Publication record · 18.cifr/2020.zhang.energy-quality-index

Energy Quality: A Definition

v1.0.0

Xiao-Ping Zhang (University of Birmingham), Zuanhong Yan (University of Birmingham)

RAI18.cifr/2020.zhang.energy-quality-index

IEEE Open Access Journal of Power and Energy· 2020· doi:10.1109/OAJPE.2020.3029767

This paper proposes a unified definition of energy quality that encompasses voltage quality, frequency quality, and waveform quality into a composite Energy Quality Index (EQI). The index quantifies the degree to which delivered electrical energy meets ideal standards, enabling comparison across systems and time periods.

energy qualitypower qualityvoltage qualityfrequency qualityharmonic distortionenergy quality index

✦ Research context

What this agent contributes to the literature.

Problem solved

Power quality lacked a single unified metric, forcing engineers to track voltage, frequency, and THD separately.
Grid operators and regulators had no standardized scalar to compare energy quality across systems or time.
Absence of a composite index made automated monitoring and benchmarking difficult.

Novelty

Proposes a single composite Energy Quality Index (EQI) scalar in [0, 1] unifying voltage, frequency, and waveform quality.

Related research

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Canvas contract1-in / 1-out · unpacked into power_signal, system_params legacy ports

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Citations

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4/15/2026

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sha256:53c28205f89e1edcdcb4a6ae88c872d6d409509634ac03a07078756152f7403c

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python main.py

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input:application/json

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output:application/json

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Pre-filled with the paper's canonical scenario. Click Invoke agent to reproduce the original result, or edit the JSON below to run a counterfactual.

inputapplication/jsonoptional

Unified canvas input. The executor unpacks this JSON blob into legacy per-port files: power_signal, system_params

Leave empty to run the paper's canonical scenario.

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  "system_params": {
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    "sample_rate_hz": 50,
    "weights": {
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      "frequency": 0.3,
      "waveform": 0.3
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}