A General Noise-Resilient Technique Based on the Matrix Pencil Method for the Assessment of Harmonics and Interharmonics in Power Systems

作者：Sheshyekani Keyhan^*; Fallahi Ghasem; Hamzeh Mohsen; Kheradmandi Morteza

来源：IEEE Transactions on Power Delivery, 2017, 32(5): 2179-2188.

DOI：10.1109/TPWRD.2016.2625329

• Eigen value
• damping factors
• dc offset
• harmonic
• interharmonic
• Matrix Pencil Method
• noise
• power quality

This paper presents a high-accuracy technique for the assessment of harmonics and interharmonics in power systems. In the proposed method, a generalized eigenvalue problem is solved by making use of the matrix pencil method. It is a general method in the sense that it has the ability to predict the frequency, amplitude, and relative phase of frequency components present in a given signal, while the dc-off set and damping factors can be accurately estimated. It also offers a noise-resilient feature which helps to efficiently analyze the noise-contaminated signals. It shows a good performance in dealing with modulated signals as well. Due to its excellent accuracy, the proposed method is foreseen to properly work for the estimation of phasors which is a crucial need in the electrical networks. Different simulation and experimental cases are presented to evaluate the efficiency of the proposed method.

• 出版日期2017-10