48V-Akku zur Grundlastabdeckung - Einbindung/Hardware?

[Stevie_AN]

Scheinbar ist es doch nicht so einfach. Ich hab das im Node Red jetzt mal folgender Maßen gebastelt:

Und in der Funktion dann immer den Wert "m" mit addiert.

2023-01-06_11h10_59.png (9.38 KiB) 1293 mal betrachtet

Ich kann dem einspeisenden WR jedoch immer nur 0 - 300W vorgeben. Und aktuell schickt er ja immer viel mehr (also x+m) raus.

2023-01-06_11h10_09.png (9.62 KiB) 1293 mal betrachtet

Doch komplizierter, als ich dachte.

Hier mal der Flow, wie es aktuell aussieht. Der Send an den HM-300 stimmt noch nicht, der ist noch nicht da.

Code: Alles auswählen

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[Gero]

nodeRED hat die Eigenart, dass man sich Werte aus dem letzten Durchlauf des Flows nicht in den einzelnen Nodes des Flows merken kann. Dafür muss man in Variablen schreiben, die für den ganzen Flow oder gar ganz global gelten.

Die beiden oberen Inject-Nodes setzen eine Variable, die in dem unteren Flow abgefragt wird.

Code: Alles auswählen

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[Gero]

Ich hab' das mal unter Auslassung des Dashboards fertig gestellt. Vielleicht passt's ja so.

Die drei unteren Inject-Nodes inititialisieren flow-globale Variablen: Einmal die 300, die 800 und die letzte WR-Einspeiseleistung. Darüber für's debuggen die Abfrage dieses Werts und ganz am Anfang Deine Logik, ein wenig angepasst.

Code: Alles auswählen

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WR-Leistung\nif (m > w){\n    msg.payload = w; \n}\n\n\n// Überlast ohne WR\n\nif ( m > g ){\n    msg.payload = 0;\n}\nflow.set(\"letzter\", msg.payload); \nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":500,"y":340,"wires":[["dbc25041.070998"]]},{"id":"37734c32.6c474c","type":"debug","z":"82119491.05bc9","name":"an_WR","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":940,"y":340,"wires":[]},{"id":"dbc25041.070998","type":"delay","z":"82119491.05bc9","name":"","pauseType":"rate","timeout":"60","timeoutUnits":"seconds","rate":"1","nbRateUnits":"60","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"outputs":1,"x":730,"y":340,"wires":[["37734c32.6c474c"]]},{"id":"ada02d11.0493a","type":"function","z":"82119491.05bc9","name":"","func":"m = msg.payload;\nvar w = flow.get(\"max_w\");\nvar g = flow.get(\"grenze\");\n\nif (m > w){\n    msg.payload = w;\n}\nelse{\n    msg.payload = m;\n}\nif ((m > g) || (m < 0)){\n    msg.payload = 0;\n}\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":520,"y":160,"wires":[["ec9f70b38fb4f6f2"]]},{"id":"b6c1ea50c81e25eb","type":"debug","z":"82119491.05bc9","name":"EVU","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":930,"y":240,"wires":[]},{"id":"ec9f70b38fb4f6f2","type":"debug","z":"82119491.05bc9","name":"Einspeisung","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":950,"y":160,"wires":[]},{"id":"581d063bb4a047c8","type":"change","z":"82119491.05bc9","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":310,"y":240,"wires":[["b6c1ea50c81e25eb","ada02d11.0493a","c46b2a4f.08f8d"]]},{"id":"3e7c0df831dc0adc","type":"inject","z":"82119491.05bc9","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"110","payloadType":"num","x":90,"y":240,"wires":[["581d063bb4a047c8"]]},{"id":"9f5fc50c2772e954","type":"inject","z":"82119491.05bc9","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"350","payloadType":"num","x":90,"y":160,"wires":[["581d063bb4a047c8"]]},{"id":"58514faaf10890b7","type":"inject","z":"82119491.05bc9","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"-80","payloadType":"num","x":90,"y":320,"wires":[["581d063bb4a047c8"]]},{"id":"dd96b6272ff2622f","type":"inject","z":"82119491.05bc9","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"850","payloadType":"num","x":90,"y":80,"wires":[["581d063bb4a047c8"]]},{"id":"5773237007cacee3","type":"inject","z":"82119491.05bc9","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"300","payloadType":"num","x":110,"y":540,"wires":[["757c367ba212f169"]]},{"id":"757c367ba212f169","type":"change","z":"82119491.05bc9","name":"","rules":[{"t":"set","p":"max_w","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":320,"y":540,"wires":[[]]},{"id":"75132375f9ca3d34","type":"inject","z":"82119491.05bc9","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":150,"y":440,"wires":[["73e66b03710dabcf"]]},{"id":"78d195d74e57a14b","type":"debug","z":"82119491.05bc9","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":610,"y":440,"wires":[]},{"id":"73e66b03710dabcf","type":"function","z":"82119491.05bc9","name":"","func":"msg.payload = flow.get(\"letzter\");\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":350,"y":440,"wires":[["78d195d74e57a14b"]]},{"id":"3f70473546677c25","type":"inject","z":"82119491.05bc9","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"800","payloadType":"num","x":110,"y":580,"wires":[["47e7a9489d46447a"]]},{"id":"47e7a9489d46447a","type":"change","z":"82119491.05bc9","name":"","rules":[{"t":"set","p":"grenze","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":320,"y":580,"wires":[[]]},{"id":"0cd290f2d1be3eff","type":"inject","z":"82119491.05bc9","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"0","payloadType":"num","x":110,"y":500,"wires":[["9fa8b7c0e588d5c0"]]},{"id":"9fa8b7c0e588d5c0","type":"change","z":"82119491.05bc9","name":"","rules":[{"t":"set","p":"letzter","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":320,"y":500,"wires":[[]]}]

[Stevie_AN]

Wow...! DANKE

Das sieht extrem vielversprechend aus und hätte ich definitiv nicht hinbekommen.

Nun muss nur noch der Microinverter und die Hardware für die OpenDTU ankommen und dann geht es an die nächste Hürde: Den Wert per MQTT oder Modbus an die OpenDTU schicken, so dass der Hoymiles HM-300 die Drosselung auch entsprechend ausführt.

Bin extrem gespannt. Hoffentlich klappt das alles so, wie ich mir das vorstelle.

Danke, Gero!

Grüße und einen schönen Sonntag noch...