Detection and control of inter-area oscillations (DACIAO)

Reference: NIA_NGET0161

Status: Complete

Start Date: Oct 2015

End Date: Oct 2018

Funding Licencee(s): National Grid Electricity System Operator and National Grid Electricity Transmission

Contact: Ben Marshall

Funding Mechanism Network Innovation Allowance

Research Area: None

Core Technology(ies): High Voltage Technology, Harmonics, Measurement and Electricity Transmission Networks

Estimated Expenditure: £300,000.00

Introduction: It is proposed that the project follows the stages of investigation listed below:

WP1.1. Scoping and Literature review.
WP1.2 Identification of Modal behaviours Utilising Phasor Measurement Units (PMUs)
WP1.3 characterising the Modal behaviours and overall control space.
WP2.1 Application of analysis techniques to detect the risk of onset of inter-area modes.
WP2.2 Development & prototyping of an analysis tool to detect the risk of onset of inter-area modes
WP 3.1 Control system design & review.
WP 3.2 Assessment of possible control system approaches.
WP 3.3 Identification of those techniques to be applied to the GB transmission system to enable the specification/identification of the right control approaches.

Objectives:

The intended outputs of this project would be:-

Improved understanding of inter-area mode phenomena
Development of a method and analysis package capable of identification of existing low magnitude inter-area modes and providing early warning of the onset of their severity
Appraisal and assessment of control options and the methodologies surrounding their application on the GB transmission system.

Expected Benefits:

The detection method identifies oscillatory events that are currently observed
The analysis approach is able to highlight the risk of any inter-area modes developing
The control strategy (or strategies) can be demonstrated to have the capability to successfully limit the observed oscillations and approaches to responding flexibly to new modes/ optimally setting the control system at the design side are identified.