Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/658695
Title: A Fast Orthogonal Signal-Generation Algorithm Characterized by Noise Immunity and High Accuracy for Single-Phase Grid
Authors: Liansong Xiong;Fang Zhuo;Feng Wang;Xiaokang Liu;Minghua Zhu
subject: noise immunity|Orthogonal signal generator|single-phase grid|first-order differentiating method
Year: 2016
Publisher: IEEE
Abstract: Conventional orthogonal signal-generation methods for single-phase grid suffer from long response time, approximation errors, and/or noise amplification. To remedy this problem, a novel orthogonal signal-generation algorithm, which is characterized by remarkable response speed, high accuracy, noise immunity, and easy implementation, is developed in this paper. The developed algorithm can precisely calculate the orthogonal signal within about 2.5 ms when the amplitude/phase of the grid signal changes suddenly, under the premise of not significantly increasing the computational burden compared with the conventional methods. Far more important is that the high accuracy of the proposed method is independent of the system sampling frequency; hence, effectively avoiding the approximation errors in a wide range of sampling frequencies. In addition, it is shown how the noise amplification issue caused by the developed algorithm, which is nearly equal to that of the first-order differentiating method, can be effectively solved by proper time-span scaling and restricted into an acceptable range. Finally, the validity and advancement of the developed algorithm are verified by experimental results.
URI: http://localhost/handle/Hannan/162133
http://localhost/handle/Hannan/658695
ISSN: 0885-8993
1941-0107
volume: 31
issue: 3
Appears in Collections:2016

Files in This Item:
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Title: A Fast Orthogonal Signal-Generation Algorithm Characterized by Noise Immunity and High Accuracy for Single-Phase Grid
Authors: Liansong Xiong;Fang Zhuo;Feng Wang;Xiaokang Liu;Minghua Zhu
subject: noise immunity|Orthogonal signal generator|single-phase grid|first-order differentiating method
Year: 2016
Publisher: IEEE
Abstract: Conventional orthogonal signal-generation methods for single-phase grid suffer from long response time, approximation errors, and/or noise amplification. To remedy this problem, a novel orthogonal signal-generation algorithm, which is characterized by remarkable response speed, high accuracy, noise immunity, and easy implementation, is developed in this paper. The developed algorithm can precisely calculate the orthogonal signal within about 2.5 ms when the amplitude/phase of the grid signal changes suddenly, under the premise of not significantly increasing the computational burden compared with the conventional methods. Far more important is that the high accuracy of the proposed method is independent of the system sampling frequency; hence, effectively avoiding the approximation errors in a wide range of sampling frequencies. In addition, it is shown how the noise amplification issue caused by the developed algorithm, which is nearly equal to that of the first-order differentiating method, can be effectively solved by proper time-span scaling and restricted into an acceptable range. Finally, the validity and advancement of the developed algorithm are verified by experimental results.
URI: http://localhost/handle/Hannan/162133
http://localhost/handle/Hannan/658695
ISSN: 0885-8993
1941-0107
volume: 31
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7258367.pdf535.25 kBAdobe PDFThumbnail
Preview File
Title: A Fast Orthogonal Signal-Generation Algorithm Characterized by Noise Immunity and High Accuracy for Single-Phase Grid
Authors: Liansong Xiong;Fang Zhuo;Feng Wang;Xiaokang Liu;Minghua Zhu
subject: noise immunity|Orthogonal signal generator|single-phase grid|first-order differentiating method
Year: 2016
Publisher: IEEE
Abstract: Conventional orthogonal signal-generation methods for single-phase grid suffer from long response time, approximation errors, and/or noise amplification. To remedy this problem, a novel orthogonal signal-generation algorithm, which is characterized by remarkable response speed, high accuracy, noise immunity, and easy implementation, is developed in this paper. The developed algorithm can precisely calculate the orthogonal signal within about 2.5 ms when the amplitude/phase of the grid signal changes suddenly, under the premise of not significantly increasing the computational burden compared with the conventional methods. Far more important is that the high accuracy of the proposed method is independent of the system sampling frequency; hence, effectively avoiding the approximation errors in a wide range of sampling frequencies. In addition, it is shown how the noise amplification issue caused by the developed algorithm, which is nearly equal to that of the first-order differentiating method, can be effectively solved by proper time-span scaling and restricted into an acceptable range. Finally, the validity and advancement of the developed algorithm are verified by experimental results.
URI: http://localhost/handle/Hannan/162133
http://localhost/handle/Hannan/658695
ISSN: 0885-8993
1941-0107
volume: 31
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7258367.pdf535.25 kBAdobe PDFThumbnail
Preview File