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Systemic Impact Caused by the Integration of La Guajira Wind Farm

F. Gonzalez-Longatt, Senior Member, IEEE

 named in Spanish: “Plan Piloto Nacional de Generación Abstract— La Guajira peninsula on the western part of Eólica” (National Plan for the use of wind power). This has been defined as a potential area for wind power ambitious plan was defined to start on 2008 until 2013 and it developments and one of them is La Guajira wind farm. This included installation of twenty weather stations across several paper establishes the systemic impact of the integration of the locations across Venezuela. Phase 1 of this wind farm on the western area of Venezuelan power system. Three integration scenarios are defined in this Three locations were defined in La Guajira peninsula and paper considering the connection of transmission lines either on meteorological towers equipped with anemometers, wind 138kV or 24 kV. The steady-state performance is evaluated vanes, temperature, pressure, and relative humidity sensors considering the changes on the local voltage profile. The dynamic were selected to be installed at: (i) Caño Paijana (Lat. behavior of the western power system is evaluated trough 11.132222, Long. -71.805833), (ii) Caño Sagua (11.3765, - response of the main electro-mechanical variables obtained from 71.956), (iii) Quisiro (10.9000, -71.31666). The average- time-domain simulations. Two large contingencies are considered. The main contribution of this paper is demonstrates monthly wind speed for the Caño Sagua, and Caño Paijara are the positive effect of the wind farm integration on 138kV, the low shown on Fig. 1, where a yearly-average is 8.85m/s and voltage fault through capabilities on the wind turbine enables 8.09m/s respectively. good voltage profile during fault condition and fast post 12 Caño Sagua contingency voltage recovery. 10 Caño Paijara

8 Index Terms— Electric power system, power system dynamic, 6 wind power generation, wind power integration. 4 2 I. INTRODUCTION 0 Jan Feb Mar Apr May Jun Jul Agt Sep Oct Nov Dec LONG history related the interest of Bolivarian Republic Fig 1. Monthly Wind Speed at two locations on the La Guajira Peninsula. A of Venezuela on developing Renewable Energy Sources H. Montiel in [5] defined La Guajira peninsula wind (RES) is found in some reports since 60's [1]. However, more potential is of a “world class quality” based on measurements aggressive policies on the use of environmentally friendly plus satellite measurements and references meteorological electricity generation have begun in recent years. Several stations. The author claims the possibility of installing more academic projects have been reported to promote RES than 10,000 MW on five stages considering onshore and installations in several areas of Venezuela [2], [3]-[4], offshore wind farms in the Gulf of Venezuela. especially wind power energy. It includes five proposed wind The objective of this paper is to establish the systemic farms: the archipelagoes and islands of Los Roques, Los impact of the integration of the Phase 1 of this wind farm on Monjes, La Ochila, La Blanquilla and La Tortuga Island [2]. the western area of Venezuelan power system. All the data In addition to these projects two wind farms, of utility scale, used for simulations purposes is publically available. are presently under development in mainland Venezuela: La The structure of this paper is a follow. Section II describes Guajira, and La Peninsula de Paraguaná [1], [2], [3]. briefly the western Zulia power system, La Guajira wind farm, There is not a Venezuelan wind atlas currently available for defines the wind turbines model used in this paper and define Venezuela, however, some reports [4], [3] has identified some the integration cases whilst Section III presents the simulation preliminary areas suitable for wind energy projects and results and discussion about the finding with special emphasis includes La Guajira peninsula [2], [5]. The Venezuelan on their significance on the systemic impact. The main government has defined a preliminary plan to use the wind contribution of this paper is demonstrates the positive effect of energy resource available in Venezuela in recent time; it is the wind farm integration on 138kV, the low voltage fault through capabilities on the wind turbine enables good voltage Manuscript received December 7, 2012. profile during fault condition and fast post contingency F. Gonzalez-Longatt is with the Faculty of Engineering and Computing, voltage recovery. The conclusions of this paper are presented Coventry University, EC-332, Priory Street, Coventry CV63FG, United on Section IV. Kingdom (e-mail: [email protected]). He is Vice-President of Venezuelan Wind Energy Association.

