Development of an advanced LCC-HVDC model for transmission system

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Colleges, School and Institutes

External organisations

  • National Grid
  • Toshiba International (Europe)


This paper describes an advanced LCC-HVDC model developed in PowerFactory for National Grid under the background of Western HVDC link in UK. Unlike most of the HVDC models in different simulation packages, this model explicitly incorporates the Automatic Filter Switching control and On-Load Tap Changer (OLTC) control. The automatic filter switching control is designed to limit the reactive power exchange between the converter station and the connected AC system at all power transfer levels to be within acceptable range. The OLTC is designed to dynamically control the firing angle at rectifier side and extinction angle at inverter side within their desirable ranges. Under the PowerFactory environment the DIgSILENT Programming Language (DPL) is written to carry out the system setup and the DIgSILENT Simulation Language (DSL) model is used to implement the controller designs.


Original languageEnglish
Title of host publicationIET Seminar Digest
Publication statusPublished - 2015
Event11th IET International Conference on AC and DC Power Transmission - Birmingham, United Kingdom
Duration: 10 Feb 201512 Feb 2015


Conference11th IET International Conference on AC and DC Power Transmission
CountryUnited Kingdom


  • Automatic filter switching control, LCC-HVDC model, On-load tap changer control, Power factory/DIgSILENT

ASJC Scopus subject areas