Advanced Dual-Probes Noncontact Voltage Measurement Approach for AC/DC Power Transmission Wire Based on the Electric Field Radiation Principle

Xing, Yankai; Liu, Jinpu; Li, Fuchao; Zhang, Guangdou; Li, Jian

doi:10.1109/tim.2023.3315402

Cited by 3 publications

(3 citation statements)

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“…To have a smart grid, it is necessary to monitor the grid voltage, and given the changes in the loads of the current electricity system, the continuous monitoring of this voltage is necessary. The correct management of these measures requires cyber-physical systems (CPS) made up of computer systems for data processing, communication networks, and sensors that allow interaction with the physical world and the virtual or computer world [1].…”

Section: Introductionmentioning

confidence: 99%

“…In the classification of analogue isolated high-voltage probes, two types can be distinguished according to the location of the isolation: those using a non-intrusive sensor/measuring coupling system [1,2] and those using an intrusive one [3,4], that connect a circuit to the system and then use a coupling method, either optical, capacitive, inductive, or through the power supply, to achieve the isolation. In [1], the authors present a nonintrusive probe for the non-contact measurement of voltages of 10 kV and a bandwidth of 4.5 MHz, based on the electric field coupling principle using the dual-pin-type probe method. Also based on non-intrusive capacitive coupling, the development of a probe for voltage measurements up to 1000 V, for the direct proportional measurement of the true RMS value containing a 50-60 Hz waveform with a cut-off frequency of 6 kHz, is presented in [2].…”

Section: Introductionmentioning

confidence: 99%

“…Also based on non-intrusive capacitive coupling, the development of a probe for voltage measurements up to 1000 V, for the direct proportional measurement of the true RMS value containing a 50-60 Hz waveform with a cut-off frequency of 6 kHz, is presented in [2]. These systems [1,2] are coupling systems designed to clamp the cable to be measured, making them difficult to use when the cables are thin, as the development of mechanical coupling becomes more complex.…”

Section: Introductionmentioning

confidence: 99%

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Remote Low-Cost Differential Isolated Probe for Voltage Measurements

Antolín-Cañada,

Perez-Cebolla,

Eneriz

et al. 2024

Applied Sciences

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The growing development of communication technologies has given rise to the Internet of Things, which has led to the emergence of new cities, smart grids, and smart buildings, and the development of energy generation using renewable sources, as well as the emergence of new electrical loads such as the electric car. These advances give rise to the need for new media devices with remote communication, and require a greater control and monitoring of the state of the electrical grid in order to verify its correct state, as well as the detection of faults or alterations that are occurring in it due to these new generation systems or new loads. These remote, unsupervised measurement devices require galvanic isolation to protect the measurement and communication system, so that even if there is a break in the isolation, the integrity of the measurement and communication system is maintained. In addition, as it is a device prepared for multipoint measurement, the cost of the probe must be contained. This article details the design, implementation, and validation of a low-cost remote isolated differential voltage probe. This probe is intended for monitoring at network supply points, as well as for the verification of the European standard EN 50160 as a means of detecting disturbances in network behaviour. Its characteristics as a differential and isolated probe provide it with the possibility of floating voltage averaging, guaranteeing the integrity of the electronics of the low-voltage probe, i.e., the digitalisation and communication system. The measurements collected are sent via an MQTT protocol, which makes the remote probe a device compatible with the Internet of Energy. For the validation of the probe, a full functional test is performed, including FFT spectral analysis to verify the compliance of the mains voltage with the aforementioned European standard EN 50160.

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Section: Introductionmentioning

confidence: 99%