978-1-4799-1303-9/13/$31.00 ©2013 IEEE > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 2

II. SYSTEM DESCRIPTION AND MODELING Venezuela’s power covers the western part of Venezuela and is known ad Western Zulia. The peak of power demand in this A. Wind Power Projects at La Guajira Peninsula power system is 1,713 MW and 13 generation units produces H. Montiel in his paper titled “Pilot Project for La Guajira around 1,105MW, the remaining demand is supplied by Wind Plant” [5] proposes the development of the wind power interconnection to the Venezuela’s power system. The western at La Guajira Peninsula. Five stages are defined: four are Zulia power system includes: 116 transmission lines in 230, located on land and a fifth stage that involves offshore wind 138 and 24 kV and 137 buses. A simplified representation of power (see Fig. 3). The final stage suggests the possibility of the most important components involved on the integration of installing more than 10,000 MW in the Gulf of Venezuela. La Guajira wind farm is depicted on Fig 4.

Fig 3. Representative single-line diagram of the Western Zulia Power System. Fig 2. General description of the five stages proposed for the developing of wind power at La Guajira Peninsula. C. Wind Turbine Modeling The final target of the Venezuelan Government is to Fig. 5 depicts the general structure of the full model for a develop 10,000 MW in the area of the Upper Guajira from VSWT with a direct-drive PMSG connected to the grid using Caño Sagua and Caño Paijana [6]. La Guajira wind farm is a full converter. The main subsystems shown on Fig. 5 are one of the potential projects in this area. This project is to be modeled in this paper. Models and parameters are carefully developed in 6 stages made up of 36 wind turbines. A surface selected from previous publications [7], [8], [9], [10]. area of 285km2 will be used to install 216 wind turbines generating 454MW. P Pac ,Qac m Pac ,Qac

The Phase 1 of the La Guajira wind farm consists of 75.6 vw Pw r I MW and it will be developed in two phases: (i) Phase 1-A that s Vf, P s involves the installation of 12 wind turbines of 2.1 MW each set   Qset one (25.2MW) and (ii) Phase 1-B will generate 50.4 MW. turb P This stage is designed to supply power to the municipalities of set Mara, Guajira and Almirante Padilla. The Argentinean Company IMPSA Wind provides the wind Fig 4. General structure for the model of a VSWT with a direct-drive PMSG turbines for the Stage 1 of La Guajira wind farm in Venezuela. [11], [9]. Four IWP-83-2100 wind turbines have been already erected D. Integration Scenarios on the wind farm using tower of 72-meters. The Phase 1-B Three cases are defined in this paper for connection of La will see Guajira expanded in six mini-tranches to a total of Guajira wind farm: 75.6MW with 36 turbines installed and operational by 2014.  Case I: The Phase 1-A (25.2 MW) assumed to be The IWP-83-2100 is a variable speed wind turbine connected to the Western Zulia power system using two (VSWT) developed by UNIPOWER and uses the direct-drive transmission lines (24kV) from the Cataneja substation. concept. This wind turbine provides a nominal power of 2.1  Case II: The Phase 1 of La Guajira wind farm (75.6MW) MW at nominal wind speed of 13m/s and is designed is connected by two transmission lines at 24kV to the considering a wind class II-IEC- 61400-1. It uses a multi-pole Puerto Rosa substation. permanent magnet synchronous generator (PMSG) is  Case III: The Phase 1 (75.6 MW) is connected to the connected to the grid using a full power converter (FPC). Puerto Rosa substation using two transmission lines at B. Western Zulia Power System 138 kV. Venezuela's power system is an integrated vertical power Two overhead transmission lines are considered in each company, called Corporación Electrica Nacional (Corpoelec) case in order to provide flexibility on normal operation and which covers most of the country, and it includes electricity increases security. Conductor type AAC Petunia 750 kcmil 37 grid consists of 11,747 kilometers of 765kV, 400kV, and 230- is used on the transmission line design. kV transmission lines. One of the operational areas on the > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 3

III. SIMULATIONS AND RESULTS farm using transmission system at 138kV, Case III, provides The integration of La Guajira wind farm into the Western the best results in term of local steady-state voltages. Zulia power system is expected to produce changes on the B. Dynamic Behavior system’s performance. The assessment of these changes is A three-phase short circuit on overhead transmission line necessary to define some potential system reinforcements. followed by circuit breakers opening the faulted transmission This section presents the main simulations and results line is selected as event of evaluate the local dynamic on the analyses about the integration scenarios defined on Section western Zulia power system. Two well-known large II.d. Steady-state and time-domain simulations are performed ® TM disturbances on 230kV transmission lines are used for using DIgSILENT PowerFactory [12]. Dynamic models dynamic simulations in this paper: 1) Tablazo-Punta Palma are created by the author using DIgSILENT Simulation 230 kV and 2) Tablazo-Cuatricentenario 400kV. Simulation Language (DSL). results are presented in the form of plots for variables

