{"schemaVersion":1,"slug":"microgrid-storage-discharge-power-limit-interface","name":"Microgrid storage discharge-power limit interface","kind":"symbol","abbreviation":"MSDLI","aliases":["Microgrid storage coordination interfaces","microgrids Microgrid storage coordination interfaces","microgrids","Microgrids","Storage discharge limit","Permitted discharge capability"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Receives the declared maximum permitted discharge power for the assigned storage resource.","description":["Receives the declared maximum permitted discharge power for the assigned storage resource. Storage coordination combines the battery's energy limits with the converter's electrical capability and the microgrid's operating demand. State of charge, allowable power and connection status describe different aspects of availability.","In a microgrid with a battery energy storage system, the controller can request discharge to support a power deficit while the battery management and conversion systems enforce their own operating limits. For this reference, the drawing identifies “Storage discharge limit” at the input and “Permitted discharge capability” at the output. Energy availability is a separate constraint.","Show which system declares each limit and which controller receives the target. Battery protection, converter capability, thermal management and emergency responses remain with the selected system design. 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: Storage discharge limit. Identify its source device or document and the state represented on the drawing.","Follow the named output: Permitted discharge capability. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Energy availability is a separate constraint.","Show which system declares each limit and which controller receives the target. Battery protection, converter capability, thermal management and emergency responses remain with the selected system design."],"drawingChecklist":["Label the source and connection reference for storage discharge limit.","Identify the destination and defined state of permitted discharge capability.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Energy availability is a separate constraint."],"distinction":"Energy availability is a separate constraint. 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":"Storage discharge limit"},{"label":"Output / connection","value":"Permitted discharge capability"},{"label":"Lookup label","value":"MSDLI is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-mg-study","relevance":"Public technical context for microgrid storage coordination interfaces. Storage, protection, black start, load restoration and coordinated island operation. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["battery-energy-storage-system","battery-power-conversion-system","microgrid-storage-state-of-charge-availability"],"artwork":"pi26-microgrid-storage-discharge-power-limit-interface","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-storage","input":"Storage discharge limit","output":"Permitted discharge capability"},"plainEnglish":{"title":"What this block does","introduction":"Receives the declared maximum permitted discharge power for the assigned storage resource.","example":"In a microgrid with a battery energy storage system, the controller can request discharge to support a power deficit while the battery management and conversion systems enforce their own operating limits. For this reference, the drawing identifies “Storage discharge limit” at the input and “Permitted discharge capability” at the output. Energy availability is a separate constraint.","drawings":"Start at the named input: Storage discharge limit. Identify its source device or document and the state represented on the drawing. Follow the named output: Permitted discharge capability. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Storage discharge limit"},{"name":"Output","meaning":"Permitted discharge capability"},{"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":["Storage discharge limit","MSDLI","Permitted discharge capability"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Avista Shared Energy Economy microgrid protection and control case study","url":"https://selinc.com/api/download/135486/"}],"profileId":"power-installation-microgrid-storage"},"url":"https://eloragrid.ai/symbols/microgrid-storage-discharge-power-limit-interface","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-storage-discharge-power-limit-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-mg-study","publisher":"SEL","title":"Avista Shared Energy Economy microgrid protection and control case study","url":"https://selinc.com/api/download/135486/","scope":"Storage, protection, black start, load restoration and coordinated island operation.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for microgrid storage coordination interfaces. Storage, protection, black start, load restoration and coordinated island operation. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}