Difference between grid connections of large-scale wind power and conventional synchronous generation

In China, regions with abundant wind energy resources are generally located at the end of power grids. The power grid architecture in these regions is typically not sufficiently strong, and the energy structure is relatively simple. Thus, connecting large-capacity wind power units complicates the pe...

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Main Authors: Jie Li, Chao Liu, Pengfei Zhang, Yafeng Wang, Jun Rong
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2020-10-01
Series:Global Energy Interconnection
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2096511720301158
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author Jie Li
Chao Liu
Pengfei Zhang
Yafeng Wang
Jun Rong
author_facet Jie Li
Chao Liu
Pengfei Zhang
Yafeng Wang
Jun Rong
author_sort Jie Li
collection DOAJ
description In China, regions with abundant wind energy resources are generally located at the end of power grids. The power grid architecture in these regions is typically not sufficiently strong, and the energy structure is relatively simple. Thus, connecting large-capacity wind power units complicates the peak load regulation and stable operation of the power grids in these regions. Most wind turbines use power electronic converter technology, which affects the safety and stability of the power grid differently compared with conventional synchronous generators. Furthermore, fluctuations in wind power cause fluctuations in the output of wind farms, making it difficult to create and implement suitable power generation plans for wind farms. The generation technology and grid connection scheme for wind power and conventional thermal power generation differ considerably. Moreover, the active and reactive power control abilities of wind turbines are weaker than those of thermal power units, necessitating additional equipment to control wind turbines. Hence, to address the aforementioned issues with large-scale wind power generation, this study analyzes the differences between the grid connection and collection strategies for wind power bases and thermal power plants. Based on this analysis, the differences in the power control modes of wind power and thermal power are further investigated. Finally, the stability of different control modes is analyzed through simulation. The findings can be beneficial for the planning and development of large-scale wind power generation farms.
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spelling doaj.art-33b856f2899f496b87ed0684929302262022-12-21T22:50:58ZengKeAi Communications Co., Ltd.Global Energy Interconnection2096-51172020-10-0135486493Difference between grid connections of large-scale wind power and conventional synchronous generationJie Li0Chao Liu1Pengfei Zhang2Yafeng Wang3Jun Rong4State Gird Beijing Electric Power Company, Xicheng District, Beijing 100031, P.R. ChinaChina Electric Power Research Institute, Haidian District, Beijing 100192, P.R. ChinaIndependent Power Transmission Operator S.A., 89 Dyrrachiou str. & Kifisou 10443, Athens, Greece; State Grid International Development Co., Ltd, Xicheng District, Beijing 100031, P.R. ChinaState Gird Beijing Electric Power Company, Xicheng District, Beijing 100031, P.R. ChinaIndependent Power Transmission Operator S.A., 89 Dyrrachiou str. & Kifisou 10443, Athens, Greece; State Grid International Development Co., Ltd, Xicheng District, Beijing 100031, P.R. ChinaIn China, regions with abundant wind energy resources are generally located at the end of power grids. The power grid architecture in these regions is typically not sufficiently strong, and the energy structure is relatively simple. Thus, connecting large-capacity wind power units complicates the peak load regulation and stable operation of the power grids in these regions. Most wind turbines use power electronic converter technology, which affects the safety and stability of the power grid differently compared with conventional synchronous generators. Furthermore, fluctuations in wind power cause fluctuations in the output of wind farms, making it difficult to create and implement suitable power generation plans for wind farms. The generation technology and grid connection scheme for wind power and conventional thermal power generation differ considerably. Moreover, the active and reactive power control abilities of wind turbines are weaker than those of thermal power units, necessitating additional equipment to control wind turbines. Hence, to address the aforementioned issues with large-scale wind power generation, this study analyzes the differences between the grid connection and collection strategies for wind power bases and thermal power plants. Based on this analysis, the differences in the power control modes of wind power and thermal power are further investigated. Finally, the stability of different control modes is analyzed through simulation. The findings can be beneficial for the planning and development of large-scale wind power generation farms.http://www.sciencedirect.com/science/article/pii/S2096511720301158Large-scale wind power generationConventional synchronous generatorsGrid connection schemePower control
spellingShingle Jie Li
Chao Liu
Pengfei Zhang
Yafeng Wang
Jun Rong
Difference between grid connections of large-scale wind power and conventional synchronous generation
Global Energy Interconnection
Large-scale wind power generation
Conventional synchronous generators
Grid connection scheme
Power control
title Difference between grid connections of large-scale wind power and conventional synchronous generation
title_full Difference between grid connections of large-scale wind power and conventional synchronous generation
title_fullStr Difference between grid connections of large-scale wind power and conventional synchronous generation
title_full_unstemmed Difference between grid connections of large-scale wind power and conventional synchronous generation
title_short Difference between grid connections of large-scale wind power and conventional synchronous generation
title_sort difference between grid connections of large scale wind power and conventional synchronous generation
topic Large-scale wind power generation
Conventional synchronous generators
Grid connection scheme
Power control
url http://www.sciencedirect.com/science/article/pii/S2096511720301158
work_keys_str_mv AT jieli differencebetweengridconnectionsoflargescalewindpowerandconventionalsynchronousgeneration
AT chaoliu differencebetweengridconnectionsoflargescalewindpowerandconventionalsynchronousgeneration
AT pengfeizhang differencebetweengridconnectionsoflargescalewindpowerandconventionalsynchronousgeneration
AT yafengwang differencebetweengridconnectionsoflargescalewindpowerandconventionalsynchronousgeneration
AT junrong differencebetweengridconnectionsoflargescalewindpowerandconventionalsynchronousgeneration