A. Changes of Voltage Profile corresponding to the system (V, P, Q and r) and wind farm Steady-state bus voltages of all integration scenarios are (V, P, Q and Vdc) side. Results for integration Case I and Case calculated using power flows. Full converter wind turbine III are presented in this paper and comments and analysis for allows voltage or power factor control. Four constant power key finding are presented. Results of Case II are not presented factors (pf) are considered in each case: 1.0, 0.99, 0.98 and in this paper because space limitations. 0.97 (producing reactive power). 1) Contingency A: Tablazo-Punta Palma 230 kV This contingency produce a large impact on the local (a) Integration Case I dynamic, it involves the lost of 115MW power transfer on the Base Case and very low voltages post disturbance (Ave. <0.76 p.u) with slow post disturbance recovery (~1.65sec).

1.25 329.98 2.339 s Active Power (p.u) 308.864 MW DIgSILENT RLG_16 1.00 0.572 s 239.21 0.646 s 0.817 p.u. TZII_05 237.446 MW

0.75 148.45 (b) Integration Case II 0.50 57.679

0.25 -33.089 Terminal Voltage (p.u) 0.00 -123.86 -0.10000.5975 1.2949 1.9924 2.6898 [s] 3.3873 -0.10000.5975 1.2949 1.9924 2.6898 [s] 3.3873

331.71 1.0264 TZ_I_01 2.132 s 1.025 p.u. RLG_16 222.94 1.0200 (c) Integration Case III 114.17 1.0136

5.4040 1.0072

-103.36 1.0008 RLG_16 Reactive Power (p.u) TZ_I_01 Rotor Speed (p.u) -212.13 0.9944 -0.10000.5975 1.2949 1.9924 2.6898 [s] 3.3873 -0.10000.5975 1.2949 1.9924 2.6898 [s] 3.3873

fglongatt "La Guajira" Wind Farm Results Voltage and Power Date: 11/29/2012 Francisco M. Gonzalez-Longatt "Zulia" Area Results Annex: Project /2 Fig 5. Changes on Steady-State bus Voltages for the Integration Cases. Fig 6. Response of Western Zulia power System: Contingency A, Base Case. The bus voltage change (V) is calculated in percentage The generation unit RLG_16 in Ramon Laguna power plant (%) of the deviation from the voltage previous the integration exhibits the largest changes on electro-mechanical variables. of La Guajira wind farm. Fig. 6 shows the voltage change in Large clearing times (>590ms) for this contingency trips the most important and representative substations on Western voltages oscillations and produce local voltage stability Zulia power system. Lower power factor produces large problems (see Fig. 7). The trip of Tablazo-Punta Palma changes on the bus voltages. It is a very positive effect on the transmission line creates a deficit of reactive power around local voltage profile considering the integration Case I, in 52MVAr. Fig. 8 shows the results considering the integration fact, there are not overvoltages. Case II and Case III produce Case I and 527ms clearing time. The wind turbines used on the largest voltage rising even considering the wind farm the wind farm includes low voltage fault through (LVFT) working at unitary power factor. Operation a power factor capability allowing a better voltage profile during the fault on lower than 0.99 produces excessive local voltage elevation the substations near to the wind farm, and a slightly faster and the Case III is suggested to be operated at unitary power recovery period. However, the reactive power production on factor for all production regimes. Case I is not enough to produce dramatic systemic The increases on the bus voltages for the substations with improvements. Fig. 9 shows the results for integration Case II. short electrical distance from the wind farm are significantly The improvements on bus voltages during and after faults are higher that remote substations. There is a significant notorious as consequence of the transient reactive power improvement on the bus voltage at Puerto Rosa, Paso Diablo, control on the wind turbines. Rotor speed deviations on all Mara and Tule substations. The integration of La Guajira wind > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 4

1.1637 230.95

Machiques 138 DIgSILENT local generation units are reduced. Also the systemic reactive El Tablazo 230 Active Power (p.u) RLG_16 power production during and after the fault are reduced. 0.9310 177.72 El Tablazo 400 1.1953 241.24 Urdaneta 138 Puerto Rosa 138 DIgSILENT RLG_16 Active Power (p.u) 0.6982 124.49

