Cable Diagnostics With Power Line Modems for Smart Grid Monitoring

Huo, Yinjia; Prasad, Gautham; Atanackovic, Lazar; Lampe, Lutz; Leung, Victor C. M.

doi:10.1109/access.2019.2914580

Cited by 38 publications

(43 citation statements)

References 46 publications

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“…Alternative solutions based on operational datasets have been developed such as cable prognostics modelling based on voltage and current [8], internet-of-things based partial discharge sensing networks [9], cable condition monitoring through power line modems, time-frequency reflectometry and machine learning strategies [10], and subsea power cable degradation analysis due to corrosion and abrasion [11].…”

Section: A Related Workmentioning

confidence: 99%

A Diagnostics Framework for Underground Power Cables Lifetime Estimation Under Uncertainty

Aizpurua

Stewart

McArthur

et al. 2021

IEEE Trans. Power Delivery

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Power cables are critical assets for the reliable operation of the grid. The cable lifetime is generally estimated from the conductor temperature and associated lifetime reduction. However, these tasks are intricate due to the complex physicsof-failure (PoF) degradation mechanism of the cable. This is further complicated with the different sources of uncertainty that affect the cable lifetime estimation. Generally, simplified or deterministic PoF models are adopted resulting in non-accurate decision-making under uncertainty. In contrast, the integration of uncertainties leads to a probabilistic decision-making process impacting directly on the flexibility to adopt decisions. Accordingly, this paper presents a novel cable lifetime estimation framework that connects data-driven probabilistic uncertainty models with PoF-based operation and degradation models through Bayesian state-estimation techniques. The framework estimates the cable health state and infers confidence intervals to aid decision-making under uncertainty. The proposed approach is validated with a case study with different configuration parameters and the effect of measurement errors on cable lifetime are evaluated with a sensitivity analysis. Results demonstrate that ambient temperature measurement errors influence more than load measurement errors, and the greater the cable conductor temperature the greater the influence of uncertainties on the lifetime estimate.

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Section: A Related Workmentioning

confidence: 99%

A Diagnostics Framework for Underground Power Cables Lifetime Estimation Under Uncertainty

Aizpurua

Stewart

McArthur

et al. 2021

IEEE Trans. Power Delivery

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“…For enabling travelling wave-based approaches, the use of power line communication (PLC) technology is an interesting alternative that has been recently considered [4]. Topics ranging from adjustments to power line modems (PLMs) for enabling network sensing [5] to machine learning-aided power line monitoring [6] have been investigated. Also, reflectometric [7] and transferometric [8] sensing of power lines have been given attention.…”

Section: Introductionmentioning

confidence: 99%

Orthogonal Chirp-Division Multiplexing for Power Line Sensing via Time-Domain Reflectometry

et al. 2021

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In this study, a time-domain reflectometry (TDR) system based on a baseband version of the orthogonal chirpdivision multiplexing (OCDM) scheme, which is relies on a modified discrete Fresnel transform (DFnT), is proposed for power line sensing. After a detailed description of the system model, a multiple access scheme that exploits the contolution theorem of the modified DFnT for enabling distributed reflectometric and transferometric sensing of the monitored power line. Considering typical European underground low-voltage and US overhead medium-voltage (MV) power distribution networks, range resolution and maximum unambiguous range for the measurements are assessed for the proposed scheme. Next, a comparison with multiple access schemes based on the Hermitian symmetric orthogonal frequency-division multiplexing (HS-OFDM) discussed in a previous work is performed considering a Brazilian MV overhead scenario, being the number of measurements obtained over time, as well as signal-to-interference-plusnoise ratio (SINR) used as performance metrics. The attained results show that the proposed multiple access scheme results in the same range resolution as the others. Also, the highest number of measurements over time is obtained by the proposed scheme, which produces orthogonality among signals transmitted by different power line modems (PLMs) neither and time nor frequency domains, but rather in the Fresnel domain. Meanwhile, although its yielded SINR values are fair among the PLMs consisting the distributed sensing system, the proposed scheme is slightly outperformed by the HS-OFDM based on code-division multiple access and by the HS-OFDM based on frequencydivision multiple access at some PLMs.Index Terms-Time-domain reflectometry, orthogonal chirpdivision multiplexing, multiple access, power line communication.

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“…In smart home networks, PLC modems with in-built couplers are attached to low voltage (LV) electric power outlets to facilitate data communication by providing broadband Internet access. The associated scalability, security and plug-and-play feature means PLC modems can also be deployed as sensor nodes for SG monitoring and cable diagnostics [4], [5]. However, to maximize the quality of service (QoS) in PLC networks, the main bottlenecks such as bursty impulsive noise, impedance mismatch, frequency selective multipath fading, and electromagnetic compatibility (EMC) issues need to be addressed.…”

Section: Introductionmentioning

confidence: 99%

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Ahiadormey

Anokye

Park

et al. 2020

IEEE Open J. Commun. Soc.

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In this paper, we study the application of cooperative non-orthogonal multiple access (NOMA) in power line communication (PLC) where two users exchange information using a two-way relay (TWR). Under the assumption of perfect and imperfect successive interference cancellation (SIC), we analyze key performance metrics for PLC log-normal channels impaired by impulsive noise. In particular, for delay-limited (DL) and delay-tolerant (DT) modes, approximate closed-form expressions are derived for the user outage probability and user ergodic rate. The analytic results are verified via Monte Carlo simulations. Compared with the conventional orthogonal multiple access (OMA) scheme, the simulation results show that our proposed NOMA TWR enhances the user outage probability and the user ergodic rate performance in the low signal-to-noise ratio (SNR) region. However, this gain diminishes as the imperfect SIC error increases and is non-existent beyond a certain level of imperfect SIC. Furthermore, the system performance is maximized by optimizing the power allocation coefficients where the system throughput and ergodic sum-rate of the NOMA TWR network in DL and DT operation, respectively, are shown to approach a ceiling in the presence of imperfect SIC. The energy efficiency (EE) of the proposed system is also analyzed for DL and DT modes.

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Cable Diagnostics With Power Line Modems for Smart Grid Monitoring

Cited by 38 publications

References 46 publications

A Diagnostics Framework for Underground Power Cables Lifetime Estimation Under Uncertainty

A Diagnostics Framework for Underground Power Cables Lifetime Estimation Under Uncertainty

Orthogonal Chirp-Division Multiplexing for Power Line Sensing via Time-Domain Reflectometry

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

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