CHEN Lei,XIE Xiaorong,YU Guangyuan,et al.Phasor Measurement Method for Unbalanced Three-phase High-frequency Oscillation[J].Automation of Electric Power Systems,2021,45(24):142-148.
CHEN Lei,XIE Xiaorong,YU Guangyuan,et al.Phasor Measurement Method for Unbalanced Three-phase High-frequency Oscillation[J].Automation of Electric Power Systems,2021,45(24):142-148. DOI: 10.7500/AEPS20210515003.
Phasor Measurement Method for Unbalanced Three-phase High-frequency Oscillation
Real-time measurement of high-frequency oscillation (HFO) phasors can provide the information support for adaptive suppression of HFOs. However
there may be unstable modes in both positive and negative sequences at the HFO frequency
which results in the obvious unbalanced three-phase characteristics of the oscillation signal and affects the measurement accuracy of HFO phasors. Therefore
an HFO phasor measurement method based on the sinc interpolation function is proposed. First
the system three-phase signal is transferred by Clark transform. Then
the negative sequence oscillation component is modeled based on sinc interpolation function to further solve the phasor and frequency of HFOs. Finally
by using numerical simulation signals
PSCAD simulation data and measured data
it is found that the proposed method has better interference suppression ability against negative sequence component and higher accuracy than the traditional method.
FENG Junjie , ZOU Changyue , YANG Shuangfei , et al . Accurate impedance modeling and characteristic analysis of VSC-HVDC system for mid- and high-frequency resonance problems [J]. Proceedings of the CSEE , 2020 , 40 ( 15 ): 4805 - 4819 .
GUO Xianshan , LIU Bin , MEI Hongming , et al . Analysis and suppression of resonance between AC and DC systems in Chongqing-Hubei back-to-back HVDC project of China [J]. Automation of Electric Power Systems , 2020 , 44 ( 20 ): 157 - 167 .
HU Jun , ZHAO Shuai , OUYANG Yong , et al . High performance current sensors based on giant magnetoresistance effect and practical applications in smart grids [J]. High Voltage Engineering , 2017 , 43 ( 7 ): 2278 - 2286 .
OUYANG Yong , WANG Zhongxu , ZHAO Gen , et al . Current sensors based on GMR effect for smart grid applications [J]. Sensors and Actuators A: Physical , 2019 , 294 : 8 - 16 .
MAN J , XIE X , XU S , et al . Frequency-coupling impedance model based analysis of a high-frequency resonance incident in an actual MMC-HVDC system [J]. IEEE Transactions on Power Delivery , 2020 , 35 ( 6 ): 2963 - 2971 .
CASTELLO P , FERRERO R , PEGORARO P A . Effect of unbalance on positive-sequence synchrophasor, frequency, and ROCOF estimations [J]. IEEE Transactions on Instrumentation and Measurement , 2018 , 67 ( 5 ): 1036 - 1046 .
ZHANG Cheng , JIN Tao . Identification of power system low frequency oscillations with ISPM and SDM-Prony [J]. Power System Technology , 2016 , 40 ( 4 ): 1209 - 1216 .
WANG Zhen , LI Cheng , LIN Zhifang , et al . Research on low frequency oscillation mode identification based on FOMC-HTLS-Adaline algorithm considering colored Gaussian noises [J]. Transactions of China Electrotechnical Society , 2017 , 32 ( 6 ): 21 - 30 .
WU Xi , CHEN Xi , LÜ Wan , et al . Review of detection and online localization technology of sub-synchronous oscillation in power system [J]. Electric Power Automation Equipment , 2020 , 40 ( 9 ): 129 - 141 .
LIU Hao , LI Jue , BI Tianshu , et al . Subsynchronous and supersynchronous inter-harmonic identification method based on phasor measurements [J]. Power System Technology , 2017 , 41 ( 10 ): 3237 - 3243 .
YANG X , ZHANG J , XIE X , et al . Interpolated DFT-based identification of sub-synchronous oscillation parameters using synchrophasor data [J]. IEEE Transactions on Smart Grid , 2020 , 11 ( 3 ): 2662 - 2675 .
WANG Maohai , QI Xia . Fast online detection method for power system sub-synchronous oscillation components [J]. Automation of Electric Power Systems , 2016 , 40 ( 18 ): 149 - 154 .
XIE Xiaorong , WANG Yin , LIU Huakun , et al . Detection method for sub-synchronous and super-synchronous harmonic phasors in power system [J]. Automation of Electric Power Systems , 2016 , 40 ( 21 ): 189 - 194 .
CHEN L , ZHAO W , WANG F , et al . An interharmonic phasor and frequency estimator for subsynchronous oscillation identification and monitoring [J]. IEEE Transactions on Instrumentation and Measurement , 2019 , 68 ( 6 ): 1714 - 1723 .
LIU Hao , REN Xiaowei , TIAN Jiannan , et al . Fast wide-frequency measurement method based on kurtosis-estimation of signal parameters via rotation invariance technique [J]. Automation of Electric Power Systems , 2020 , 44 ( 10 ): 186 - 192 .
FAN Chen , YAO Jianguo , CHANG Naichao , et al . Discussion on wide-frequency measurement technology for power electronized power grid [J]. Automation of Electric Power Systems , 2019 , 43 ( 16 ): 1 - 10 .
CHEN L , ZHAO W , WANG Q , et al . Dynamic harmonic synchrophasor estimator based on sinc interpolation functions [J]. IEEE Transactions on Instrumentation and Measurement , 2019 , 68 ( 9 ): 3054 - 3065 .
WANG Fuping , ZHAO Wei , GUO Lei , et al . Optimal filter design for synchrophasor and frequency measurement [J]. Proceedings of the CSEE , 2017 , 37 ( 22 ): 6691 - 6699 .
Measuring relays and protection equipment: Part 118-1 synchrophasor for power systems—measurements : IEC/IEEE 60255-118-1—2018 [S]. 2018 .