0.9460 183.84 0.4655 71.258 El Tablazo 400 0.6966 126.43 0.2327 18.029 Terminal Voltage (p.u) 0.4472 69.032 0.0000 -35.199 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993

0.1978 11.631 325.63 1.0169 Terminal Voltage (p.u) TZ_IV_10 RLG_14

-0.0515 -45.771 229.43 TZII_04 1.0119 B.Grande02 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 TZ_I_01

324.09 1.0209 TZ_I_03 133.22 1.0068 TZ_I_01 RLG_14 TZII_04 230.04 1.0154 37.013 1.0018

B.Grande01 135.99 1.0099 -59.194 0.9967 RLG_16 Rotor Speed (p.u) RLG_14 Reactive Power (p.u) TZ_I_01 41.943 1.0045 -155.40 0.9917 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993

fglongatt "La Guajira" Wind Farm Results Voltage and Power Date: 12/2/2012 -52.107 0.9990 Rotor Speed (p.u) Francisco M. Gonzalez-Longatt "Zulia" Area Results Annex: Project /2 80.542 1.20 TZ_I_01 0.346 s RLG_14 Reactive Power (p.u) 75.944 MW DIgSILENT -146.16 0.9935 0.325 s -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 68.131 1.00 0.985 p.u. 26.310 1.10 0.429 s 23.330 MW DIgSILENT 55.720 0.80

21.771 0.90 0.504 s 43.309 0.60 21.132 MW 0.220 s 0.203 s 21.505 MW 17.233 0.70 0.291 p.u. 30.898 0.40 Active Power (MW) 12.695 0.50 Terminal Voltage (p.u) 18.487 0.20 0.220 s 0.000.20 0.40 0.60 0.80 [s] 1.00 0.000.20 0.40 0.60 0.80 [s] 1.00 0.194 p.u. 8.1567 0.30 PWM Grid Side: Active Power/Terminal AC in MW Term WT: Voltage, Magnitude in p.u.

0.215 s Active Power (MW) Terminal Voltage (p.u) 19.206 1.100115 4.651 MW 0.001 s 0.312 s 3.6184 0.10 16.666 Mvar -0.10000.1271 0.3543 0.5814 0.8086 [s] 1.0357 -0.10000.1271 0.3543 0.5814 0.8086 [s] 1.0357 16.593 Mvar 0.988 s PWM Grid Side: Active Power/Terminal AC in MW Term WT: Voltage, Magnitude in p.u. 8.0290 1.100090 1.100 p.u.

10.126 1.10008 -3.1481 1.100065 0.001 s DC Link Voltage (p.u) 8.826 Mvar 0.390 s 5.0961 8.983 Mvar 1.10006 0.416 s -11.946 Mvar -14.325 1.100040 0.221 s 0.0664 1.10004 0.995 s -34.139 Mvar -0.028 s 1.100 p.u. -25.502 1.100015 1.100 p.u.

-4.9633 1.10002 Reactive Power (MVAR) DC Link Voltage (p.u) -36.679 1.099990 0.000.20 0.40 0.60 0.80 [s] 1.00 0.000.20 0.40 0.60 0.80 [s] 1.00 PWM Grid Side: Reactive Power/Terminal AC in Mvar PWM Grid Side: Voltage, Magnitude/Terminal DC in p -9.9930 0.301 s 1.10000 -13.880 Mvar -0.047 s Reactive Power (MW) 1.100 p.u. fglongatt "La Guajira" Wind Farm Results WT Date: 12/2/2012 Francisco M. Gonzalez-Longatt "Zulia" Area Results Annex: Project /5 -15.023 1.09998 -0.10000.1271 0.3543 0.5814 0.8086 [s] 1.0357 -0.10000.1271 0.3543 0.5814 0.8086 [s] 1.0357 PWM Grid Side: Reactive Power/Terminal AC in Mvar PWM Grid Side: Voltage, Magnitude/Terminal DC in p Fig 8. Response of Western Zulia power System: Contingency A, Case II. 1.1945 239.11 Date: 12/2/2012 Urdaneta 138

"La Guajira" Wind Farm Results WT DIgSILENT fglongatt El Tablazo 230 RLG_16 Francisco M. Gonzalez-Longatt "Zulia" Area Results Annex: Project /4 Active Power (p.u) Fig 7. Response of Western Zulia power System: Contingency A, Case I. 0.9556 185.39

