Analysis and Design of Loop Gains to Optimize the Dynamic Performance of Optical Voltage Sensor Based on Pockels Effect

Li, Hui; Cui, Liyang; Wang, Xiaxiao; Lin, Zhihong; Zhang, Chunxi

doi:10.1109/jlt.2015.2432068

Cited by 6 publications

(2 citation statements)

References 20 publications

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“…Among the few studies that have already realized the potential of modern control in the theoretical and experimental analysis of OVSs, we can cite the following: [11], [14], [18], [19]. Essentially, the purpose of the OVS described in Fig.…”

Section: Phase Feedback Controlmentioning

confidence: 99%

Real-Time Polarimetric Optical High-Voltage Sensor Using Phase-Controlled Demodulation

Pereira

Galeti

Higuti

et al. 2018

J. Lightwave Technol.

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Modern smart grid designs demand reliable sensors throughout the power delivery systems, not only to monitor the quality of the electrical energy generated by different technologies (wind, solar, hydroelectric, thermoelectric, nuclear), but also as an integral part of the generation, transmission, and distribution networks control systems. Laser polarimetric interferometry is a very suitable technique for the implementation of high sensitivity measurement instruments for various physical quantities, in particular, for high-voltage sensing. However, because the polarimetric technique is extremely sensitive to small refractive indexes variations induced in electro-optic materials by the electric field or voltage to be measured, it is also sensitive to spurious environmental quantities such as temperature variations. In this work, a novel optical voltage sensor (OVS) in conjunction with an efficient real-time method for optical phase demodulation and a PI feedback control method for signal fading suppression is demonstrated. Linearity for sinusoidal voltages having amplitudes up to 8.2 kV was evaluated, with an accuracy of 0.2% in the OVS nominal operating range. The OVS bandwidth of 5 kHz is sufficient for most electrical power quality sensor applications. Nonsinusoidal signals with high harmonic content were tested resulting in a total harmonic distortion that differed by only 0.12% from that measured by an HV reference probe. Responses to transient disturbances were also determined, showing the capability of the system to detect spikes.

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Section: Phase Feedback Controlmentioning

confidence: 99%

Real-Time Polarimetric Optical High-Voltage Sensor Using Phase-Controlled Demodulation

Pereira

Galeti

Higuti

et al. 2018

J. Lightwave Technol.

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show abstract

“…[17][18][19][20] More researchers proved that special fiber splices such as 45 splice and 90 splice are crucial for all-fiber voltage sensors. 21,22 However, the influence of them on converse piezoelectric OVS is still an urgent problem to be solved. In this article, the relationship between the output error of reflective all-fiber optic voltage sensor system and the error factor caused by optical fiber is analyzed and deduced using matrix optics method.…”

Section: Introductionmentioning

confidence: 99%

Output error of converse piezoelectric fiber voltage sensor caused by optical fiber factors

Yang

Xia

et al. 2019

International Journal of Advanced Robotic Systems

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In fiber voltage sensor, imperfect fiber splicing angle and length difference between the sensing fiber and the compensating fiber usually influence the system output performance. This article established the mathematical model of the system output error using the Jones matrix and analyzed the relationship between the system output error and the above two error factors, respectively. The results show that the angle error of 90° splice has a significant influence on the system output, and the tolerance of angle error varies with different test voltages. When the test voltage is higher than 6 kV, if the expected system error is less than 0.02%, the splicing angle error should be less than 0.15°. Additionally, the length difference also has a significant influence on the system output accuracy. The length difference between sensing fiber and compensating fiber should be less than 1 µm when the test voltage is 110 kV so that the system can meet the accuracy requirements of IEC 0.2s. This research provides a reference for the development of fiber voltage sensor based on the converse piezoelectric effect and also provides a basis for the design of intelligent power detection robot system.

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Review of research on measurement technologies of DC high voltage

Xiao

2015

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)

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Analysis and Design of Loop Gains to Optimize the Dynamic Performance of Optical Voltage Sensor Based on Pockels Effect

Cited by 6 publications

References 20 publications

Real-Time Polarimetric Optical High-Voltage Sensor Using Phase-Controlled Demodulation

Real-Time Polarimetric Optical High-Voltage Sensor Using Phase-Controlled Demodulation

Output error of converse piezoelectric fiber voltage sensor caused by optical fiber factors

Review of research on measurement technologies of DC high voltage

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