NDLI: Co-optimisation for distribution networks with multi-microgrids based on a two-stage optimisation model with dynamic electricity pricing

Content Provider	IET Digital Library
Author	Hu, Xiaotong Liu, Tianqi
Abstract	Microgrids (MG) with renewable sources and storage devices play an important role in distribution networks (DNs). MG economic load dispatch normally does not support DN, especially when they belong to different companies and share different interests. To achieve optimal operation of DN with multi-MGs, a two-stage optimisation model is established based on the dynamic electricity pricing strategy. The dynamic electricity pricing strategy gives incentive for MG to participate in the operation of DN, and it is determined by the matching degree between exchange power expected by DN and the real exchange power. Moreover, the life time characteristic of a storage device system is taken into consideration in the second stage via the rain-flow-counting method. The multi-objective particle swarm optimisation is applied to solve the two-stage optimisation problem. Besides, initial particles generated based on Latin hypercube sampling, global best position obtained based on adaptive selection, and non-uniform mutation operator are applied to improve search efficiency as well as maintain the population diversity of the algorithm. Simulation results show that the power sharing between MGs’ and DNs’ can smooth the load curve of DN as well as reduce the total operation cost of MGs.
Starting Page	2251
Ending Page	2259
Page Count	9
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 9, Jun (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.1602
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-03-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Selection Combinatorial Mathematics Distributed Power Generation Distribution Network DNs Dynamic Electricity Pricing Strategy Global Best Position Latin Hypercube Sampling Lifetime Characteristic MG Economic Load Dispatch Multimicrogrids Multiobjective Particle Swarm Optimisation Nonuniform Mutation Operator Optimisation Technique Particle Swarm Optimisation Power Distribution Economics Power Generation Economics Power Market Power System Economics Power System Managemen Power System Operation Pricing Rain-flow-counting Method Renewable Source Sampling Method Search Efficiency Search Problem Statistics Storage Device System Two-stage Optimisation Model
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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