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Reference Number	NIA_NGET0166
Title	VSC-HVDC Model Validation and Improvement (iCASE)
Status	Completed
Energy Categories	Other Power and Storage Technologies(Electricity transmission and distribution) 100%;
Research Types	Applied Research and Development 100%
Science and Technology Fields	ENGINEERING AND TECHNOLOGY (Electrical and Electronic Engineering) 100%
UKERC Cross Cutting Characterisation	Not Cross-cutting 100%
Principal Investigator	Project Contact No email address given National Grid Electricity Transmission
Award Type	Network Innovation Allowance
Funding Source	Ofgem
Start Date	01 September 2015
End Date	01 September 2019
Duration	48 months
Total Grant Value	£230,670
Industrial Sectors	Power
Region	London
Programme	Network Innovation Allowance
Investigators	Principal Investigator	Project Contact , National Grid Electricity Transmission (100.000%)
Web Site	http://www.smarternetworks.org/project/NIA_NGET0166
Objectives	The project objectives are twofold: Construction of a highly reduced scale Modular Multi-Level Converter (MMC) VSC-HVDC converter Comparison of hardware vs. software models to assess the impact of telecommunications, internal voltage control loops and measurement on necessary model fidelity The project team anticipate one of the two potential outcomes: An updated model for both Detailed Equivalent Model (DEM) and Average Value Model (AVM) models (see Cigre brochure 604, “Guide for the Development of Models for HVDC Converters in a HVDC Grid” B4-57 working group). ORAn assessment that present DEM and AVM models are sufficient and telecommunications/ measurement / internal loops have negligible impact on the model.
Abstract	Present modelling of the impact of Voltage Source Converters for High Voltage Direct Current transmission (VSC-HVDC) are idealised and do not account for the physical environment in which the equipment is operating. For example they use simplified representations of the converter which do not take into account the effect of telecommunications, some of the internal control loops for the output voltage control and measurement delays from the many sub-modules in 4th generation converters. The suitability of existing models need to be verified and possible solutions/model updates identified to de-risk future and reduce costs in future VSC-HVDC deployment and operation and in the AC equipment it is connected to. A reduced scale hardware model will be built in the laboratory in order to test the software simulations under conditions more closely resembling an operational environment. The hardware model will incorporate signalling, control hardware and measurement delays. The outcomes will be evaluated and used to assess the impact of full scale VSC-HVDC converters on operation of the transmission system.Note : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above
Publications	(none)
Final Report	(none)
Added to Database	17/12/18