The National HVDC Centre is part of Scottish Hydro Electric Transmission, working together with Scottish Power Transmission, National Grid Electricity Transmission, and the Electricity System Operator.
The Centre is a testing facility that hosts detailed models (and control/protection hardware) from multiple suppliers and from TOs/ESO; and has the expertise (and technology infrastructure) to undertake specialist studies; to support the deployment of HVDC projects and mitigate any associated risks to the reliable operation, control and resilience of the GB network.
Our Hardware Capabilities
Our key hardware capabilities at the Centre comprises: RTDS System, Multi-Terminal Replicas, Protection Relays, Amplifiers, GPS Clocks, Communications Emulator and an IED.
The Centre has significant real-time digital simulation (RTDS) capabilities (with 7 x RTDS NovaCors, 3 x PB5 racks,18 FPGA units, and a wide range of input/output interfaces); provided by RTDS Technologies. This system enables large sections of the AC network together with HVDC schemes to be simulated in real-time, and connected to hardware devices, to perform detailed tests.
For more information: www.rtds.com
Multi-Terminal HVDC Replicas
The Centre hosts replicas of the control and protections system of the Caithness-Moray-Shetland (CMS) scheme, the first multi-terminal scheme in Europe. These are replicas of the same control system installed in the converter stations; which enable us to perform detailed studies of the performance of the system.
For more information: www.hvdccentre.com/our-projects/caithness-moray/
Wide Range of Protection Relays
The HVDC Centre hosts a range of protection relays to undertake protection coordination and protection implementation verification studies. The relays are connected to the RTDS system using the OMICRON and Doble amplifiers.
Voltage and Current Amplifiers
The HVDC Centre has four voltage and current amplifier from renowned manufacturers namely, Omicron and Doble. These amplifiers are used to connect critical high burden equipment to the RTDS system.
For more information: www.omicronenergy.com/en/products/cms-356/ and: www.doble.com/product/external-amplifiers/
The HVDC Centre has a GPS clock (from General Electric). This clock provides a precise time to enable synchronisation for the hardware under study.
For more information: www.gegridsolutions.com/measurement_recording_timesync/catalog/rt430.htm
Comms emulator (Netropy 10G2)
The Centre has a comms emulator that enables the simulation of communications and individually control for impairments, such as bandwidth constraints, latency, jitter, and loss.
For more information: www.apposite-tech.com
Intelligent Electronic Device (IED)
The Centre hosts the IED that was developed by KTH as part of the PROMOTioN project. This IED enables the protection of a meshed DC-grid as part of a simulated network. The Centre hosts the IED that was developed by KTH as part of the PROMOTioN project. The IED is design to detect and discriminate the faulty line of the DC grid and provides appropriate trip signal to relevant the DC Circuit breaker. The IED is programmed with one or more line protection algorithms, and can execute the same algorithm(s) within multiple functional units.