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Sensors 2014, 14(7), 12771-12783; doi:10.3390/s140712771
Article

Design, Experiments and Simulation of Voltage Transformers on the Basis of a Differential Input D-dot Sensor

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Received: 29 April 2014; in revised form: 4 July 2014 / Accepted: 4 July 2014 / Published: 17 July 2014
(This article belongs to the Section Physical Sensors)
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Abstract: Currently available traditional electromagnetic voltage sensors fail to meet the measurement requirements of the smart grid, because of low accuracy in the static and dynamic ranges and the occurrence of ferromagnetic resonance attributed to overvoltage and output short circuit. This work develops a new non-contact high-bandwidth voltage measurement system for power equipment. This system aims at the miniaturization and non-contact measurement of the smart grid. After traditional D-dot voltage probe analysis, an improved method is proposed. For the sensor to work in a self-integrating pattern, the differential input pattern is adopted for circuit design, and grounding is removed. To prove the structure design, circuit component parameters, and insulation characteristics, Ansoft Maxwell software is used for the simulation. Moreover, the new probe was tested on a 10 kV high-voltage test platform for steady-state error and transient behavior. Experimental results ascertain that the root mean square values of measured voltage are precise and that the phase error is small. The D-dot voltage sensor not only meets the requirement of high accuracy but also exhibits satisfactory transient response. This sensor can meet the intelligence, miniaturization, and convenience requirements of the smart grid.
Keywords: electric field simulation; D-dot voltage probe; differential input; non-contact measurement; Ansoft Maxwell electric field simulation; D-dot voltage probe; differential input; non-contact measurement; Ansoft Maxwell
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wang, J.; Gao, C.; Yang, J. Design, Experiments and Simulation of Voltage Transformers on the Basis of a Differential Input D-dot Sensor. Sensors 2014, 14, 12771-12783.

AMA Style

Wang J, Gao C, Yang J. Design, Experiments and Simulation of Voltage Transformers on the Basis of a Differential Input D-dot Sensor. Sensors. 2014; 14(7):12771-12783.

Chicago/Turabian Style

Wang, Jingang; Gao, Can; Yang, Jie. 2014. "Design, Experiments and Simulation of Voltage Transformers on the Basis of a Differential Input D-dot Sensor." Sensors 14, no. 7: 12771-12783.


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