News: 2010

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Extraordinary results were obtained from the course of Power System Dynamic and Wind Power using DIgSILENT in Nicosia, Cyprus. A very good atmosphere for learning process was developed during the two days course. A group of 14 peoples participated in the course: personnel of the TSO, Post-doctoral research associates, PhD Students. Dr Francisco M. Gonzalez-Longatt is very pleased of this experience, very high level of the attendees and very good questions. So, he is very thankful for the invitation provided by the University of Cyprus, special mention to: Prof Elias Kyriakides, Dr. Charalambos Charalambous and Dr Stylianos Hirodontis.

Dr. Francisco M. Gonzalez-Longatt and the group

Several working meeting have defined several potential areas for future research collaboration with Prof Vladimir Terzija and Dr Francisco M. Gonzalez-Longatt.

Dr. Francisco M. Gonzalez-Longatt, Dr. Charalambos Charalambous, Prof. Vladimir Terzija and Dr Stylianos Hirodontis (left to right)

The research group members travelled to the Orites Wind Farm, area of Kouklia (Paphos district). This is a very important generation project and it is an 82-MW wind farm with 41 turbines, Vestas V90-2MW managed by DK Wind Supply Ltd.

Technician personal from Vestas and DK Wind Supply,  Dr Charalambos Charalambous, Dr Francisco M. Gonzalez-Longatt and Dr Stylianos Hirodontis (left to right)

viñeta Power system Dynamic and Wind Power using DIgSILENT PowerFactory (Basic V14). Dr Francisco M. Gonzalez-Longatt is very pleased to announce a coming seminar about DIgSILENT PowerFactory. This seminar provides a thorough and comprehensive introduction to the most important features of PowerFactory software. "Leaning-Doing" is the approach used by Dr Gonzalez-Longatt in seminar. The topics to be covered during the seminar include: Overview of power system analysis function in DIgSILENT, RMS simulations for analysis of power system stability. An introduction of the dynamic modelling with PowerFactory and its use for constant speed wind turbines is presented. The seminar will be held at The University of Nicosia, Nicosia, Cyprus 24th-25th May 2011.

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viñeta Course on Frequency Control and Inertial Response of Power Systems with wind Power Penetration. The frequency of a power system depends on real power balance: generation-demand. In the standard operation of a power system, the frequency is regulated within strict limits by adjusting the electrical supply to meet the demand. If the balance between generation and demand is not reached, the system frequency will change at a rate initially determinate by the total system inertia. The total system inertia comprises the combined inertia of most of spinning generation and load connected to the power system. The contribution of the system inertia of one load or generator depend if the system frequency causes change in its rotational speed and, then, its kinetic energy. Worldwide, electricity generation from renewable energy is increasing rapidly; it is especially true in terms of the increasing of the wind power penetration. This situation arise some issues regarding the system frequency control because wind turbines provide small or even none response to frequency changes. Power electronically controlled and/or power electronically connected generators such as DFIG and FPC wind turbines do not naturally provide inertia response. However inertia response can be emulated by adding a supplementary control signal proportional to the rate of change of frequency, this is named the Synthetic or Artificial Inertia. This approach imposes some challenges about control and protection systems. The course is designed to provide a solid understanding of the frequency control and inertial response of power systems with wind power penetration.

Course Brochure

 

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EES-UETP course on "Protection of Future Networks with Distributed Generation". During three days, the University of Manchester was the environment for the formidable course on "Protection Future Networks with Dispersed Generation". More than 20 participants, coming from more than 10 countries, including high-level enterprise partners, research centres and universities has participated in this important course: Belgian HV system operator Diegem (Belgium) Rolls-Royce plc (UK), OMICRON electronics (Austria), Mott MacDonald LTD (Dubai), Ricerca sul Sistema Energetico-RSE SpA (Italy), Schneider Electric Energy (UK), Catalonia Institute for Energy Research (IREC), INFRAX (Belgium), Automation R&D Alstom Grid, University of Genova, Technical University of Sofia (Bulgaria), Ngee Ann, Polytechnic (Singapore), KTH Royal Institute of Technology, Stockholm (Sweden), University of Strathclyde (UK). This course was organized by the School of Electrical and Electronic Engineering of the University of Manchester and the European Distributed Energy Resources Laboratories (BERlab) under the concept of the Electric Energy System University Training Partnership (EES-UETP).

