NDLI: Decentralised optimal dispatch of multi-area power systems based on non-linear value-function approximation

Content Provider	IET Digital Library
Author	Zhu, Jianquan Zhu, Tao Liu, Mingbo Lu, Wentian
Abstract	In recent years, the use of interconnected multi-area systems has increased significantly. To operate these systems efficiently, a proper coordination approach among different areas is required. With this context, a novel decentralised optimal dispatch algorithm is proposed in this study. The centralised economic dispatch model is decoupled into a series of sub-problems for different areas, allowing the independent decision of each area without a central operator. The detailed information of each area is not required for information exchange. To better estimate the impact of each area's decision on other areas, the approximate value functions of the tie-line powers are added into the local objective function of the sub-problem. This technique makes the decentralised solution of the proposed algorithm more explicit and rational compared with most existing distributed algorithms. Besides, the proposed technique does not require parameter tuning and has good convergence performance. Numerical simulations on several test systems and a real power system demonstrate that the proposed algorithm is favourable in terms of accuracy, adaptability, and computational efficiency.
Starting Page	5083
Ending Page	5090
Page Count	8
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 22, Nov (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/22
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.7108
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-09-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Approximate Value Function Centralised Economic Dispatch Model Convergence Performance Decentralised Optimal Dispatch Distributed Algorithm Function Approximation Information Exchange Interconnected Multiarea System Interpolation And Function Approximation Local Objective Function Multiarea Power System Nonlinear Value-function Approximation Numerical Analysis Numerical Simulation Optimal Dispatch Algorithm Power Generation Dispatch Power Generation Economics Power System Economics Power System Managemen Power System Operation Tie-line Powers
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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