第五届电气技术研讨会陈哲报告ppt课件

1、1现代电力系统中的风力发电技术Wind Power in Modern Power SystemsZhe CHEN Professor, PhDzchet.aau.dket.aau.dk.ContentsStatus of Wind Power DevelopmentDanish grid code for wind turbine connectionWind power in power systems (voltage control and electricity market )Offshore wind power technologyIntroduction of wind po

2、wer research at the Department of Energy Technology, Aalborg UniversityContact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dk.3Renewable Energy TechnologyGeothermal . 15 yr avg growth: 27.7%2021 growth: 20.3%Steve Sawyer “Global Wind Market Update, EWEA 012 conf

3、erence April 2021, CopenhagenWind Power Development. 15 yr avg growth: 27.5%2021 growth: 6%Steve Sawyer “Global Wind Market Update, EWEA 2021 April 2021, CopenhagenWind Power Development.6Wind Turbine DevelopmentV164-7.0 MW.7The Supergrid would link a series of offshore wind farms through the Baltic

4、 Sea, the North Sea, the Atlantic, the Bay of Biscay and the Mediterranean.Developments in Wind Energy Technology.8Danish Power IndustryWind power covers 28% of electricity consumption 2021 Aims for a 50% wind share by 2025 Denmark also has large number of CHP installations which supply both heat an

5、d electricity load with a high efficiency. Development from the late 1980s to present .9Wind power featuresWind is less flexible and less controllable Wind power is intermittent and difficult to predictLarge shares of wind increase demand for capacity reserves and ancillary servicesUnfavourable geog

6、raphical allocation Attractive wind conditions are usually located in sparsely populated coastal areas and weak grid.10Steady stateFrequency /Power controlLow/high frequency supportVoltage support/reactive power compensation Power Quality, flicker, harmonicsTransient /dynamic stateFault ride through

7、, to stay connected during low voltage on the grid Ramp rateCommunication /power dispatchReliable communicationWind forecastingParticipate power marketOperate a wind farm/wind turbine like a power station/plantGrid Code: Technical document containing the rules governing the operation, maintenance, &

8、 development of the systemGrid Codes description and purpose11Active power production requirements at frequency/voltage variations25 kW to 1.5 MW and above11 kW to 25 kWDanish Grid Code: Technical regulation 3.2.5 for wind power plants with a power output greater than 11 kW .12Requirements for toler

9、ance of voltage drops for wind powerplants with a power output greater than 1.5 MWDanish Grid Code: Technical regulation 3.2.5 for wind power plants with a power output greater than 11 kW .13Requirement for reactive power supply, IQ, during voltage drops for wind power plants with a power output gre

10、ater than 1.5 MWDanish Grid Code: Technical regulation 3.2.5 for wind power plants with a power output greater than 11 kW .14Frequency control for wind power plants with a power output higher than 25 MW, as shown in connection with a minor downward regulation PDeltaDanish Grid Code: Technical regula

11、tion 3.2.5 for wind power plants with a power output greater than 11 kW .15Reactive power requirements 1.5 kW to 1.5 MW1.5 MW to 25 MWgreater than 25 MWDanish Grid Code: Technical regulation 3.2.5 for wind power plants with a power output greater than 11 kW .LOCATION :Transmission line in the South

12、of SpainArcos de la Frontera (Cdiz): 6 wind farms with an installed capacity of 122MW. Connected to 400kV.Tajo de la Encantada (Mlaga): 3 wind farms with an installed capacity of 111MW. Connected to 220kV.Huneja (Granada): 6 wind farms with an installed capacity of 248MW. Connected to 400kV.Voltage

13、Regulation DemonstrationC. Combarros, J. C. Prez ,“Results of implementing voltage control strategies in a cluster within the TWENTIES project framework, EWEA April, 2021Wind power controlEach cluster have a Control Unit The cluster Control Unit can implement various strategies to the different test

14、s. The controller will receive a voltage set-point and then determine a reactive power set-point per wind farm, in order to keep the voltage set-point received, taking into account the reactive power capacity of the wind farms. Voltage Control in a ClusterA proportional control algorithm C. Combarro

