Interaction and Coordination among Nuclear Power Plants, Power Grids and Their Protection Systems

Nuclear power plants (NPPs) have recently undergone rapid development in China. To improve the performance of both NPPs and grids during adverse conditions, a precise understanding of the coordination between NPPs and grids is required. Therefore, a new mathematical model with reasonable accuracy an...

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Main Authors: Guoyang Wu, Ping Ju, Xinli Song, Chenglong Xie, Wuzhi Zhong
Format: Article
Language:English
Published: MDPI AG 2016-04-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/9/4/306
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author Guoyang Wu
Ping Ju
Xinli Song
Chenglong Xie
Wuzhi Zhong
author_facet Guoyang Wu
Ping Ju
Xinli Song
Chenglong Xie
Wuzhi Zhong
author_sort Guoyang Wu
collection DOAJ
description Nuclear power plants (NPPs) have recently undergone rapid development in China. To improve the performance of both NPPs and grids during adverse conditions, a precise understanding of the coordination between NPPs and grids is required. Therefore, a new mathematical model with reasonable accuracy and reduced computational complexity is developed. This model is applicable to the short, mid, and long-term dynamic simulation of large-scale power systems. The effectiveness of the model is verified by using an actual NPP full-scope simulator as a reference. Based on this model, the interaction and coordination between NPPs and grids under the conditions of over-frequency, under-frequency and under-voltage are analyzed, with special stress applied to the effect of protection systems on the safe operation of both NPPs and power grids. Finally, the coordinated control principles and schemes, together with the recommended protection system values, are proposed for both NPPs and grids. These results show that coordination between the protection systems of NPPs and power networks is a crucial factor in ensuring the safe and stable operation of both NPPs and grids. The results can be used as a reference for coordination between NPPs and grids, as well as for parameter optimization of grid-related generator protection of NPPs.
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spelling doaj.art-34ef131fae704831ac7b4363214805dd2022-12-22T04:01:41ZengMDPI AGEnergies1996-10732016-04-019430610.3390/en9040306en9040306Interaction and Coordination among Nuclear Power Plants, Power Grids and Their Protection SystemsGuoyang Wu0Ping Ju1Xinli Song2Chenglong Xie3Wuzhi Zhong4School of Energy and Electrical Engineering, Hohai University, Nanjing 210098, ChinaSchool of Energy and Electrical Engineering, Hohai University, Nanjing 210098, ChinaChina Electric Power Research Institute, Beijing 100192, ChinaChina Nuclear Power Operation Technology Co. Ltd., Wuhan 430223, ChinaChina Electric Power Research Institute, Beijing 100192, ChinaNuclear power plants (NPPs) have recently undergone rapid development in China. To improve the performance of both NPPs and grids during adverse conditions, a precise understanding of the coordination between NPPs and grids is required. Therefore, a new mathematical model with reasonable accuracy and reduced computational complexity is developed. This model is applicable to the short, mid, and long-term dynamic simulation of large-scale power systems. The effectiveness of the model is verified by using an actual NPP full-scope simulator as a reference. Based on this model, the interaction and coordination between NPPs and grids under the conditions of over-frequency, under-frequency and under-voltage are analyzed, with special stress applied to the effect of protection systems on the safe operation of both NPPs and power grids. Finally, the coordinated control principles and schemes, together with the recommended protection system values, are proposed for both NPPs and grids. These results show that coordination between the protection systems of NPPs and power networks is a crucial factor in ensuring the safe and stable operation of both NPPs and grids. The results can be used as a reference for coordination between NPPs and grids, as well as for parameter optimization of grid-related generator protection of NPPs.http://www.mdpi.com/1996-1073/9/4/306coordination between units and gridsdynamic simulationmodelingnuclear power plant (NPP)pressurized water reactor (PWR)grid-related protection
spellingShingle Guoyang Wu
Ping Ju
Xinli Song
Chenglong Xie
Wuzhi Zhong
Interaction and Coordination among Nuclear Power Plants, Power Grids and Their Protection Systems
Energies
coordination between units and grids
dynamic simulation
modeling
nuclear power plant (NPP)
pressurized water reactor (PWR)
grid-related protection
title Interaction and Coordination among Nuclear Power Plants, Power Grids and Their Protection Systems
title_full Interaction and Coordination among Nuclear Power Plants, Power Grids and Their Protection Systems
title_fullStr Interaction and Coordination among Nuclear Power Plants, Power Grids and Their Protection Systems
title_full_unstemmed Interaction and Coordination among Nuclear Power Plants, Power Grids and Their Protection Systems
title_short Interaction and Coordination among Nuclear Power Plants, Power Grids and Their Protection Systems
title_sort interaction and coordination among nuclear power plants power grids and their protection systems
topic coordination between units and grids
dynamic simulation
modeling
nuclear power plant (NPP)
pressurized water reactor (PWR)
grid-related protection
url http://www.mdpi.com/1996-1073/9/4/306
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AT chenglongxie interactionandcoordinationamongnuclearpowerplantspowergridsandtheirprotectionsystems
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