Prof Vladimir Terzija has been the course leader with the help of his research group, and the list of course speakers has included a very good list of experts in subjects as protection, automation and smart grid.

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Wind Power Development Stalled in Venezuela. Venezuela could install as much as 1,600 MW of wind power generation by 2015-20, according to a key industry source that wished to remain nameless. He added that the country is making progress in pursuing three projects that could add as much as 300 MW in the next couple of years. Francisco Gonzalez-Longatt, vice president of Venezuelan Wind Energy Association (AVeol), says it's too early to provide an accurate forecast for the country's wind potential but notes Venezuela's 2,718Km northern coastal strip has strong wind speeds blowing an annual average of 8.9 meters per second. Francisco Gonzalez-Longatt, vice president of Venezuelan Wind Energy Association (AVeol), says it's too early to provide an accurate forecast for the country's wind potential but notes Venezuela's 2,718Km northern coastal strip has strong wind speeds blowing an annual average of 8.9 meters per second. "We could fill up the whole coast with offshore platforms because the wind speed there is very good," he notes. However, he adds reliable and sufficient ocean-depth studies are missing to make such a task feasible.

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Prof Lidi Wang is coming back to the School of Information and Electrical Engineering, Shenyang Agricultural University, China. Prof Vladimir Terzija and Dr Francisco Gonzalez-Longatt have met up with Prof Lidi Wang to end the present research projects and define future reach collaboration between the School of Information and Electrical Engineering, Shenyang Agricultural University and the University of Manchester. This meeting was held on Friday 12th November 2010, it was a spectacular opportunity to share experiencing and say good bye and wish safe trip to Prof Wang.

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“Intelligent/Macro/Micro/Sustainable/Smarter Grids: Challenges and Opportunities” is the conference title that Dr Gonzalez-Longatt has presented at EXPOELEC and Congreso de Instalaciones Electricas/Congress of Electric Installations, 13-16 October 2010, Caracas, Venezuela.   Electric power and energy systems of today are undergoing major changes in how they are evolving in their structure and how they are competing to meet the load demand. The centralized and vertical grid model based on electromechanical components, will be substituted by distributed and unbundled model with digitalized components. Generation, control and measurement will suffer changes and impacts with this new model. This presentation was a formidable opportunity to show modern and important concepts that are involved in the new paradigm of power utilities. High level attendants provided an amazing opportunity to share experiences and discuss about the future impact of smart grid concept into the Venezuelan power system. The presentation is available for download [click here]

[download presentation]

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Advanced Training on Modelling and Simulation of Wind Energy Conversion System has been held in CODELECTRA (Venezuelan Committee of Electricity)-Caracas, Venezuela. On Friday October 9, 2010, the Advanced Training on modelling and simulation of WECS has been held at the headquarters of CODELECTRA This high level course was lectured by Dr Francisco M. González-Longatt, he is an Research Associate at The University of Manchester, United Kingdom and Vice-President of the Venezuelan Association of Wind Energy (Aveol). Twenty-three participants were taught for eight hours an deep introduction to the theoretical aspects regarding the modelling and simulation of wind turbines, the main commercially available technologies was described completely. Subsets of elements was modelling one by one and the full model was developed, Furthermore, all the theoretical knowledge has been complemented with real experiences of Dr Gonzalez-Longatt, these wind turbines models were integrated into the electric power system, and the results have been discussed. The simulations have been performed using the famous, powerful, and amazing software for power system simulation: DIgSILENT ® and results obtained from MATLAB ® and Simulink have been compared with DIgSILENT.

