TWI456208B - Harmonic analysis device and harmonic analysis method thereof - Google Patents

Harmonic analysis device and harmonic analysis method thereof Download PDF

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TWI456208B
TWI456208B TW101116424A TW101116424A TWI456208B TW I456208 B TWI456208 B TW I456208B TW 101116424 A TW101116424 A TW 101116424A TW 101116424 A TW101116424 A TW 101116424A TW I456208 B TWI456208 B TW I456208B
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harmonic analysis
power
module
processing unit
harmonic
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TW101116424A
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Chinese (zh)
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TW201346279A (en
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Cheng I Chen
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Univ Asia
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Claims (13)

一種諧波分析裝置,其包含:一輸入單元,係輸入複數個電力訊號;一同步訊號模組,係調整該些電力訊號之頻率,以產生一基頻;一諧波分析模組,係分析該基頻,以取得該些電力訊號之一諧波分析資料、一電力量及一電力品質資料;一儲存模組,電性連接該諧波分析模組,係儲存該諧波分析資料、該電力量及該電力品質資料;以及一輸出單元,電性連接該諧波分析模組,係輸出該諧波分析資料、該電力量及該電力品質資料;其中,該諧波分析模組包含一第二處理單元,係分析該基頻,以取得該些電力訊號之該諧波分析資料及該電力品質資料。 A harmonic analysis device comprises: an input unit for inputting a plurality of power signals; a synchronous signal module for adjusting frequencies of the power signals to generate a fundamental frequency; and a harmonic analysis module for analyzing The fundamental frequency is used to obtain harmonic analysis data, a power quantity and a power quality data of the power signals; a storage module is electrically connected to the harmonic analysis module, and the harmonic analysis data is stored, The power quantity and the power quality data; and an output unit electrically connected to the harmonic analysis module, which outputs the harmonic analysis data, the power quantity and the power quality data; wherein the harmonic analysis module comprises a The second processing unit analyzes the fundamental frequency to obtain the harmonic analysis data of the power signals and the power quality data. 如申請專利範圍第1項所述之諧波分析裝置,其中該同步訊號模組係將時域性之該些電力訊號轉換為頻域性之該基頻。 The harmonic analysis device of claim 1, wherein the synchronous signal module converts the time domain power signals into the frequency domain of the fundamental frequency. 如申請專利範圍第1項所述之諧波分析裝置,其中該諧波分析模組包含一第一處理單元,係分解該基頻為複數個訊框,並藉由該些訊框取得該基頻之一振幅及一相角。 The harmonic analysis device of claim 1, wherein the harmonic analysis module comprises a first processing unit, which decomposes the fundamental frequency into a plurality of frames, and obtains the basis by using the frames. Frequency amplitude and one phase angle. 如申請專利範圍第3項所述之諧波分析裝置,其中該諧波分析模組係藉由該振幅及該相角取得該些電力訊號之該電力量。 The harmonic analysis device of claim 3, wherein the harmonic analysis module obtains the amount of power of the power signals by the amplitude and the phase angle. 如申請專利範圍第3項所述之諧波分析裝置,其中該第一處理單元係包含一快速傅立葉轉換法(Fast Fourier Transform,FFT)、一旋轉不變信號參數估測技術(Estimation of Signal Parameters via Rotational Invariance Technique,ESPRIT)、一多重訊號分類法(Multiple Signal Classification,MUSIC)、一普羅尼法(Prony’s Method)及一類神經網路其中之一或其組合。 The harmonic analysis device of claim 3, wherein the first processing unit comprises a Fast Fourier Transform (FFT) and a rotation invariant signal parameter estimation technique (Estimation of Signal). Parameters via Rotational Invariance Technique (ESPRIT), a Multiple Signal Classification (MUSIC), a Prony’s Method, and one or a combination of neural networks. 如申請專利範圍第1項所述之諧波分析裝置,其中該第二處理單元係包含一適應性線性類神經網路(Adaptive Linear Neural Network,ADALINE)、一卡爾曼濾波器(Kalman Filtering)以及一相鎖迴路法(Phase-Lock-Loop Based Method,PLL-Based Method)其中之一或其組合。 The harmonic analysis device of claim 1, wherein the second processing unit comprises an Adaptive Linear Neural Network (ADALINE), a Kalman Filter, and One or a combination of the Phase-Lock-Loop Based Method (PLL-Based Method). 一種諧波分析方法,適用於一諧波分析裝置,該諧波分析裝置包含一輸入單元、一同步訊號模組、一諧波分析模組、一儲存模組以及一輸出單元,其中該諧波分析模組係包含一第二處理單元,該諧波分析方法包含下列步驟:藉由該輸入單元輸入複數個電力訊號;藉由該同步訊號模組調整該些電力訊號之頻率,以產生一基頻;藉由該諧波分析模組分析該基頻,以取得該些電力訊號之一諧波分析資料、一電力量及一電力品質資料;藉由該儲存模組儲存該諧波分析資料、該電力量及該電力品質資料;藉由該輸出單元輸出該諧波分析資料、該電力量及該電力品質資料;以及藉由該第二處理單元分析該基頻,以取得該些電力訊號之該諧波分析資料及該電力品質資料。 