The unit TZ_I_01, Termo Zulia power plant, is not longer El Tablazo 400 0.7167 131.67 the generation unit that produces the maximum instantaneous reactive power values during the systemic voltage recovery 0.4778 77.951 period 0.2389 24.233 Terminal Voltage (p.u) RLG_14 0.0000 -29.486 C. Contingency B:Tablazo-Cuatricentenario 400 kV -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993

325.20 1.0165 RLG_14 Tablazo-Cuatricentenario transmission line allows a power TZ_I_01 TZ_I_01 flow feeding from the Venezuela's power system (~145MW, 231.21 TZII_04 1.0115

48MVar). A contingency in this transmission line creates a 137.22 1.0065 serious generation deficit, problems of voltage and angle 43.232 1.0015 stability are possible for long clearing times (>295msec). Fig. 10 shows the results for this contingency on the base case. -50.757 0.9965 RLG_14 Reactive Power (p.u) Rotor Speed (p.u) The extreme values on the active power and rotor speed on the -144.75 0.9915 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 generation units are larger in this contingency compared with fglongatt "La Guajira" Wind Farm Results Voltage and Power Date: 11/29/2012 Francisco M. Gonzalez-Longatt "Zulia" Area Results Annex: Project /2 the Contingency A. It demonstrated the severity of the Fig 9. Response of Western Zulia power System: Contingency B, Base Case. contingency and the potential security risk. During the fault condition the wind farm stay connected Fig. 11 shows the simulations results considering the and injecting active power to the western Zulia power system, integration Case II. The power flows produced by the wind it has a very positive impact on the transient stability. The farm during this event are highly controllable with very small rotor speed exclusions during the first swing are reduced and time constant. This response provides very positive systemic the maximum rotor speed exclusion is delayed several consequences, good post distance voltages (Ave. >0.78p.u) hundred milliseconds. and fast recovery voltage response (<0.98sec). > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 5

1.1767 Machiques 138 240.50 RLG_16 , 2006. El Tablazo 230 TZII_04 Active Power (p.u) DIgSILENT TZ_I_01 [4] M. Acosta, "Impacto de la Compensacion Reactiva en el TZII_04 0.9414 183.59 Comportamiento de la Generacion Eolica. Caso de Estudio: Isla de

Arreaga 138 El Tablazo 400 0.7060 126.67 Margarita," Especialista en Instalaciones Eléctricas, Departamento de Conversion y Transporte, Universidad Simon Bolivar, , 0.4707 69.763 Venezuela, 2005. [5] H. Montiel, "Pilot Project for “La Guajira” Wind Plant," in Transmission 0.2353 12.852 & Distribution Conference and Exposition: Latin America, 2006. TDC Terminal Voltage (p.u) RLG_14 -0.0000 -44.060 '06. IEEE/PES, 2006, pp. 1-4. -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 [6] GotPowered.com. (2012, 27 November). Wind in Venezuela: Wind Farm 321.58 1.0199 in La Guajira. Available: http://gotpowered.com/2012/wind-in- TZ_I_01 RLG_14 TZII_04 TZ_IV_10 venezuela-wind-farm-in-la-guajira/ 230.13 1.0146 TZ_I_03 TZ_I_01 [7] T. Ackermann, Wind power in power systems. Chichester: John Wiley & 138.67 1.0093 Sons, 2005. [8] J. G. Slootweg, "Wind Power. Modeling and Impact on Power System 47.214 1.0040 Dynamics," PhD Thesis, Faculty Electrical Engineering, Mathematics and Computer Science, University of Delft, Delft, Netherlands, 2003. -44.243 0.9987

TZ_I_01 [9] F. González-Longatt, P. Wall, and V. Terzija, "A Simplified Model for RLG_14 Reactive Power (p.u) Rotor Speed (p.u) -135.70 0.9934 Dynamic Behavior of Permanent Magnet Synchronous Generator for -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 -0.10000.9199 1.9397 2.9596 3.9794 [s] 4.9993 Direct Drive Wind Turbines," in IEEE PES Trondheim PowerTech 2011, fglongatt "La Guajira" Wind Farm Results Voltage and Power Date: 12/2/2012 Francisco M. Gonzalez-Longatt "Zulia" Area Results Annex: Project /2 Trondheim, Norway, 2011. 82.342 1.20

