Dominant low-frequency oscillation modes tracking and parameter optimisation of electrical power system using modified Prony method

2017 ◽  
Vol 11 (17) ◽  
pp. 4358-4364 ◽  
Author(s):  
Xin Xia ◽  
Chaoshun Li ◽  
Wei Ni
Keyword(s):  
Power System ◽  
Electrical Power ◽  
Low Frequency ◽  
Electrical Power System ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Parameter Optimisation ◽  
Prony Method ◽  
Oscillation Modes

scholarly journals Householder-based Prony Method for Identification of Low-frequency Oscillation in Power System

2019 ◽  
Vol 118 ◽  
pp. 02073
Author(s):  
Simin Zhang ◽  
Guangye Liu ◽  
Yaxin Li ◽  
Jiangang Yao
Keyword(s):  
Power System ◽  
Oscillation Mode ◽  
Low Frequency ◽  
Large Error ◽  
Analysis Tool ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Prony Method ◽  
Prony Algorithm ◽  
Actual Operation

In this paper, the Prony analysis tool with the software used in the actual operation has a large error. The improved Prony method is used to identify the low-frequency oscillation mode of the power system. The traditional Prony algorithm has the problem of insensitivity to parameter error estimation in low frequency oscillation, which affects the accuracy and accuracy of the least squares calculation. Therefore, this paper proposes a Prony method power system low frequency oscillation method using Householder transform to make the calculation more Accurate and proven to be more efficient and reliable.

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