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REFERENCE PROJECT
WPD - Cornwall
 

Thermal and Voltage Constraint Management

Constraint Manager

Core

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Project  Title : Cornwall ANM

Connecting DERs to SCADA / ANM
Thermal Constraint Management
Voltage Constraint Management

 
Main System Functions

ANM - Level 3 / SCADA

ANM - Level 1 Controller

DER- Windfarm

User Case : DER Management

Year : 2015

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Network Data
 
Generators - 103
Busbars - 900
Circuits - 830
Circuit Breakers - 1320
Transformers - 220

 

Project Statistics

 Includes 3 GSPs (400 to 132kV) which have 9 Supergrid Transformers in total, each 240MVA

Max Demand = 1440 MW (Typically)

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Notable Features

Primary Benefits

Primary Project Features

First Realtime Loadflow in United Kingdom

Largest ANM System in Europe

Wind and Solar DER Types

Primary System Benefits

Accelerated DER Connections

Reduced Reinforcement Costs

Network violations eliminated

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

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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-lead constraints, and as such will respond appropriately to all types of DERs, including energy storage.

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Voltage Constraint Manager
 

Main Functionality :

Real time monitoring and management of voltage levels provides curtailment of DERs when voltage levels exceed user defined limits. Voltage control can be performed alongside thermal constraint management and the same levels of optimisation and PoA can be applied to the DERs. Limits can be user defined or determined by a Constraint Manager module.

Project Process Flow

Thermal and Voltage

DER

SCADA / DMS System

Realtime

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