10-kV Transmission Line Experimental Platform for HEMP Immunity Test of Electrical Equipment in Operation

Chen, Yuhao; Zhang, Daozhong; Zhou, Yi; Ren, Dechang; Gou, Mingyue; Dong, Ning

doi:10.1109/tpwrd.2020.3000776

Cited by 14 publications

(6 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the storage and processing of real-time data from on-line monitoring systems of different line operation states, the following factors should be considered: the convenience of real-time data display and processing, the high efficiency of database access, the availability of historical data mining, the integrity of data information and the expandability of application [12]. The specific data processing flow is shown in Figure 1: 3) Real-time data pre-warning: through the over-standard analysis of some data or multiple conditions, the data pre-warning and alarming can be realized dynamically.…”

Section: On-line Monitoring Data Analysis and Processing Flowmentioning

confidence: 99%

Information monitoring system of transmission line operation based on data analysis

Guo¹,

Li²,

Wang³

et al. 2023

Second International Conference on Green Communication, Network, and Internet of Things (CNIoT 2022)

View full text Add to dashboard Cite

As an important part of the power transmission in the power system, the safety and stability of the transmission line directly affect the availability of the power system. With the continuous development of various industries, people's demand for energy is increasing, and the requirements for power supply reliability are also getting higher and higher. Transmission lines are an important part of the power system. Once a major power outage occurs, it will cause huge losses and inconvenience to the national economy. Therefore, the equipment and operation of transmission lines need a practical and effective management system to manage. Clearly, big data analytics has great advantages in this regard.

show abstract

Section: On-line Monitoring Data Analysis and Processing Flowmentioning

confidence: 99%

Information monitoring system of transmission line operation based on data analysis

Guo¹,

Li²,

Wang³

et al. 2023

Second International Conference on Green Communication, Network, and Internet of Things (CNIoT 2022)

View full text Add to dashboard Cite

show abstract

“…The electrical grid has become more complicated and vulnerable to unusual electromagnetic phenomena, such as very fast transient overvoltage (VFTO), due to more electronics and informational devices being used. High-Altitude Electromagnetic Pulse (HEMP) could induce a fast, high-amplitude current or voltage pulse on the transmission line, threatening the devices connected to the transmission line, such as metal oxide arresters, insulators, and transformers [1][2][3][4][5][6]. Because the whole electrical grid cannot be tested under a HEMP radiation wave simulator, such as a vertical or horizontal polarization device, the main testing method is to use pulse injection, which injects the energy of a HEMP into the electrical equipment.…”

Section: Introductionmentioning

confidence: 99%

The Statistical Characteristics Analysis for Overvoltage of Elevated Transmission Line under High-Altitude Electromagnetic Pulse Based on Rosenblatt Transformation and Polynomial Chaos Expansion

Liu,

Hei,

Mao

et al. 2023

Energies

View full text Add to dashboard Cite

A High-Altitude Electromagnetic Pulse (HEMP) could induce very fast transient overvoltage (VFTO) with nanosecond level rise time and mega-volt amplitude, which severely threatens the electrical devices connected to the elevated transmission line. An elevated transmission line with different locations may suffer different levels of HEMP threat since the dip angle could influence the polarization of the HEMP wave. The combination of Rosenblatt Transformation and Polynomial Chaos Expansion (R-PCE) is introduced in this paper. With this method, the efficiency of calculating the overvoltage of an elevated transmission line under HEMP is improved, speeding up 24.75 times. The influence of different factors (dip angle, elevated height, and earth conductivity) on the overvoltage of elevated transmission lines applied in power systems is calculated and analyzed. The numerical result shows with 99.9% confidence that the overvoltage would be over 3.7 MV of amplitude and 6.7 × 1014 V/s of voltage derivative, which is much more rigorous than a lighting pulse. We also find that elevated transmission lines may have a larger HEMP threat in a small dip angle area. The corresponding data are shown at the end of the paper, which could be useful for relative researchers in pulse injection experiments and reliable evaluation.

show abstract

“…In order to test the vulnerability of electrical/electronic units to intense transient electromagnetic disturbances, such as those due to high-altitude (HEMP) or lightning (LEMP) electromagnetic pulses, several aerospace and military standards foresee both radiated and conducted procedures to induce at the input pins of the device under test (DUT) a stress waveform with assigned characteristics [1]- [3]. The pertinent setups [4]- [6] usually resort to inductive or capacitive couplers [5] to inject specified transient disturbances into the cables connected with the DUT. For instance, the exploited inductive couplers are very similar to the probes used for bulk current injection, and are usually manufactured by winding the inner conductor around a toroidal ferrite/nano-crystalline magnetic core.…”

Section: Introductionmentioning

confidence: 99%

Behavioral Modeling of an Off-the-Shelf Damped Sinusoidal Transient Generator

Liu

Grassi

Trotti³

et al. 2022

IEEE Lett. on Electromagn. Compat. Pract. and Appl.

View full text Add to dashboard Cite

In this paper, experimental characterization and behavioral modeling of an off-the-shelf damped sinusoidal wave generator operating at different frequencies are addressed. Two modeling strategies are developed which lead to an active and a passive circuit representation of the generator, whose involved parameters are optimized by making use of time-domain measurement results obtained with the generator connected to different load impedances. It is shown that either the active or the passive model can assure accurate prediction of the generated waveforms, depending on the specific frequency. The proposed models can be effortlessly implemented in common circuit simulators, and used for systematic design of injection devices for transient conducted susceptibility testing as well as for simulation of the corresponding test setups. As an illustrative example, the proposed models are exploited to predict the actual waveform induced at the input pins of the device under test in a simplified pulse current injection test setup.

show abstract

10-kV Transmission Line Experimental Platform for HEMP Immunity Test of Electrical Equipment in Operation

Cited by 14 publications

References 17 publications

Information monitoring system of transmission line operation based on data analysis

Information monitoring system of transmission line operation based on data analysis

The Statistical Characteristics Analysis for Overvoltage of Elevated Transmission Line under High-Altitude Electromagnetic Pulse Based on Rosenblatt Transformation and Polynomial Chaos Expansion

Behavioral Modeling of an Off-the-Shelf Damped Sinusoidal Transient Generator

Contact Info

Product

Resources

About