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I have just reconfigured my Tibber Pulse to publish to my own MQTT server, and started using the amshan integration in HA.
When I accessed the data from the Pulse via the HA Tibber integration, I also had access to the power factor (aka cos(ϕ)), but that value is not reported by the amshan integration. The power factor is useful e.g. in order to estimate the L2 current, which is not reported by the Aidon.
From the sensors I have available, it seems the power factor can be calculated as math.cos(math.atan( sensor.aidon_reactive_power_export / sensor.aidon_active_power_import )) (if there's only resistive load, the factor should be 1.0).
I'm not an electrician, so I don't understand why the nominator would be export while the denominator would be import. But the sensor.aidon_reactive_power_import is just 0.
If the calculation of the power factor is correct, maybe it could be made available as a sensor as well?
The text was updated successfully, but these errors were encountered:
So the sensor aidon_reactive_power_export is actually Q-, which is not necessarily export. Whether it is import or export depends on the sign of P. (negative P - > Q3 -> export, positive P -> Q4 -> import).
Hei! Litt forenklet hva Q-faktoren betyr:
P-faktoren er den aktive effekten som vi "betaler" for. Q-faktoren er den reaktive effekten som oppstår hvis anlegget har laster som spoler eller kondensatorer. Q-faktoren er positiv hvis anlegget er "spole" dominert (mest vanlig), eller negativ hvis det er "kondensator" dominert.
Nettleverandøren kan i noen sjeldne tilfeller ta betalt for denne effekten, men jeg i farten husker jeg ikke når dette trigges.
Funfact: Et anlegg vil sjelden ha en cos(fi)-faktor som er 1! Den vil for et hus være i området 0,85 til 1.
Hva brukes dette til? Nettleverandøren ønsker jo tilnærmet faktor 1. Da S=U*I, hvor S er Hypotenusen til P-katet og Q-katet, kalles S for tilsynelatende effekt. Alt som har med spenningstap og "unyttig" effekt som nettleverandøren ikke får betalt for knyttes til strømmen (I). Tenk at hvor mindre cos(fi) er, jo mer tap blir det for nettleverandøren.
For folk-flest betyr det ikke så mye der og da, vi får regningen allikevel ved at "nettleien" økes jevnt og trutt.
Derfor kan det jo bety noe at cos(fi) bør gå mot 1.
Hva kan vi som kunder gjøre for å avhjelpe situasjonen? Det er kun når nettleverandøren begynner å ta betalt for dette at det bør gjøres tiltak. Det kan gjøres fasekompenserende tiltak, men dette er ikke for folk flest.
Lystoff armaturer hadde faskompenserende tiltak: Det ble lagt inn en kondensator parallelt med lasten til armaturet. Det var en del av armaturen. Det var for å kompenserer spolen(drodselen) som var i armaturen.
I have just reconfigured my Tibber Pulse to publish to my own MQTT server, and started using the amshan integration in HA.
When I accessed the data from the Pulse via the HA Tibber integration, I also had access to the power factor (aka cos(ϕ)), but that value is not reported by the amshan integration. The power factor is useful e.g. in order to estimate the L2 current, which is not reported by the Aidon.
From the sensors I have available, it seems the power factor can be calculated as
math.cos(math.atan( sensor.aidon_reactive_power_export / sensor.aidon_active_power_import ))
(if there's only resistive load, the factor should be 1.0).I'm not an electrician, so I don't understand why the nominator would be export while the denominator would be import. But the
sensor.aidon_reactive_power_import
is just 0.If the calculation of the power factor is correct, maybe it could be made available as a sensor as well?
The text was updated successfully, but these errors were encountered: