UC-11
Red light grid management using automated control of distributed DER
1. Description of the Use Case
1.1. Name of the Use Case
| ID | Area /Domain(s)/Zone(s) | Name of the Use Case |
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| 1 | / DER, Distribution /operation, | UC-11 |
1.2. Version Management
| Version No. | Date | Name of author(s) | Changes | Approval status |
|---|
| 1 | 2020-11-15T00:00:00 | AEM, CERTH, | N/A | Final v1 |
1.3. Scope and Objectives of Use Case
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| Scope | Defines the main DSOs standards and actions to ensure a safe and reliable grid management when grid is in red state |
| Objective(s) | To properly adjust power consumption/production by triggering the utilization of the available flexibility loads without market involvement when grid is in red (emergency) state |
| Related business case(s) | Related to UC-7 "Ancillary services provision by STATCOM to TSO for overlay network stability" |
1.4. Narrative of Use Case
Short description
DSO continously monitors the grid network condition and if an emergency (red state) situation is detected, aggregated flexibility from prosumers is activated based on bilateral contracts.
Complete description
DSO continously monitors voltage level and maximum load at each MV/LV line and transformer. If certain thresholds according to EN 50160 are reached (under/over-voltage), the grid network enters the red state and the flexibility loads available in the area on the same LV line will be used. In particular, activation of flexibility will be requested, either directly or through the aggregator on the basis of bilateral contracts, in order to stabilize the network. Local Electricity Market operations are paused (P2P trading, trading to external markets) until the issues have been resolved.
| ID | Name | Description | Reference to mentioned use case objectives |
|---|
| 1 | Network instability resolved on time | All the monitored parameters are within the acceptable thresholds defined by EN 50160 | None, |
1.6. Use case conditions
| Relation to other use cases |
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| Level of depth |
| Prioritisation |
| Mandatory (High priority) |
| Generic, regional or national relation |
| Generic |
| Nature of the use cases |
| Technical |
| Further keywords for classification |
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2. Diagrams of Use Case
3. Technical Details
3.1. Actors
| Actor Name | Actor Type | Actor Description | Further information specific to this Use Case |
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| DSO | System operator | None | |
| Aggregator | Resource aggregator | None | |
3.2. References
| No. | References Type | Reference | Status | Impact on Use Case | Organistaor / Organisation | Link |
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4. Step by Step Analysis of Use Case
4.1. Overview of Scenarios
| No. | Scenario Name | Scenario Description | Primary Actor | Triggering Event | Pre-Condition | Post-Condition |
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Notes
4.2. Steps – Scenarios
| Information exchanged ID | Name of Information | Description of Information Exchanged | Requirement |
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6. Requirements (optional)
| Category Identifier | Name | Description | mRID |
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| Req_ID | Req_Name | ‘Red light grid management using automated control of distributed DER’ | |
| Identifier | Name | Description | mRID |
|---|
7. Common Terms and Definitions
| Key | Value | Refers to Section |
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