A harmonic analysis method is applicable to a harmonic analysis device, the harmonic analysis device comprising an input unit, a synchronous signal module, a harmonic analysis module, a storage module and an output unit, wherein the harmonic The analysis module includes a second processing unit, the harmonic analysis method includes the following steps: inputting a plurality of power signals by the input unit; and adjusting the frequency of the power signals by the synchronous signal module to generate a base Frequency analysis; analyzing the fundamental frequency by the harmonic analysis module to obtain harmonic analysis data, a power quantity and a power quality data of the power signals; and storing the harmonic analysis data by using the storage module, The power quantity and the power quality data; the harmonic analysis data, the power quantity and the power quality data are output by the output unit; and the fundamental frequency is analyzed by the second processing unit to obtain the power signals The harmonic analysis data and the power quality data. 如申請專利範圍第7項所述之諧波分析方法,更包含下列步驟:藉由該同步訊號模組將時域性之該些電力訊號轉換為頻域性之該 基頻。 The method for harmonic analysis according to claim 7 further includes the following steps: converting the time-domain electrical signals to frequency domain by the synchronous signal module Baseband. 如申請專利範圍第7項所述之諧波分析方法,其中該諧波分析模組係包含一第一處理單元。 The harmonic analysis method of claim 7, wherein the harmonic analysis module comprises a first processing unit. 如申請專利範圍第9項所述之諧波分析方法,更包含下列步驟:藉由該第一處理單元分解該基頻為複數個訊框;以及藉由該第一處理單元分析該些訊框,以取得該基頻之一振幅及一相角。 The method for harmonic analysis according to claim 9 further includes the steps of: decomposing the fundamental frequency into a plurality of frames by the first processing unit; and analyzing the frames by the first processing unit To obtain one of the amplitudes of the fundamental frequency and a phase angle. 如申請專利範圍第10項所述之諧波分析方法,更包含下列步驟:提供該諧波分析模組根據該基頻之該振幅及該相角取得該些電力訊號之該電力量。 The method of harmonic analysis according to claim 10, further comprising the step of: providing the harmonic analysis module to obtain the amount of power of the power signals according to the amplitude of the fundamental frequency and the phase angle. 如申請專利範圍第9項所述之諧波分析方法,其中該第一處理單元係包含一快速傅立葉轉換法(Fast Fourier Transform,FFT)、一旋轉不變信號參數估測技術(Estimation of Signal Parameters via Rotational Invariance Technique,ESPRIT)、一多重訊號分類法(Multiple Signal Classification,MUSIC)、一普羅尼法(Prony’s Method)及一類神經網路其中之一或其組合。 The method of harmonic analysis according to claim 9, wherein the first processing unit comprises a Fast Fourier Transform (FFT) and a rotation-invariant signal parameter estimation technique (Estimation of Signal Parameters). Via Rotational Invariance Technique, ESPRIT), a Multiple Signal Classification (MUSIC), a Prony's Method, and one or a combination of neural networks. 如申請專利範圍第7項所述之諧波分析方法,其中該第二處理單元係包含一適應性線性類神經網路(Adaptive Linear Neural Network,ADALINE)、一卡爾曼濾波器(Kalman Filtering)以及一相鎖迴路法(Phase-Lock-Loop Based Method,PLL-Based Method)其中之一或其組合。 The method of harmonic analysis according to claim 7, wherein the second processing unit comprises an Adaptive Linear Neural Network (ADALINE), a Kalman Filter, and One or a combination of the Phase-Lock-Loop Based Method (PLL-Based Method).
TW101116424A 2012-05-08 2012-05-08 Harmonic analysis device and harmonic analysis method thereof TWI456208B (en)

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CN101097653A (en) * 2007-07-17 2008-01-02 东北大学 Electric energy quality and electrical power system malfunction detection wave recording device and method
TW200942844A (en) * 2008-04-01 2009-10-16 Test Research Inc Electronic device testing system and method

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CN101097653A (en) * 2007-07-17 2008-01-02 东北大学 Electric energy quality and electrical power system malfunction detection wave recording device and method
TW200942844A (en) * 2008-04-01 2009-10-16 Test Research Inc Electronic device testing system and method

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