Harmonic transmission characteristics testing and key parameter research of CVT

The Capacitive voltage transformers (CVT) have been widely applied to power systems, but due to their structure containing capacitors and nonlinear inductors, they cannot accurately measure harmonics. The article first analyzes the working principle and harmonic transmission characteristics (HTCs) o...

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Bibliographic Details
Published in2024 IEEE 6th Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC) Vol. 6; pp. 261 - 264
Main Authors Lu, Wenhao, Lei, Yuanyuan, Wu, Jiyang, Cui, Yanjie, Peng, Guangqiang, Chen, Ming, Wang, Song, Zhang, Xi
Format Conference Proceeding
LanguageEnglish
Published IEEE 24.05.2024
Subjects
Capacitor voltage transformer
Capacitors
Harmonic wave
Key parameter
Power measurement
Power system harmonics
Simulation
Transfer function
Transfer functions
Voltage measurement
Voltage transformers
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Summary:The Capacitive voltage transformers (CVT) have been widely applied to power systems, but due to their structure containing capacitors and nonlinear inductors, they cannot accurately measure harmonics. The article first analyzes the working principle and harmonic transmission characteristics (HTCs) of CVTs. Subsequently, it is possible to comprehensively consider factors such as CVT manufacturing parameters and stray capacitance, establish a CVT harmonic impedance model, and derive its complete transfer function. The simulation results of the model can be compared with the measured CVT harmonic test results, ultimately verifying the accuracy of the model.
ISSN:2693-2776
DOI:10.1109/IMCEC59810.2024.10575156