 

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Advanced Training on Modelling and Simulation of Wind Energy Conversion Systems was done for member of CORPOELEC (Venezuelan power utility). On 6 and 7 October 2010, was held in the meeting room in La Electricidad de Caracas building, San Bernardino, Caracas, the advanced training on modeling and simulation of which energy conversion system, it was lectured by Dr. Francis M. González-Longatt, Research Associate at The University of Manchester, United Kingdom and Vice-President of the Venezuelan Association of Wind Energy (Aveol).

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viñeta Dr. Francisco M. Gonzalez-Longatt has lectured on 11 October 2010 at UNEFA-Maracay, Venezuela. It was a emotive speech because he was a associate professor at this university over 14 years. The spoke about the future challenges on the power systems as consequence of higher penetration levels of wind power. He started his lecture talking about the wind energy basic concepts, and he talked about the wind energy resource in Venezuela and the prospective development around the world, special emphasis is expected on wind energy assessment in Venezuela. Finally he talked about the 2030 vision of the electrical power system in Europe, specially words were dedicated to the important project Supergid. A wonderful set of questions/answers was the end of this important lecture.

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1st October 2010, during the XI Congreso de Estudiantes de Ingenieria IEEE UNEFA TACHIRA 2010, Venezuela, Dr Francisco M. Gonzalez-Longatt lecture about the "FUNDAMENTALS OF WIND ENERGY: VENEZUELA & THE WORLD".  He presented a  lecture about the wind energy basic concepts, and he talked about the wind energy resource in Venezuela and the prospective development around the world, special emphasis is expected on wind energy assessment in Venezuela. Dr Francisco M. Gonzalez-Longatt [Presentation] (16.9 MB)

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Dr Francisco M. Gonzalez-Longatt will lecture about Smart-Grids on 13th October 2010 during Congress of Electric Installations, 13-16 October 2010, Caracas, Venezuela. The presentation has been titled "Smart grid (Maro/Micro): Challenges and Opportunities (Redes Inteligentes Sustentables (Macro/Micro): Retos y Oportunidades)". Electric power and energy systems of today are undergoing major changes in how they are evolving in their structure and how they are competing to meet the load demand. The centralized and vertical grid model based on electromechanical components, will be substituted by distributed and unbundled model with digitalized components. Generation, control and measurement will suffer changes and impacts with this new model. This is the context in which MacG-MicG-DG-DER-RES and SMART GRIDS are being developed [Presentation Resume] [Event Program] [Event Registration]

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"FUNDAMENTALS OF WIND ENERGY: VENEZUELA & THE WORLD (Fundamentos de la Energia Eolica: Venezuela y el Mundo)". Dr Francisco M. Gonzalez-Longatt will be present on XI Congreso de Estudiantes de Ingenieria IEEE UNEFA TACHIRA 2010, He will  lecture about the wind energy in Venezuela and prospective development around the world, special emphasis is expected on wind energy assessment in Venezuela. [Brief]. On the other hand, Mr Carlos Mendez, former student of Dr. Gonzalez-Longatt, will talk about the wake effect over the steady-state behaviour of wind farm. This is good opportunity to learn about the Venezuela progress in terms of wind power [Brief] .

 

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Congreso de Instalaciones Electricas/Congress of Electric Installations, 13-16 October 2010, Caracas, Venezuela. The IX Congress of Electric Installations offers an unbelievable opportunity to Bringing together professionals and technicians in order to exchange information and discuss experiences and issues related to electrical installations in medium and low voltage and electrical service and telecommunications. This event will be held between 13rd to 16th October 2010 on Caracas, Venezuela.  [Download Brochure]


 

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XI Congreso de Estudiantes de Ingenieria IEEE UNEFA TACHIRA 2010, Venezuela. 29th September to 2nd October 2010. This event will be held at the National Experimental University of the Bolivarian Armed Force. Núcleo Táchira. San Cristobal, Venezuela. This event is the most important engineering meeting for more than 400 students around Venezuela. This year will be held in San Cristobal city at 600 km of the capital city of Venezuela, Caracas. during five days, technical presentation about all branches of engineering will be done by important researchers from Venezuela and around the world. San Cristobal Venezuela, 29th September to 2nd October 2010. [Download Brochure]

