Coordinated voltage control of renewable energy power plants in weak sending-end power grid
The utilization of renewable energy in sending-end power grids is increasing rapidly, which brings difficulties to voltage control. This paper proposes a coordinated voltage control strategy based on model predictive control (MPC) for the renewable energy power plants of wind and solar power connect...
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KeAi Communications Co., Ltd.
2020-08-01
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doaj-27f31d466ebc41b38bc27b4643ed6b8e2021-04-02T16:40:25ZengKeAi Communications Co., Ltd.Global Energy Interconnection2096-51172020-08-0134365374Coordinated voltage control of renewable energy power plants in weak sending-end power gridYongning Chi0Weihao Li1Qiuwei Wu2Chao Liu3Department of Renewable Energy, China Electric Power Research Institute, Beijing 100031, PR ChinaSchool of Electrical Engineering, Shandong University, Jinan 250000, PR ChinaSchool of Electrical Engineering, Shandong University, Jinan 250000, PR China; Center for Electric Power and Energy, Department of Electrical Engineering, Technical University of Denmark, Kgs., Lyngby, DenmarkDepartment of Renewable Energy, China Electric Power Research Institute, Beijing 100031, PR ChinaThe utilization of renewable energy in sending-end power grids is increasing rapidly, which brings difficulties to voltage control. This paper proposes a coordinated voltage control strategy based on model predictive control (MPC) for the renewable energy power plants of wind and solar power connected to a weak sending-end power grid (WSPG). Wind turbine generators (WTGs), photovoltaic arrays (PVAs), and a static synchronous compensator are coordinated to maintain voltage within a feasible range during operation. This results in the full use of the reactive power capability of WTGs and PVAs. In addition, the impact of the active power outputs of WTGs and PVAs on voltage control are considered because of the high R/X ratio of a collector system. An analytical method is used for calculating sensitivity coefficients to improve computation efficiency. A renewable energy power plant with 80 WTGs and 20 PVAs connected to a WSPG is used to verify the proposed voltage control strategy. Case studies show that the coordinated voltage control strategy can achieve good voltage control performance, which improves the voltage quality of the entire power plant.http://www.sciencedirect.com/science/article/pii/S2096511720300943Coordinated voltage controlModel predictive control (MPC)Renewable energyWeak sending-end power gridWind turbine generators (WTGs)Photovoltaic arrays (PVAs) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yongning Chi Weihao Li Qiuwei Wu Chao Liu |
spellingShingle |
Yongning Chi Weihao Li Qiuwei Wu Chao Liu Coordinated voltage control of renewable energy power plants in weak sending-end power grid Global Energy Interconnection Coordinated voltage control Model predictive control (MPC) Renewable energy Weak sending-end power grid Wind turbine generators (WTGs) Photovoltaic arrays (PVAs) |
author_facet |
Yongning Chi Weihao Li Qiuwei Wu Chao Liu |
author_sort |
Yongning Chi |
title |
Coordinated voltage control of renewable energy power plants in weak sending-end power grid |
title_short |
Coordinated voltage control of renewable energy power plants in weak sending-end power grid |
title_full |
Coordinated voltage control of renewable energy power plants in weak sending-end power grid |
title_fullStr |
Coordinated voltage control of renewable energy power plants in weak sending-end power grid |
title_full_unstemmed |
Coordinated voltage control of renewable energy power plants in weak sending-end power grid |
title_sort |
coordinated voltage control of renewable energy power plants in weak sending-end power grid |
publisher |
KeAi Communications Co., Ltd. |
series |
Global Energy Interconnection |
issn |
2096-5117 |
publishDate |
2020-08-01 |
description |
The utilization of renewable energy in sending-end power grids is increasing rapidly, which brings difficulties to voltage control. This paper proposes a coordinated voltage control strategy based on model predictive control (MPC) for the renewable energy power plants of wind and solar power connected to a weak sending-end power grid (WSPG). Wind turbine generators (WTGs), photovoltaic arrays (PVAs), and a static synchronous compensator are coordinated to maintain voltage within a feasible range during operation. This results in the full use of the reactive power capability of WTGs and PVAs. In addition, the impact of the active power outputs of WTGs and PVAs on voltage control are considered because of the high R/X ratio of a collector system. An analytical method is used for calculating sensitivity coefficients to improve computation efficiency. A renewable energy power plant with 80 WTGs and 20 PVAs connected to a WSPG is used to verify the proposed voltage control strategy. Case studies show that the coordinated voltage control strategy can achieve good voltage control performance, which improves the voltage quality of the entire power plant. |
topic |
Coordinated voltage control Model predictive control (MPC) Renewable energy Weak sending-end power grid Wind turbine generators (WTGs) Photovoltaic arrays (PVAs) |
url |
http://www.sciencedirect.com/science/article/pii/S2096511720300943 |
work_keys_str_mv |
AT yongningchi coordinatedvoltagecontrolofrenewableenergypowerplantsinweaksendingendpowergrid AT weihaoli coordinatedvoltagecontrolofrenewableenergypowerplantsinweaksendingendpowergrid AT qiuweiwu coordinatedvoltagecontrolofrenewableenergypowerplantsinweaksendingendpowergrid AT chaoliu coordinatedvoltagecontrolofrenewableenergypowerplantsinweaksendingendpowergrid |
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1721555818613047296 |