Browse Conferences
Consideration of inertia for design of reactive power compensation devices for HVDC transmission systems
This paper considers two reactive power compensation devices for HVDC converter stations, the synchronous condenser (SC) and the Static Synchronous Compensator (STATCOM). The contribution of these devices to the networks inertia is very dif...
A three-phase four-wire statcom with reduced number of switches for unbalanced loads
In this paper, a 3-phase, V-connected, 5-level Static Synchronous Compensator (STATCOM) is proposed with reduced number of switches for single phase and unbalanced three-phase loads. The system is implemented and tested under different load...
Subsea cable projects — Minimising risks
The Authors have applied their combined experience of more than 50 years involvement in subsea cable projects, to present key issues and areas where effort must be applied to minimise the risk over the project life cycle. Pre-sanction engin...
Offshore wind farm cluster based DC collection network — Operation and design considerations
Models of a DC cluster based wind farm collection network with permanent magnet generators (PMG) and passive rectification are described and implemented to investigate the operability of groups of up to 5 paralleled wind turbines. The prese...
An assessment of Transient Assistive Measures using HVDC for special protection schemes: Case on the GB transmission system
Given the pressing need for additional transmission capacity to accommodate renewable generation, a range of advanced, technically effective and economically efficient corrective (or post-fault) actions that can release latent network capac...
Offshore DC grids: Impact of topology on power flow control
This paper illustrates how dedicated droop controls may take advantage of an offshore DC grid topology to implement different power flow policies, without any communication or master control. The issue of DC grid extension is also tackled w...
Comparison of HVDC Light (VSC) and HVDC Classic (LCC) site aspects, for a 500MW 400kV HVDC transmission scheme
This paper compares the site aspects of a Voltage-Sourced Converter (VSC-HVDC) project and a Line-Commutated Converter (LCC-HVDC) project of similar rating. Initially a brief description of the two technologies is presented. Then the projec...
Apparent increase in Short Circuit Ratio (AISCR) as a measure of the impact of VSC converters on LCC converters in multi-infeed HVDC systems with VSC and LCC infeeds
A hybrid multi-infeed HVDC system, in which Voltage Sourced Converter based HVDC (VSC-HVDC) and linecommutated converter based HVDC (LCC-HVDC) interconnected by transmission tie line, is investigated. The “Apparent Increase in Short Circui...
The South — West scheme: A new HVAC and HVDC transmission system in Sweden
The South West scheme is an important part of the development of the Swedish national grid and is a key facility to enable the production of renewable energy, in accordance with Swedish and EU energy policy. It will reinforce the AC network...
System design of MMC VSC-HVDC demonstration project for windfarm connection
This paper presents the detailed system design of Shanghai Nanhui project--the first VSC-HVDC demonstration project in China. Two 18MW VSC converters based on Modular Multi-level topology are connected to transfer the energy generated by 11...