Title:

Distributed generation and hosting capacity. Need for stochastic analysis.

Date:

Tuesday, April 24, 2012 at 12:00 noon.

Location:

Holiday Inn South, 1330 Pembina Highway, Winnipeg

Speaker:

Tomas Yebra Vega, Ph.D.

Abstract:

The introduction of non-conventional renewable energies challenges the current power system. The situation can be difficult to solve with large penetration of small generators in the distribution level because this network has lower levels of automation and monitoring than the transmission system. Therefore it is necessary to know the capacity of the current distribution network to connect future sources without affecting the performance of the system.

Hosting capacity is a concept which allows calculating the amount of generation that feeders can integrate according to any performance index of the power system. The hosting capacity is not unique to any particular system and will vary depending upon how much risk individual operators or consumers are prepared to tolerate.

This presentation will introduce the concept of hosting capacity, and it will be applied to different performance indices which for different aspects of the power system such as overloading, voltage, and protection. It will also show that an evaluation of the hosting capacity using the worst case scenario gives results which underestimate the actual capacity of feeders. Therefore a stochastic approach and measurements will be shown as a better solution.

Speaker Bio:

Tomás Yebra Vega, Ph.D., holds BSc (2002) and MSc (2005) in Electrical Engineering from Universidad de León (Spain), and his Ph.D (2010) from Universidad Politécnica de Valencia (Spain). He has worked at the Energy Technological Institute (Valencia, Spain) for the past five years. He has worked on several projects connected with distributed generation, power quality and high voltage engineering. He has also been involved in the analysis, and elaboration of expert opinion reports of large electric power accidents such the outage of Barcelona in 2007. He has been currently working as a Post-doctorate fellow at the University of Manitoba since January 2011. His research areas are simulation of electric power systems, integration of distributed generation and analysis of stochastic variables in power systems.

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 April 20, 2012)

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

Late Registration (After April 20, 2012)

• IEEE Members – $17.00
• Non-Members – $21.00

The IEEE PES Winnipeg Chapter must guarantee a minimum attendance to the hotel, so please take a moment to register early by RSVP to Jieping Shao by Friday Noon, April 20, 2012, in one of the following ways:

• Phone: 360-3743
• Email: JShao@hydro.mb.ca

Documents:

• Event Poster [37KB PDF]

Title:

Geomagnetically Induced Currents (GIC): Manitoba Hydro’s Past and
Present Activities

Date:

Tuesday, March 27, 2012 at 12:00 noon.

Location:

Holiday Inn South, 1330 Pembina Highway, Winnipeg

Speaker:

Steve Shelemy, P.Eng

Abstract:

With the next solar cycle (sun spot) activity expected to peak sometime in 2012 to 2014, there has been a flurry of industry activity to assess and develop NERC Standards to harden the transmission system against the impacts of geomagnetically induced currents (GIC) resulting from such a solar storm. This presentation will provide an introduction to the phenomena of GIC and discuss past and present activities within Manitoba Hydro related to our response for the upcoming solar cycle. Study Results from a recent high level assessment of the impact GIC has on Manitoba Hydro Transmission System will also be presented.

Speaker Bio:

Steve Shelemy, B.Sc., M.Sc., holds BSc. degrees in Physics (1993) and Electrical Engineering (1999) from the University of Manitoba. In 2006 he completed his MSc in electrical engineering. He has been employed at Manitoba Hydro since 1999 when he entered the EIT program. While at Manitoba Hydro Steve has been worked in System Performance where he helped develop 2002-2003 seasonal Operating Guides and performed system studies to develop new Operating Guides related to the Harvey-Balta-Rugby-Glenboro 230 kV line, Ponton SVC, and St. Leon wind facility additions. Since 2006 Steve has been working in the System Planning Department responsible for generator interconnection studies and maintaining the Manitoba Hydro’s Transmission System Interconnection Requirements (TSIR) document. At System Planning he has been involved in Wuskwatim and St. Joseph interconnection studies, commissioning of the St. Joseph Wind plant and development of functional specifications for the Northern AC Cross-tripping scheme after the addition of Wuskwatim facilities. In 2007/8 he acted as the Manitoba Hydro sponsor for a R&D project with the Finish Meteorological Institute to assess the geomagnetic activity levels, related geoelectric fields and related GIC levels in Manitoba. Presently Steve is acting as the Manitoba Hydro sponsor for a R&D project with Natural Resources Canada to develop a Real Time GIC simulator for the Manitoba Hydro System. He is currently part of the NERC GMD Task Force and involved in assessing the impact GIC may have on the Manitoba Hydro System.

