NDLI: Multi-variable constrained non-linear optimal planning and operation problem for isolated microgrids with stochasticity in wind, solar, and load demand data

Content Provider	IET Digital Library
Author	Kumar, Maneesh Tyagi, Barjeev
Abstract	A microgrid (MG) is a cluster of small-scale sources known as micro-sources, the energy storage devices, and the loads. MGs are promising entities that allow a considerable amount of renewable energy penetration into the system. A stochastic optimisation model is presented in this study to find the optimal size of the distributed energy resources (DERs). The uncertainties are considered with the help of multiple scenarios of random variables viz. wind output, solar output, and load demand data. A particular case of Beta distribution is used to create these variations. A cost-based, multi-variable constrained non-linear objective function is formulated. The considered test MG system is more generalized with solar and wind energy penetration. The results show the effect of operational as well as the planning aspects together under various reliability conditions for an isolated MG. The formulated problem is solved to obtain a global optimal solution using a sequential programming approach and a comparative assessment of results with a hybrid particle swarm optimisation (PSO) approach has also been presented. It is found that the results obtained from the sequential programming approach are better compared to the hybrid PSO approach.
Starting Page	2181
Ending Page	2190
Page Count	10
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 11, Jun (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0643
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-02-26
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Beta Distribution Cost-based Function DERs Distributed Energy Resources Distributed Power Generation Energy Storage Device Global Optimal Solution Hybrid Particle Swarm Optimisation Approach Isolated MG Isolated Microgrid Load Demand Data Microgrid System MicroSource Multivariable Constrained Nonlinear Optimal Planning Nonlinear Objective Function Operation Problem Operational Cost Optimal Size Optimal Sizing Optimisation Technique Particle Swarm Optimisation Power Distribution Planning Power Distribution Reliability Power Generation Planning Power Generation Reliability Power System Planning And Layout Random Variables Reliability Reliability Condition Renewable Energy Penetration Sequential Programming Approach Small-scale Source Solar Output Stochastic Optimisation Model Stochastic Programming Stochasticity System Constraint Test MG System Wind Output
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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