15、s, J. C. Prez ,“Results of implementing voltage control strategies in a cluster within the TWENTIES project framework, EWEA April, 2021Wind power controlEvolution of the Voltage 220kV and 400kV OscillationsSaturationTap changer influenceC. Combarros, J. C. Prez ,“Results of implementing voltage cont

16、rol strategies in a cluster within the TWENTIES project framework, EWEA April, 2021Wind power controlWind Farm behaviourFast responseQ availableSaturationC. Combarros, J. C. Prez ,“Results of implementing voltage control strategies in a cluster within the TWENTIES project framework, EWEA April, 2021

17、Wind power controlWind power in electricity marketSource: EWEASource: IEA Wind, Task 25.Wind power in electricity market21Anders N. Andersen,“Proactive participation of wind turbines in the balancing markets, EWEA April, 2021.Future offshore projects in DenmarkNicolaos A. Cutululis, Marisciel Litong

18、-Palima, Poul Srensen, “Offshore wind power production in critical weather conditions, TWENTIES Workshop.23Wind farms control under stormy conditions Flexible turbine control.Storm front forecasts. Coordinate wind farm control with tie line and HVDC interconnector control.Offshore wind power will co

19、ntribute significantly to future European energy supplyDanish offshore wind power is concentrated in a relatively small geographical areaCritical weather conditions can lead to large variations in offshore wind power productionA smoother wind turbine storm control will improve the needs of reserves

20、in the power systemOffshore Wind Power.Offshore Wind PowerBackground40 GW offshore wind farm in northern Europe by 2020150 GW offshore wind farm in Europe by 2030Offshore super gridThe challengesHigh capacity offshore HVDC transmission technologiesReliability, availability and maintainabilityLack of

21、 relevant standards25.Department of Energy TechnologyResearch in Wind Turbine SystemsRotorGearboxGeneratorPowerelectronicsTransformerGridMechanicalEnergyElectricalEnergyControl SystemWind EnergyContact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dk.Generators fo

22、r Wind TurbinesSystem cost Contact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dkDesign optimization of Generators for Wind Turbines.Control system of variable speed doubly fed induction generator28To mitigate the loads and fatigue of HAWTs under balanced and im

23、balanced conditions respectively.To mitigate the wind turbine output power oscillation (flicker) caused by 3p effect (wind shear, tower shadow, etc.)Contact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dk.Normal operationreactive power control by STATCOMWind Turb

24、ine Power QualityFlicker Mitigation with controlContact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dkWind Turbine Dynamic Stability in Power System TransientFault ride through of wind turbinesContact: Professor Z Chen, Department of Energy Technology, Aalborg U

25、niversity, zchet.aau.dkA fuzzy controller for FRT capability improvement of WTs.Offshore Wind Turbine/FarmsContact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dk.32Design and control for a new type of offshore wind farm Contact: Professor Z Chen, Department of E

26、nergy Technology, Aalborg University, zchet.aau.dk.Domestic loadsIndustrial loadsCity loadsWind farmsCHP plantProbabilistic approach for Systems with High Level Integration of Renewable Generation UnitsOperation mode selection, short-term planning, cable selection wind turbine capacity and energy cu

27、rtailment, frequency deviation analysis. Wind powerCHP generationLoadContact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dkProbabilistic modelling .Operation of Modern Power Systems in Competitive Electricity MarketsStudy the characteristics of a distribution sy

28、stem under a dynamic electricity-pricing, load management system and a large number of DGs.Propose an optimal operation strategy for a battery energy storage systemContact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dk.System stabilityControl strategy of DG gove

29、rnorControl strategy of DG exciter Load shedding strategyAdaptive protection set points Power qualityContact: Professor Z Chen, Department of Energy Technology, Aalborg University, zchet.aau.dkOperation and Control of Modern Distributed Generation Systems Control and Protection of Islanding Systems.Oscillation Performance and Wide-area Coordination Control of Power System with Large-scale Wind FarmsStudy the influence of wind farm integration on power system oscillation Design a wide-area damping control strategy, coordinating PSS