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viñeta "Wind power could play role in solving Venezuelan power crisis". Dr Francisco M. Gonzalez-Longatt was interviewed by the Business News America journalist Nathan Crooks of about the role of wind power integration on Venezuela. He is optimistic about the future of wind power integration into Venezuelan power system. He said "When you look at the economic studies for any wind farm in any part of the world, the power is always going to be more expensive than from conventional sources. But in the case of Venezuela, you don't have to burn fuel. That fuel can then be exported at international prices. So you can't just compare the local cost of wind power with the local cost of conventional power. If you take into account the extra oil you can export, wind power begins to look a lot more attractive". For complete reading of this interview please go here

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Research Group Barbecue 2010. The traditional barbecue for Electrical Energy and Power Systems Group of the School of Electrical and Electronic Engineering at the University of Manchester on 23rd July 2010. An exceptional cold and sunny weather was the environment where around seventy people between academic and research staff and PhD students share experiences and talk about different interest. Good food and drinks help to create a amazing atmosphere to increase the synergy and provide the resilience for a high lever research group. Important people attended to this event: Prof. Vladimir Terzija, Prof Daniel Kirshen, Dr Mutale, Dr Li, Dr Dei, Dr Gonzalez-Longatt and PhD students. Thanks to Mr Muhammad Aali  for the photos.

Research Group (Photo: M. Aali)

Prof Vladimir Terzija, Mr Deyu cai, Dr Francisco Gonzalez-Longatt, Mr Pawel Regulski, Mr Peter Wall (Photo: Mr M. Aali)

Dr Francisco M. Gonzalez-Longatt at phone (Photo: Mr M. Aali)

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Opinions and results provided by Francisco M. Gonzalez-Longatt have been published in the most famous Newspaper of Venezuela. Results of most recent research of Dr Francisco M. Gonzalez-Longatt have been published in the Venezuelan newspaper "El Nacional". He was questioned his opinion about the first wind farm in Venezuela and He said "this project will be finished by end of 2011, 100 MW for wind power generation to support the Venezuelan Power System".

 

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Research Project Meeting "WAMPAC". An important project meeting about Wide Area Monitoring, Protection and Control System  was developed in The University of Manchester on 11st May 2010. Several important aspects in WAMPAC was discussed with the utilities partners from Scotland. Topic such: Real time load modelling supported by PMU Intelligent control islanding Inertia constant estimation Inter-area oscillation, Parameter estimation in Machines, etc were presented during this session.

 

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“Future Wide Area Monitoring, Protection and Control System in GB and IRL Network”. A superb project meeting was developed in The University of Manchester last 23rd April 2010. National Grid project meeting regarding the future vision of WAMPAC in the Great Britain and Ireland Network. Dr. Mark Osborne from NG was an important visitor who share comments and opinion about the project under development by the WAMPAC Research team in Manchester.

Prof. Vladimir Terzija during the panel session

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A great successful was the short-Course Wind energy Conversion System for Electricity Production. Over 35 professionals from very large companies such as CORPOELEC Venezuelan PDVSA, MENPET, etc and students gathered on Friday April 9, 2010 at the premises of the library of the University Simon Bolivar, Caracas, Venezuela. Dr. Francisco M. González-Longatt shared their knowledge of wind systems for electricity production. In this mini course had the opportunity to address the major issues in terms of wind systems for more than four hours. The host of the public was very high, because in just two days, ran out of seats for the course. This course is a simple demonstration in order to create the need for participants to delve even more in each of the topics. In the future, raises the possibility that Prof. Francisco M. González-Longatt, dictate an intensive course of approximately 40 hours, with a great and deep contain.

