The Simulation of Distribution Parameter of the Three-Phase D-Dot Voltage Sensor

Abstract:

As an electric coupling sensor, the D-dot voltage sensor can achieve non contact measurement of voltage. With the advantages of simple structure, a high dynamic range and measurement bandwidth, it can meet the needs of accurate measurement^[1][2]. Thus it has great application prospects in voltage on-line monitoring, relay protection or other fields in the power system. This paper considered the operation of the three-phase lines, and established the D-dot voltage sensor simulation model in the simulation platform of Ansoft Maxwell 3D. With the simulation of the sensor working conditions, we can get the distributed parameters of the system under three-phase lines in operation, construct an equivalent circuit of measurement and analyze the simulation results to get a voltage signal of input and output. The simulation results show that, with the equivalent circuit simulation of the three-phase D-dot voltage sensor, if we improve electrode capacitance parameter, there will be a good linear relationship between the input and output.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 2123-2127
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.2123
• Online since: May 2014
• Authors: Li Yun Zhu*, Jin Gang Wang, Yu Yi Fan, Yun Jie Bai
• Keywords: D-Dot, Distribution Parameters, Phase Retardation, Simulation

References

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