power system. Whenever, it quickly calculate whether the power system is wrong or not on the basis of the fundamental and harmonics detected from power system, And according to the calculating results to obviate the troubles, among them, the fundamental and harmonics acquired accurately in time is the most important part of the power system protection process. The basic principle of d-q fundamental and harmonics voltage detection is presented and on this basis a fundamental and harmonics detection method of presumption the transformation frequency is put forward. The results of the theoretical analysis and MATLAB simulation indicate that the d-q method in this paper can precisely detect the voltage and frequency change of the power system in time, whether the distortion voltage or not in three-phase power system .

A Survey on Detecting Methods for Harmonic of Power System

2012 ◽  
Vol 614-615 ◽  
pp. 907-910
Author(s):  
Xue Song Zhou ◽  
Guang Zhu Chen ◽  
You Jie Ma
Keyword(s):  
Power System ◽  
Reactive Power ◽  
Detection Method ◽  
Response Speed ◽  
Development Trend ◽  
Detection Methods ◽  
Detection Accuracy ◽  
Harmonic Detection ◽  
Advantages And Disadvantages ◽  
Power System Harmonics

This paper describes Detecting Methods for Harmonics of power system has been considered one of the serious harms for power system. The research of harmonics has obtained high attention among people. The researches of harmonics detection have many methods, such as Based on Fryze theory of harmonic power detection, Instantaneous reactive power theory detection method, Fourier Transformation harmonic detection method, wavelet transform detection method, neural networks harmonic detection method etc. Aiming at harmonic detection, the different detection methods of power system harmonics are summarized and compared. This paper reviews the existing harmonic detection methods, and discuss their advantages and disadvantages in terms of detection accuracy and response speed, and finally summarizes the development trend of the harmonic detection method.

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