Fast Amplitude Estimation of Harmonics Using Undecimated Wavelet Packet Transform and Its Hardware Implementation
| Autor: | Vinay K. Tiwari, Amod C. Umarikar, Trapti Jain |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Discrete wavelet transform
business.industry Computer science 020209 energy 020208 electrical & electronic engineering 02 engineering and technology Fundamental frequency Wavelet packet decomposition Amplitude Robustness (computer science) Harmonics 0202 electrical engineering electronic engineering information engineering Harmonic Electrical and Electronic Engineering business Harmonic wavelet transform Field-programmable gate array Instrumentation Computer hardware Continuous wavelet transform |
| Zdroj: | IEEE Transactions on Instrumentation and Measurement. 67:65-77 |
| ISSN: | 1557-9662 0018-9456 |
| DOI: | 10.1109/tim.2017.2759358 |
| Popis: | Accurate and fast estimation of time-varying harmonics are essential requirements for online monitoring, analysis, and control of electrical power system. This paper presents a fast algorithm based on the undecimated wavelet packet transform (UWPT) to estimate the amplitude of fundamental and harmonic components of stationary as well as a time-varying power signal. The UWPT uses only one cycle of the fundamental frequency for precise measurement of time-varying harmonics while their amplitude has been determined accurately utilizing the time-invariant property of the UWPT. The robustness and accuracy of the proposed technique have been investigated on synthetic as well as experimental test signals using MATLAB tool. Further, the UWPT algorithm has also been implemented on the Xilinx Virtex-6 FPGA ML-605 board, using XSG/ISE design suite 14.2 and its performance, in terms of hardware accuracy, resource utilization as well as timing requirements have been tested using the experimental test signal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|