webapp: show data for all 3-phases for HMT inverters in live view

[Copilot]

This pull request introduces support for displaying 3-phase (HMT) inverter data in the web application, enhancing both backend data handling and frontend display logic. The changes add new fields for 3-phase measurements, update the UI to show per-phase information when available, and improve type safety and flexibility in the codebase.

Backend: Support for 3-phase inverter data

• Added new fields for 3-phase voltage (Voltage Ph1-N, Voltage Ph2-N, Voltage Ph3-N) and current (Current Ph1, Current Ph2, Current Ph3) in both the backend response (addField logic) and the TypeScript types for inverter statistics. [1] [2]

Frontend: UI enhancements for 3-phase inverters

• Updated the main view (HomeView.vue) to detect 3-phase inverters and display individual phase data, including calculated per-phase power, in addition to the AC summary. Added utility methods isThreePhaseInverter and getPhaseDataWithPower to facilitate this. [1] [2]
• Improved the InverterChannelInfo component to optionally accept a phaseNumber prop, and updated the header rendering logic to display either the phase number or a generic "AC" label as appropriate. [1] [2] [3]

Type and prop improvements

• Changed the channelData prop in InverterChannelInfo.vue to accept a Partial<InverterStatistics>, allowing for flexible display of partial phase data.
• Updated imports and type usage in HomeView.vue to accommodate new and partial inverter statistics types.

[spcqike]

the preview only shows power for phase1. shouldn't it show a power for all three phases? or, if its distributed evenly, a dedicated "overall" row?

[github-actions]

Build Artifacts

Firmware built from this pull request's code:

• opendtu-onbattery-generic_esp32_4mb_no_ota.zip
• opendtu-onbattery-generic_esp32s3_usb.zip
• opendtu-onbattery-generic_esp32_8mb.zip
• opendtu-onbattery-generic_esp32s3.zip

Notice

• These artifacts are ZIP files containing the factory update binary as well as the OTA update binary.
  Extract the binaries from the ZIP files first. Do not use the ZIP files themselves to perform an update.
• These links point to artifacts of the latest successful build run.
• The linked artifacts were built from 37c053b.

[vaterlangen]

Phase 1 shows the overall power and Phase2+3 are missing the power values. Guess we should add either an "Overall/AC" card for AC values related to all phases or add overall AC-power to the "General" card

[spcqike]

As third option you could also calculate power per phase, as you already have voltage and current.

[vaterlangen]

As third option you could also calculate power per phase, as you already have voltage and current.

Yes, definitely. Power per phase AND Overall power (as this is the relevant measurement value for DPL)

[Copilot]

Pull Request Overview

This PR enhances the inverter display interface to properly support both single-phase and 3-phase (HMT) inverters. The key improvement is showing AC summary data for all inverters while additionally displaying individual phase data for 3-phase systems.

Key changes:

• Added automatic detection of 3-phase vs single-phase inverters
• Enhanced AC display logic to show combined AC data plus individual phase sections for 3-phase inverters
• Extended backend API to include HMT-specific 3-phase voltage and current fields

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
webapp/src/views/HomeView.vue	Added 3-phase detection logic, phase data extraction methods, and enhanced AC rendering template
webapp/src/types/LiveDataStatus.ts	Extended InverterStatistics interface with 3-phase voltage and current field definitions
webapp/src/locales/en.json	Added "AC" translation for cleaner single-phase inverter labels
webapp/src/components/InverterChannelInfo.vue	Enhanced component to handle phase-specific labeling and optional phase numbers
src/WebApi_ws_live.cpp	Added HMT-specific 3-phase field support to backend JSON output

[AndreasBoehm]

@vaterlangen @Saarblick @kthemall

Please give the test version a try and let me know if it looks as expected. I don't have a HMT inverter myself and can't try it.

#2195 (comment)

[vaterlangen]

@AndreasBoehm Phase Values seem to be correct.
In AC card, current and voltage are misleading. Phase-to-Earth voltages and phase currents are duplicated. IMHO, Instead of Phase-to-earth voltages phase-to-phase voltages would be more meaningful.

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