---
title: Impact of time-varying angular frequency on the separation of instantaneous power components
description: When grid frequency drifts, the textbook active/reactive split of instantaneous power misattributes oscillatory terms. Keeps the decomposition coherent under a time-varying angular frequency, with stand-alone power-system field data as the validation case.
---

<https://helpdesk.arpuro.io/arpuro-labs-as-blog>

# [Impact of time-varying angular frequency on the separation of instantaneous power components](https://helpdesk.arpuro.io/arpuro-labs-as-blog/time-varying-frequency-power-components-2017)

 Written by  | Jun 28, 2017, 12:00:00 AM

[View full post](https://helpdesk.arpuro.io/arpuro-labs-as-blog/time-varying-frequency-power-components-2017)

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