{"schemaVersion":1,"slug":"microgrid-pv-source-loss-detection-interface","name":"Microgrid PV source-loss detection interface","kind":"symbol","abbreviation":"MPSDI","aliases":["Microgrid renewable-generation interfaces","microgrids Microgrid renewable-generation interfaces","microgrids","Microgrids","PV connection and power status","PV unavailable indication"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Reports the defined loss of the assigned PV resource to the power-balancing controller.","description":["Reports the defined loss of the assigned PV resource to the power-balancing controller. Renewable-generation coordination connects variable resource availability, inverter operating limits and the microgrid power target. Available solar or wind power, an issued curtailment request and actual delivered power are different signals.","In a microgrid with solar generation, the controller can restrain inverter output when local load and storage cannot absorb the available power. The resource controller reports its own availability and accepted operating limits. For this reference, the drawing identifies “PV connection and power status” at the input and “PV unavailable indication” at the output. Low irradiance and disconnected equipment differ.","Identify the point where power is measured and the system declaring each availability or limit signal. Resource forecasts and controller requests do not guarantee the delivered generation at every instant. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation."],"readingNotes":["Start at the named input: PV connection and power status. Identify its source device or document and the state represented on the drawing.","Follow the named output: PV unavailable indication. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Low irradiance and disconnected equipment differ.","Identify the point where power is measured and the system declaring each availability or limit signal. Resource forecasts and controller requests do not guarantee the delivered generation at every instant."],"drawingChecklist":["Label the source and connection reference for pv connection and power status.","Identify the destination and defined state of pv unavailable indication.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Low irradiance and disconnected equipment differ."],"distinction":"Low irradiance and disconnected equipment differ. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.","facts":[{"label":"Representation","value":"Functional block"},{"label":"Installation focus","value":"Microgrids"},{"label":"Input / boundary","value":"PV connection and power status"},{"label":"Output / connection","value":"PV unavailable indication"},{"label":"Lookup label","value":"MPSDI is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-pv-control","relevance":"Public technical context for microgrid renewable-generation interfaces. Renewable generation dispatch and microgrid source coordination. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["pv-string-inverter","photovoltaic-string-combiner","microgrid-pv-inverter-common-fault-input"],"artwork":"pi26-microgrid-pv-source-loss-detection-interface","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-renewables","input":"PV connection and power status","output":"PV unavailable indication"},"plainEnglish":{"title":"What this block does","introduction":"Reports the defined loss of the assigned PV resource to the power-balancing controller.","example":"In a microgrid with solar generation, the controller can restrain inverter output when local load and storage cannot absorb the available power. The resource controller reports its own availability and accepted operating limits. For this reference, the drawing identifies “PV connection and power status” at the input and “PV unavailable indication” at the output. Low irradiance and disconnected equipment differ.","drawings":"Start at the named input: PV connection and power status. Identify its source device or document and the state represented on the drawing. Follow the named output: PV unavailable indication. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"PV connection and power status"},{"name":"Output","meaning":"PV unavailable indication"},{"name":"Application reference","meaning":"An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections."}],"diagram":"flow","steps":["PV connection and power status","MPSDI","PV unavailable indication"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Microgrid processing and control functions","url":"https://productinfo.se.com/esxp_digital_apps_iec/mg/English/BM_ESXP_DG_Microgrid_IEC_0001122076.xml/%24/ESXP_DG_MG_SD_Processing_0001125595"}],"profileId":"power-installation-microgrid-renewables"},"url":"https://eloragrid.ai/symbols/microgrid-pv-source-loss-detection-interface","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-pv-source-loss-detection-interface.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-pv-control","publisher":"Schneider Electric","title":"Microgrid processing and control functions","url":"https://productinfo.se.com/esxp_digital_apps_iec/mg/English/BM_ESXP_DG_Microgrid_IEC_0001122076.xml/%24/ESXP_DG_MG_SD_Processing_0001125595","scope":"Renewable generation dispatch and microgrid source coordination.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for microgrid renewable-generation interfaces. Renewable generation dispatch and microgrid source coordination. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}