Distributed coordination regulation marginal cost control strategy for automatic generation control of interconnected power system

The area-level coordination of regulation capacity by automatic generation control (AGC) is an effective approach to mitigate wind power fluctuations in interconnected power system with high wind penetration. However, the applicability of this method is restricted by the existing AGC strategy. For t...

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Veröffentlicht in:IET generation, transmission & distribution Jg. 11; H. 6; S. 1337 - 1344
Hauptverfasser: Zhang, Lei, Luo, Yi, Ye, Jing, Xiao, Ya-yuan
Format: Journal Article
Sprache:Englisch
Veröffentlicht: The Institution of Engineering and Technology 20.04.2017
Schlagworte:
AGC strategy
area‐level coordination
automatic generation control
China
communication networks
distributed control
distributed coordination RMC controller
frequency control
frequency control performance standard
gradient methods
interconnected power system
multi‐area coordination rule
partial primal‐dual subgradient algorithm
power system control
power system interconnection
regulation capacity
regulation marginal cost control strategy
Research Article
wind curtailments
wind power fluctuation mitigation
distributed coordination RMC controller
multi-area coordination rule
interconnected power system
distributed control
communication networks
AGC strategy
frequency control performance standard
frequency control
area-level coordination
partial primal-dual subgradient algorithm
regulation capacity
regulation marginal cost control strategy
automatic generation control
power system interconnection
wind power fluctuation mitigation
China
power system control
gradient methods
wind curtailments
ISSN:1751-8687, 1751-8695
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Zusammenfassung:The area-level coordination of regulation capacity by automatic generation control (AGC) is an effective approach to mitigate wind power fluctuations in interconnected power system with high wind penetration. However, the applicability of this method is restricted by the existing AGC strategy. For this reason, power systems in China are experiencing serious wind curtailments to meet the power balance. In this study, a distributed coordination AGC strategy based on regulation marginal cost (RMC) is proposed for coordinating regulation capacity in different areas to remove frequency deviations. Detailed regulating characteristics of the AGC strategy in the existing power systems are discussed. Based on the above analysis, a distributed coordination RMC controller is designed to meet the proposed multi-area coordination rule using a partial primal-dual sub-gradient algorithm. In this proposed controller, the coordination signal containing RMC is exchanged with adjacent controllers through communication networks. The simulation results prove that the distributed coordination RMC strategy can economically coordinate the regulation capacity of an interconnected power system and satisfy the frequency control performance standard.
ISSN:1751-8687
1751-8695
DOI:10.1049/iet-gtd.2015.1253