0.427 s DIgSILENT [10] S. Achilles and M. Poller. Direct drive synchronous machine models for 70.970 MW Terminal Voltage (p.u) 69.504 1.00 stability assessment of wind farm. Available: http://www.digsilent.de/Consulting/Publications/DirectDrive_Modeling. 0.603 s 56.666 0.80 0.950 p.u. pdf 0.425 s 0.919 p.u. [11] F. Gonzalez-Longatt, "Dynamical Model of Variable Speed WECS: 43.828 0.208 s 0.60 0.203 s 21.071 MW 0.300 s 0.286 p.u. 0.300 s 22.157 MW 0.296 p.u. Attend of Simplification," presented at the Proceeding of Fifth 30.991 0.40 International Workshop on Large Scale Integration of Wind Power and Active Power (MW) Transmission Networks for Offshore Wind Farms, Glasgow, Scotland, 18.153 0.20 0.000.20 0.40 0.60 0.80 [s] 1.00 0.000.20 0.40 0.60 0.80 [s] 1.00 PWM Grid Side: Active Power/Terminal AC in MW Term WT: Voltage, Magnitude in p.u. 2006. [12] DIgSILENT, "DIgSILENT PowerFactory," 14.0.524.2 ed. Gomaringen, 17.539 0.001 s 1.10018 14.655 Mvar 0.385 s 0.825 s 10.242 Mvar 1.100 p.u. Germany, 2011. 8.2501 1.10014 -0.046 s 1.100 p.u. -1.0386 1.10010 V. BIOGRAPHY -10.327 0.496 s 1.10006 -7.725 Mvar Francisco M. Gonzalez-Longatt (S’98–M’00– 0.300 s -19.616 0.301 s 1.10002 -26.794 Mvar 1.363 Mvar SM’08) is currently a Lecturer in Electrical Reactive Power (MVAR) DC Link Voltage (p.u) -28.905 1.09998 Engineering in the Faculty of Engineering and 0.000.20 0.40 0.60 0.80 [s] 1.00 0.000.20 0.40 0.60 0.80 [s] 1.00 PWM Grid Side: Reactive Power/Terminal AC in Mvar PWM Grid Side: Voltage, Magnitude/Terminal DC in p Computing, University of Coventry and he is Vice-

fglongatt "La Guajira" Wind Farm Results WT Date: 12/2/2012 President of Venezuelan Wind Energy Association. Francisco M. Gonzalez-Longatt "Zulia" Area Results Annex: Project /5 His academic qualifications include first Class Electrical Engineering of Instituto Universitario IV. CONCLUSION Politécnico de la Fuerza Armada Nacional, Venezuela (1994), Master of Business The simulation results of the systemic impact produced by Administration (Honors) of Universidad the integration of the Phase 1 of La Guajira wind farm on the Bicentenaria de , Venezuela (1999) and PhD in Electrical Power western area of Venezuelan power system are presented in Engineering from the Universidad Central de Venezuela (2008). He is former this paper. Three integration cases of the integration are associate professor (1995-2009) and Chair (1999-2001) of the Department of Electrical Engineering of Universidad Nacional Politécnico de la Fuerza considered based on the use of transmission lines connected to Armada Nacional, Venezuela (1995-2009). He was formerly with the School the western Zulia power system, either on 138kV or 24 kV. of Electrical and Electronic Engineering, The University of Manchester as Simulations results demonstrate the positive systemic impact Postdoctoral Research Associate (2009-2011). His main area of interest is integration of intermittent renewable energy resources into future power of the integration of La Guajira wind farm (75.6MW) using system and smart grids. He is Senior Member of the IEEE, member of IET two transmission lines at 138kV. This interconnection (UK) and member of CIGRE. provides the best performance in term of local steady-state voltages, good post fault voltage profile and fast recovery voltage response.

REFERENCES [1] G. Massabie, Venezuela: A Petro-State Using Renewable Energies - A Contribution to the Global Debate about New Renewable Energies for Electricity Generation: VS Verlag für Sozialwissenschaften, 2008. [2] F. González-Longatt, J. Méndez, R. Villasana, and C. Peraza, "Wind Energy Resource Evaluation on Venezuela: Part I," presented at the Nordic Wind Power Conference NWPC 2006, Espoo, Finland, 2006. [3] F. González-Longatt, J. Méndez, and R. Villasana, "Preliminary Evaluation of Wind Energy Utilization on Margarita Island, Venezuela," in Sixth International Workshop on large-Scale of Integration of Wind Power and Transmission Networks for Offshore Wind Farms, Delft,