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 March 23, 2012)

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

Late Registration (After March 23, 2012)

• IEEE Members – $17.00
• Non-Members – $21.00

The IEEE PES Winnipeg Chapter must guarantee a minimum attendance to the hotel, so please take a moment to register early by RSVP to Jieping Shao by Friday Noon, February 24, 2012, in one of the following ways:

• Phone: 360-3743
• Email: JShao@hydro.mb.ca

Documents:

• Event Poster [61KB PDF]
• Presentation Slides [4.1MB PDF]

Title:

A Computer Vision Early-Warning Ice Detection System for the Smart
Grid

Date:

Tuesday, February 28, 2012 at 12:00 noon.

Location:

Holiday Inn South, 1330 Pembina Highway, Winnipeg

Speaker:

Jean-Sebastien Stoezel, P.Eng

Abstract:

Manitoba Hydro (MH) has been very proactive in melting ice on distribution (66
and 25 kV) transmission lines in order to prevent ice damage since the mid 1980’s. In 2004 MH Research Management Board sponsored an investigation into new and innovative methods to measure ice formation on the transmission lines. This investigation resulted in development and implementation of a state of the art early ice warning system. The vision based ice detection system measures ice accumulation using digital images directly from the overhead line conductors. Early warning ice alarms, ice accumulation rate information and accurate visual information of ice profiles is available on a 24-7 basis to the appropriate ice storm staff using the corporate WAN infrastructure. A total of 15 early warning stations have been implemented with 2 ice seasons of system experience. Additional development has been undertaken for an algorithm to aid in the detection of hoar frost transformation to ice. Hoar frost on the transmission conductors presents little risk, however under certain conditions hoar frost can transform into ice very
quickly, creating a serious condition. The ice vision system is a form of Smart Grid implementation on the distribution system.

Speaker Bio:

Jean-Sebastien Stoezel, B.Sc., M.Sc., is an Embedded Systems Design Engineer at the Manitoba HVDC Research Centre (MHRC). Jean-Sebastien completed his postsecondary education in Montpellier, France, before moving to Winnipeg. Since joining the MHRC in 2009 Jean-Sebastien has been acting as Technical Lead for the Line Fault Locator for HVDC Systems, Technical Lead for the innovative
Computer Vision Based Early Warning Ice Detection System and Technical Lead for the Manitoba Hydro Bipole 3 Right of Way Environmental Monitoring System.

Jean-Sebastien has been involved in other research projects including an electric vehicle battery repurposing system that interfaces with utility grids, and other custom designed embedded systems.

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 24, 2012)

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

Late Registration (After February 24, 2012)

• IEEE Members – $17.00
• Non-Members – $21.00

The IEEE PES Winnipeg Chapter must guarantee a minimum attendance to the hotel, so please take a moment to register early by RSVP to Jieping Shao by Friday Noon, February 24, 2012, in one of the following ways:

• Phone: 360-3743
• Email: JShao@hydro.mb.ca

Documents:

• Event Poster [61KB PDF]
• Presentation Slides [10.1MB PDF]

Title:

Analysis of Sub-synchronous Frequency Interactions in Power Systems Using Dynamic Phasors Based Small Signal Stability Assessment

Date:

Tuesday, January 24, 2012 at 12:00 noon.

Location:

Holiday Inn South, 1330 Pembina Highway, Winnipeg

Speaker:

Chandana Karawita., Ph.D., P.Eng.

Abstract:

The small signal stability analysis can be used to analyze sub-synchronous interactions in power systems if the network dynamics are properly modelled using dynamic phasors. The application of dynamic phasors for small signal stability models were discussed in a previous presentation (May 2011) by Dr Udaya Annakkage.

