Browse Conferences
Mechanism analysis and control measures of wind turbine generators tripping caused by HVDC contingencies
As long as the appearance and continual commission of the wind-thermal-bundled (WTB) high-voltage direct current (HVDC) transmission system, in order to ensure security and stability, it is necessary to carry out further study on the reacti...
Surface and interface charge behaviour in multi-layer oil-paper insulation under DC voltage application
Oil-paper insulation system is an extraordinarily essential system of converter transformers as well as HVDC oil-impregnated paper capacitance graded bushings. Due to a few researches in surface and interface charge behaviour of supporting ...
Cost analysis and comparison of HVAC, LFAC and HVDC for offshore wind power connection
Low frequency AC (LFAC) has been proposed as a means to avoid some of the large converter station costs of high voltage DC (HVDC) while delivering some of the benefits in terms of better cable utilization and its technical feasibility has b...
A novel method for preventing mal-operation of the zero-sequence directional component
Zero-sequence directional components of the healthy line would incorrectly discriminate the fault direction, causing mal-operation of the pilot zero-sequence directional protection, due to the influence of mutual inductance between lines un...
Research on reactive voltage characteristics and control strategy of offshore wind farm
Offshore wind farm is usually integrated into bulk grid onshore through the AC submarine cable. The voltage stability of grid is affected due to reactive voltage characteristics and compensation scheme. It's necessary to study reactive volt...
Harmonics analysis and simulation of NLM in MMC
Selecting inter-phase circulation, up and lower bridge arm current, and AC output voltage wave of the inverter as research objects, this paper analysed harmonic components in Modular Multilevel Converter (MMC) in Nearest Level Modulation (N...
Feasibility research of lightning rods installed on the frames of main transformers in 1000KV UHV substation
Because 1000kV UHV substations cover enormous area, it is hoped that lightning rods be installed on the frames of main transformers to reduce installation of excessive independent lighting rods, and thus to reduce substation area and cost. ...
Influence of aging characteristics of conductor surface on resultant electric field of ±800kV UHVDC transmission line
Aging characteristics of conductor surface of ultra-high voltage direct current (UHVDC) power transmission lines have a large influence on ground-level resultant electric field. A method to analyse the impact of the aged conductors on resul...
DC fault analysis of VSC based multi-terminal HVDC systems
The use of Voltage Source Converter (VSC) based HVDC transmission has been strongly suggested for the interconnection of various power networks. However, VSCs susceptibility to DC faults, particularly the potential damage caused to the conv...
Influence of DC Voltage Droop Settings on AC System Stability
This paper presents a methodology to study the impact of different DC voltage droop settings on the AC system stability. When several Voltage Source Converters (VSC) in a DC system jointly control the DC voltage by means of droop control, a...