CIM Issues #7119
Model energy resource capabilities for Grid and Market resources
IEC 61970-301
Description
Grid analyses and Market processes both need information on the ratings and control capabilities of energy resources.
This redmine issue is a placeholder for presentations and discussions on the topic
CIM17 already has IEEE1547xxx models in Dynamics and DERFunction, DERMonitorableParameter to support IEC 61968-5 but these are not suitable as-is.
Two approaches have been proposed to provide a more generic model:
1) For grid analyses, WG13 has already adopted the function block models proposed by the CIM-61850 Harmonization (IEC 62361-102) work.
This needs extension to specify built-in function blocks with the relevant parameters that can be used with energy resources such as PowerElectronicsConnection (proposed IEC 62361-105)
2) For market processes, new Asset, AssetInfo classes have been proposed to describe control capabilities. These would be used with the existing Asset-PowerSystemResource association.
Files
| CIM_DataModels_forDER_20250108A.pdf | View CIM_DataModels_forDER_20250108A.pdf | 2.05 MB | CIM UML Features Proposal group 8 January 2024 | ||
| CIM_DataModels_forDER_20250129A.pptx | CIM_DataModels_forDER_20250129A.pptx | 1.88 MB | Presentation to UCA TF13 29 January 2024 |
Updated by Tom Berry 6 days ago
Presentation to CIM UML Features Proposal group 8 January 2024
CIM_DataModels_forDER_20250108A.pdf
CIM models for capabilities of Grid Edge Devices and EV as DERs
Context: two groups have a need for CIM models to describe resource nameplate and control capability
TC 69 JWG 15 : Design the information modelling for information exchange with EV charging management systems
TC 57 WG 21 : resource modelling for generic Grid Edge Devices for flexibility services
Various standards address information exchange with remote device, but these do not have CIM equivalents
IEEE 1547, IEEE 2030.5, IEC 61850 models defined in part 7-420, mappings to IEEE 1815.2, Modbus (Sunspec alliance)
The presentation describes existing models
- Historical : IEC 61968-5 Metering package EndDeviceGroup class to manage groups of EndDevices. Smart Inverters in the DER context, are considered types of EndDevices
- Specialized : IEC 61970-302 IEEE1547Dynamics package for dynamics analysis of one or a few DER
- Proposed : Asset - with reference to an Asset Type based on make, model version
- To harmonize & extend : IEC 62746-4 RegisteredDistributedResource and IEC 61970-301 Conducting Equipment – part of wires model for network analysis
The modelling challenge is
a. define a set of classes to hold the parameters for each function
Usable for all use cases
analysis (WG13)
operation scheduling (WG21)
real-time exchanges (WG14 - replace IEC 61968-5)
b. Define a CIM style naming convention for the attributes, with mapping to existing protocols
Updated by Tom Berry 6 days ago
Presentation to UCA TF13 29 January 2024
CIM_DataModels_forDER_20250129A
CIM models for capabilities of Grid Edge Devices and EV as DERs
Proposes some principles and examples for modelling
Principles:
Assets, AssetInfo – used to initialize Grid, Market resource models
Implies similar, maybe identical classes associated to Asset or PowerSystemResource
Market and Grid resources are different views => add an explicit association
Market:RegisteredDistributedResource <--> Grid:{PowerElectronicsConnection + n*PowerElectronicsUnit}
Grid resource modelling can re-use RegisteredResource aggregation
Grid and Market views could / should share same model of control capabilities
Noting:
IEC 62746-4 models partially supersede DERGroup from IEC 61968-5.
Information from IEC 61968-5 DERFunction, DERMonitorableParameter could be modelled in more generic ways
Resource associations with Measurements and Meters are a way to record mappings to the real-time communication systems & protocols.
Other mappings like IEC 61850 and IEEE 2030.5 may need new classes