IEEE Winnipeg Section


PES Chapter Luncheon – February 2011



HVdc Power Order Reduction Scheme for Transient Stability Enhancement Based on Wide Area Synchronized Measurements


Tuesday, February 15, 2011 at 12:00 noon.


Holiday Inn South, 1330 Pembina Highway, Winnipeg


Francisco Gomez


Synchronized phasor measurement technology provides voltage and current phasors synchronized with high precision to a common reference. This is achieved by time synchronizing the sampling of signals and time tagging the phasors using the global positioning system (GPS). This allows computing different system variables with a very good resolution and track the evolution of the grid after major changes in the operation condition or critical disturbances.

The outline of this presentation introduces a measurement based High Voltage Direct Current (HVdc) power order reduction scheme for stabilizing large interconnected power systems after the occurrence of severe disturbances. This new approach is based on the Wide Area Phasor Measurement technology. Analytical results demonstrate that a significant reduction in the transient swing can be obtained by balancing out early enough the power difference between the generation and the load after a critical disturbance, and proves the usefulness of this approach in reducing the loss of synchronism of synchronous machines in Power Grids heavily based on HVdc transmission schemes. The effectiveness of the proposed algorithm has been demonstrated on the Manitoba Hydro system and has been conceived as a part of a new Special Protection Scheme (SPS) based on phasor measurements. This novel Special Protection Scheme has been tested on the Manitoba Hydro and Venezuelan power grids.

Speaker Bio:

Francisco Gomez received his Bachelor of Science (Eng.) and MSc. degrees in Electrical
Engineering from the Polytechnic Experimental National University Antonio Jose de Sucre (UNEXPO), Puerto Ordaz, Venezuela, in 2003 and 2007, respectively. Currently he is a PhD candidate in the Department of Electrical and Computer Engineering at University of Manitoba, Winnipeg, MB, Canada.

Since 2003, he has been working with the Applied Research Centre of Edelca Hydro, as a Research and Test Engineer in the Energy Systems Group. He is an accredited Professional Engineer in Venezuela. His main research areas of expertise are Power System Stability and Control, Transient modeling, Power System Protection and Power System simulation.

Cost and Registration:

  • Cash bar available at Noon.
  • Lunch served at 12:15 PM.
  • Meeting concluded at 1:30 PM.
  • Cost of the meal (payable at the door).

Early Registration (On or before February 11, 2011)

  • IEEE Members – $13.00
  • Non-Members – $17.00

Late Registration (After February 11, 2011)

  • IEEE Members – $15.00
  • Non-Members – $19.00

The IEEE PES Winnipeg Chapter must guarantee a minimum attendance to the hotel, so please take a moment to register early by RSVP to Shao Jieping by Friday Noon, 11 February 2011, in one of the following ways:



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