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Dr Francisco M. González-Longatt has been interviewed about their views on renewable energy in Venezuela. On Friday, 9th April 2010, the renowned journalist Andres Rojas Jiménez of El Nacional newpaper, Venezuela, has interviewed Dr Francisco M. González-Longatt about his opinion regarding alternative energy resources and electricity situation in Venezuela. Dr Gonzalez-Longatt has been emphatic on the need to create a culture of saving energy in the population, and he has agreed the implementation of new tariff schemes will help both the subscriber as the electricity companies in Venezuela. Hourly rates, said Dr Gonzalez-Longatt, largely aimed at encouraging voluntary savings, efficiency, and thus to flatten the demand for electricity. Similarly noted a reduction in the frequency of Venezuelan interconnected system operation as a simple technical measure and energy saving. Finally, Prof. Francis M. González-Longatt to pointed out the need for screening and selection of solid resources as a state policy, which finally allows to use the valuable resource of garbage as a source for electricity production. [Download the Article 1 2]

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Six Areas with High Wind Potential in Venezuela. One of the major newspapers in Venezuela, El Nacional has reviewed the participation of Dr Francisco M. González-Longatt in the seminar held at the Universidad Bolivariana de Venezuela, Caracas. Based on the preliminary results achieved by Prof. Francis M. González-Longatt six locations with high wind energy potential has been found. On Thursday April 8, 2010, and article entitled Six Areas with wind power, has referred the six possible location as: Coro, San Tome, Cumana, Guiria, Maracaibo, Porlamar. These sites have been identified as potential areas for the exploitation of wind energy resources in Venezuela [See newspaper history]

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Preliminary Wind Resource Atlas of Venezuela. On Wednesday April 7, 2010 was performed with great success one day meeting titled Wind Energy Project in Venezuela. Dr Francisco M. González-Longatt, lectured about a Preliminary Wind Resource Atlas in Venezuela. This Atlas is based on measurements of 2005, 2006 and 2007 years from 37 meteorological stations distributed over the whole of Venezuela. Statistical imputation treatment algorithm based on a maximum expectation was used for the completion of the lost data. A spatial interpolation method was used to determine the wind resource (speed and power density -Watt/m2) like treatment necessary to consider the effect of terrain on the wind resource. As a result of this research has determined that the stations with high power density were the Choir, Porlamar, Cumana and Güiria, which form part of northern Venezuela. Spatial interpolations show the best features of wind are located in Zulia, Falcón, Nueva Esparta and Sucre. Wind speeds in those states exceed Class 3 winds are defined as acceptable for wind generation, and even in places like Rio Seco in Falcon state speeds reach 6.5 m/ s. [Download Presentation] [Download newspaper]

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Wind Energy projects in Venezuela (PROYECTOS DE ENERGÍA EÓLICA EN VENEZUELA). The Centre for Science Studies Energy and Hydrocarbons Preliminary Wind Resource Atlas of Venezuela. On Wednesday April 7, 2010 was performed with great success the day Wind Energy Project in Venezuela. Prof. Francisco M. González-Longatt, made the presentation of a Preliminary Wind Resource Atlas in Venezuela. This Atlas is based on measurements of the years 2005, 2006 and 2007 from 37 meteorological stations distributed over the whole of Venezuela. Statistical imputation treatment algorithm based on a maximum expectation was used for the completion of the lost data. A spatial interpolation method was used to determine the wind resource (speed and power density -Watt/m2) like treatment necessary to consider the effect of terrain on the wind resource. As a result of this research has determined that the stations with high power density were the Choir, Porlamar, Cumana and Güiria, which form part of northern Venezuela. Spatial interpolations, the best features of wind had Zulia, Falcón, Nueva Esparta and Sucre. Wind speeds in these states exceed Class 3 winds are defined as acceptable for wind generation, and even in places like Rio Seco in Falcon state speeds reach 6.5 m / s. of the Bolivarian University of Venezuela (UBV) and the Venezuelan Wind Energy Association invite the Seminar titled: WIND POWER PROJECT IN VENEZUELA. Date: April 07, 2010: 8:00am. Place: UBV, Caracas, Venezuela. Dr Francisco M. Gonzalez-Longatt will lecture about the "PRELIMINARY WIND MAP OF VENEZUELA" [Details -in Spanish]

 

Sent by: FGL, 6th January of 2009

 

 

Sent by: Dr. Francisco M. González-Longatt 27 December 2011. fglongatt.org.ve

Comments: fglongatt@fglongatt.org.ve

 

 

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