Ground‐level DC electric field sensor for overhead HVDC/HVAC transmission lines in hybrid corridors

Cui, Yong; Song, Xiao Yan; Wang, Chen; Zhao, Luxing; Wu, Guiying

doi:10.1049/iet-gtd.2019.1413

Cited by 16 publications

(14 citation statements)

References 29 publications

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“…The edge effect increases with the number of vanes and causes a decrease in the electric field intensity. Field mills consisting of two to eight vanes are more frequently employed [ 3 , 9 , 18 , 20 , 28 , 29 , 30 , 31 ].…”

Section: Electric Field Mill Sensor and Front-end Circuitrymentioning

confidence: 99%

“…Taking into consideration that a bulky rotor design would result in higher loading of the motor and therefore higher power consumption of the motor, smaller electrode dimensions are preferred in self-powered field mill sensors. The diameters of the electrode plate vary from tens to hundreds of millimeters (30 mm [ 25 , 28 ], 85 mm [ 3 ], 114 mm [ 7 ], 115 mm [ 9 ]).…”

Section: Electric Field Mill Sensor and Front-end Circuitrymentioning

confidence: 99%

“…The dramatically increasing prospects of HVDC line utilization for power transmission in modern power systems has brought about the need to assess the electric environment (i.e., the electric field, the ion current density, and the space charge density) under the transmission lines to establish safety guidelines. Consequently, the knowledge of these parameters at and immediately above ground level is of great significance due to the possible effects on health and safety during operation [ 1 , 2 , 3 , 4 ]. Electric field estimation is also important in dusty phenomena close to the earth surface [ 5 ], for aeronautical and astronautical projects and rocket launching [ 6 ], and for airborne measurements to create a profile of the fair weather electric field [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

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Analog Sensor Interface for Field Mill Sensors in Atmospheric Applications

Agorastou

Noulis

Siskos

2022

Sensors

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An overview of the electric field mill sensor specifications in applications related to the measurement of the atmospheric electric field was conducted. The different design approaches of the field mill sensor interface are presented and analyzed, while the sensitivity-related parameters of a field mill are discussed. The design of a non-complex analog sensor interface that can be employed for the measurement of the electric field in both fair and foul weather conditions, such as thunderstorms, is implemented using discrete components for experimental validation and is optimized in an integrated version in terms of noise and power consumption. Advanced noise simulations are conducted in a 180 nm CMOS process (XH018 XFAB). The energy-autonomous operation of the sensor for extended periods of time is made feasible due to the low power consumption of the front-end circuitry (165 μW at 3 V) as well as the proposed intermittent style of operation of the motor. The total sensing system is low power, and its realization is simple and cost-effective, while also offering adequate sensitivity (45 mV/kV/m), making it comparable to the existing works.

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Section: Electric Field Mill Sensor and Front-end Circuitrymentioning

confidence: 99%

Section: Electric Field Mill Sensor and Front-end Circuitrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analog Sensor Interface for Field Mill Sensors in Atmospheric Applications

Agorastou

Noulis

Siskos

2022

Sensors

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“…e π model is suitable for analysis at low frequencies [29], whereas the universal line model is most appropriate for underground and submarine cables [33][34][35]. Other researchers used different methods for calculating the transmission line parameters [36][37][38][39][40][41][42][43][44][45][46][47] and the PSCAD/EMTDC program based on the CIGRE Benchmark to study the simulation models.…”

Section: Introductionmentioning

confidence: 99%

Effects of Conditional Changes on High-Voltage Direct Current Transmission Line Characteristic

Pothisarn

Ngaopitakkul

Leelajindakrairerk

et al. 2022

Journal of Electrical and Computer Engineering

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The high-voltage direct current (HVDC) transmission system, which links the Gurun Substation of the National Electric Authority of Malaysia (Tenaga Nasional Berhad, TNB) with the Khlong Ngae Station of the Electricity Generating Authority of Thailand (EGAT), has been extensively researched to achieve the highest quality because it is the largest of its kind in Thailand, and there is a plant to expand its transmission power. However, the impact on the whole system is under-researched. To study and develop this system, the HVDC transmission line is modelled with the MATLAB/Simulink program and a laboratory setup to investigate the effect of transmission line distance, load power, and voltage on power loss, voltage drop, and waveform. The HVDC transmission line parameters are calculated from the actual transmission line parameters and converted to the simulation model parameters using the per-unit method. The model is verified and tested by the simulation program before creating the experimental setup. The simulation and experimental results demonstrate the effects of changing system conditions via the three aspects. All the three conditions directly affect the HVDC transmission line; nevertheless, they affect each aspect differently.

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“…As a basic electromagnetic parameter of the electromagnetic environment of transmission lines, itis important to improve the accuracy of measurement of the DC electric field strength. There are two main types of DC electric-field metres: field mills [9][10][11][12][13][14] and vibrating plate electric-field metres [15,16]. To ensure the accuracy of measurement, an apparatus is required to calibrate the instruments.…”

Section: Introductionmentioning

confidence: 99%

Simulations and experiments of the generation apparatus of the DC electric field with the space charge

et al. 2021

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To make accurate measurements, field mills must be calibrated in a known DC electric field space charge in which the quantities can be control1ed. A simulation model of the generation apparatus of the electric field with a space charge has been built. Based on the combination of the electric field and the transfer of a dilute substances model, the influence of openings in the metal screen was calculated. Simulation results showed that the opening size of the high-voltage electrode has a great influence on the distribution of the electric field and ion density at the calibration zone. Next, a generation apparatus was designed and developed and ion mobility was researched. The experimental results showed that ion mobility decreased with an increase in electric field strength. However, ion mobility tends to be saturated when the electric field reaches a certain critical value. Two fitting formulas of ion mobility of positive and negative charge are proposed that can be used to predicate ion mobility in a high electric field.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Ground‐level DC electric field sensor for overhead HVDC/HVAC transmission lines in hybrid corridors

Cited by 16 publications

References 29 publications

Analog Sensor Interface for Field Mill Sensors in Atmospheric Applications

Analog Sensor Interface for Field Mill Sensors in Atmospheric Applications

Effects of Conditional Changes on High-Voltage Direct Current Transmission Line Characteristic

Simulations and experiments of the generation apparatus of the DC electric field with the space charge

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