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REFERENCE PROJECT
SSEN - Shetland

Thermal and Voltage Constraint Management

Constraint Manager

Core

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Project  Title : Shetland

Connecting DERs to SCADA / ANM
Thermal Constraint Management
Microgrid Control upgrade
Management of Minimum demand on critical demand point
Main System Functions

ANM - Level 3 / SCADA

ANM - Level 1 Controller

DER- Windfarm

User Case : Thermal Constraint Management on a Microgrid

Year : 2021 (upgraded)

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Network Data
 
Generators - 28
Busbars - 84

Circuits - 69
Transformers - 30

 

Project Statistics

 Includes 1 islanded GSPs (11kv - 33kv) 

Future connection to mainland with VPP control

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Notable Features

Primary Benefits

Primary Project Features

Islanded network

Remote management from Level 3 

Management of a critical demand 

Ready for integration to mainland grid with VPP

Primary System Benefits

Improved stability and control

Network development plan for integration

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Energy Market

Transmission

Distribution

DER

Consumer

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Level 4 - Enterprise

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Level 3 - Control Centre

Level 2 - Substation

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RTU

SCADA

ANM

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Level 1 - Field

Micro

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L1

DER 

L-1

DER 

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Modules Included in the Project

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Thermal Constraint Manager
 

Main Functionality :

This module monitors for thermal and voltage violations in realtime. On detection of one or more network violations, DERs contributing to the violations are curtailed in order to resolve the problem. DERs can be constrained based upon user-defined Principles of Access (POAs). The ANM module can respond to both demand-led and generation-led constraints, and as such will respond appropriately to all types of DERs, including energy storage.

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Microgrid Controller
 

Main Functionality :

This module monitors for thermal and voltage violations in realtime. On detection of one or more network violations, DERs contributing to the violations are curtailed in order to resolve the problem. DERs can be constrained based upon user-defined Principles of Access (POAs). The ANM module can respond to both demand-led and generation-led constraints, and as such will respond appropriately to all types of DERs, including energy storage.

Project Process Flow

Thermal and Voltage

Microgrid

DER

SCADA / DMS System

Realtime

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