TGS has recently developed an in-house program (TGSSR) using this modelling technique. The program can handle generator units with multi-mass shafts, LCC and VSC HVdc systems, FACTS devices (SVC and STATCOM) and Wind turbines. This presentation will discuss the following interaction issues analyzed using the program. The validations using PSCAD simulations will also be presented.

• Multi-in-feed HVdc interactions
• Torsional interactions between generator-turbine units and LCC HVdc systems
• Torsional interactions between generator-turbine units and VSC HVdc systems
• Sub-synchronous interactions between series capacitors and type-3 wind turbines

Speaker Bio:

Chandana Karawita received the B.Sc. (Eng) degree from the University of Moratuwa, Sri Lanka in 2002 and the M.Sc. and Ph.D. degrees from the University of Manitoba, Canada in 2006 and 2009, respectively. He is currently working for TransGrid Solutions as a power systems studies engineer. Chandana has performed power systems planning studies in HVdc and HVac integrations and wind power generation using PSS/E and PSCAD software packages. He specializes in small signal stability assessment and power system stabilizer tuning, HVdc interaction studies and sub synchronous oscillation studies of power systems. Chandana is a registered professional engineer in the province of Manitoba.

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 January 20, 2012)

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

Late Registration (After January 20, 2012)

• IEEE Members – $17.00
• Non-Members – $21.00

The IEEE PES Winnipeg Chapter must guarantee a minimum attendance to the hotel, so please take a moment to register early by RSVP to Jieping Shao by Friday Noon, January 20, 2012, in one of the following ways:

• Phone: 360-3743
• Email: JShao@hydro.mb.ca

Documents:

• Event Poster [61KB PDF]
• Presentation Slides [1.1MB PDF]

Gallery:

Title:

Real-Life Observations of Power System Dynamic Phenomena: Some Interesting Aspects

Date:

Tuesday, December 13, 2011 at 12:00 noon.

Location:

Holiday Inn South, 1330 Pembina Highway, Winnipeg

Speaker:

Anil Kulkarni, Ph.D.

Abstract:

Classical power system dynamic phenomena like unstable swings, loss of synchronism and system frequency changes have been studied extensively in the past. The advent of synchronized wide-area measurement systems has made real-life observations of systemwide dynamics easily accessible to the power system community. While many of these observations are a “mere” confirmation of what has been known in theory, some do require more than a cursory examination.

In this talk, some interesting real-life observations will be presented and related issues will be discussed. These will include the following:

• Propagation delay of Electro-mechanical Transients (distinct from the fast Electromagnetic propagation)
• Occasional low amplitude sustained power swings (limit cycles?)
• Cumulative system inertia calculations from generator tripping events.

This talk will also briefly describe some distinctive features of the Indian Power Grid in which these observations have been made.

Speaker Bio:

Anil Kulkarni, Ph.D., is a Professor at the Electrical Engineering Department, IIT
Bombay India, and is currently at the University of Manitoba as a Visiting Professor. He obtained his BE degree in Electrical Engineering with Honours from the University of Roorkee, India and his ME and PhD degrees in 1994 and 1998 respectively, from the Indian Institute of Science, Bangalore.

His broad areas of interest are in Power System Dynamics, HVDC and FACTS. Recently, he has focused on Frequency Scanning Analysis of Network-Controller interactions, SSR, Dynamic Phasors and Wide Area Measurement Systems. He has worked closely with the utilities in India on several projects, the PSS tuning exercise in the Eastern and Western regional grids in particular.

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 December 9, 2011)

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

Late Registration (After December 9, 2011)

• IEEE Members – $17.00
• Non-Members – $21.00

The IEEE PES Winnipeg Chapter must guarantee a minimum attendance to the hotel, so please take a moment to register early by RSVP to Jieping Shao by Friday Noon, December 9, 2011, in one of the following ways:

• Phone: 360-7347
• Email: JShao@hydro.mb.ca
• Fax: 360-6142

Documents:

• Flyer [274KB PDF]
• Presentation Slides [2.1MB PDF]

Gallery: