Journal ArticleDOI
Strategic Bidding of Hybrid AC/DC Microgrid Embedded Energy Hubs: A Two-Stage Chance Constrained Stochastic Programming Approach
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TLDR
Results have verified the effectiveness of the proposed method, providing efficient bidding curves to the EHO through the stochastic management, and shows that the proposed strategy can balance the operational cost and service quality via the adjustment of chance constraints.Abstract:
To realize high efficient energy conversion among multiple energy carriers in market environment, the hybrid ac/dc microgrid is embedded as the electrical hub for energy hubs (EHs), and a stochastic day-ahead bidding strategy is proposed for the energy hub operators (EHOs). The electricity, heating, and cooling are managed to balance the operational cost and thermal service quality, while participating into the day-ahead market and real-time market. The uncertainties of prices, electrical loads, and ambient temperature are depicted by scenario trees, and are managed by a two-stage stochastic optimization scheme to minimize the expected and conditional value at the risk of operational cost. This stochastic optimization problem is reformulated to a linear programming (LP) problem under given conditions. In addition, a chance constraint is proposed to relax the quality of thermal services, and a two-stage chance constrained stochastic programming is formulated accordingly. It is further reformulated to a mixed integer LP problem. Simulations have been carried out on an EH with multiple types of energy generation, conversion, and storage systems. Results have verified the effectiveness of the proposed method, providing efficient bidding curves to the EHO through the stochastic management. Sensitive analysis shows that the proposed strategy can balance the operational cost and service quality via the adjustment of chance constraints.read more
Citations
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Journal ArticleDOI
Short-Term Self-Scheduling of Virtual Energy Hub Plant Within Thermal Energy Market
TL;DR: A new approach to energy hubs’ scheduling is offered, called virtual energy hub (VEH), and a nonprobabilistic information gap method is applied to a test case, and the numerical results validate the proposed approach.
Journal ArticleDOI
Robust Coordination of a Hybrid AC/DC Multi-Energy Ship Microgrid With Flexible Voyage and Thermal Loads
TL;DR: Simulation results indicate that the robust coordination model could reduce the ship operating cost and immune against the diverse uncertainties and is verified by the case study and comparisons with the existing ship operation benchmarks.
Journal ArticleDOI
Optimal Operation of Energy Hubs Considering Uncertainties and Different Time Resolutions
Mohammad Sadegh Javadi,Mohamed Lotfi,Ali Esmaeel Nezhad,Amjad Anvari-Moghaddam,Josep M. Guerrero,Joao P. S. Catalao +5 more
TL;DR: A robust chance-constrained optimization framework for the optimal operation management of an energy hub (EH) in the presence of electrical, heating, and cooling demands, and renewable power generation is presented.
Journal ArticleDOI
Distributed robust operational optimization of networked microgrids embedded interconnected energy hubs
TL;DR: EH concept is studied in networked microgrids structure to exploit the potential capabilities of microgrIDS in satisfying various types of energy demands and the obtained results by Gurobi is more optimal than heuristic algorithms.
Journal ArticleDOI
Day-ahead optimal bidding strategy of microgrid with demand response program considering uncertainties and outages of renewable energy resources
Saborni Das,Mousumi Basu +1 more
TL;DR: This study suggests an optimal bidding strategy considering uncertainty of renewable energy resources and DRP based on their outage probabilities and investigates the efficiency of the stochastic programming in uncertainty integration into the bidding problem.
References
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Journal ArticleDOI
A Hybrid AC/DC Microgrid and Its Coordination Control
TL;DR: A hybrid ac/dc micro grid is proposed to reduce the processes of multiple dc-ac-dc or ac-dc-ac conversions in an individual ac or dc grid to maintain stable operation under the proposed coordination control schemes.
Journal ArticleDOI
Energy hubs for the future
TL;DR: In this paper, the authors present a project named "Vision of Future Energy Networks", which aims at a greenfield approach for future energy systems, defined energy hubs and the conception of combined interconnector devices represent key approaches towards a multicarrier greenfield layout.
Journal ArticleDOI
A Centralized Energy Management System for Isolated Microgrids
TL;DR: Using the model predictive control technique, the optimal operation of the microgrid is determined using an extended horizon of evaluation and recourse, which allows a proper dispatch of the energy storage units.
Journal ArticleDOI
Bidding Strategy for Microgrid in Day-Ahead Market Based on Hybrid Stochastic/Robust Optimization
TL;DR: Numerical simulations on a microgrid consisting of a wind turbine, a photovoltaic panel, a fuel cell, a micro-turbine, a diesel generator, a battery, and a responsive load show the advantage of stochastic optimization, as well as robust optimization.
Journal ArticleDOI
Optimal Bidding Strategy for Microgrids Considering Renewable Energy and Building Thermal Dynamics
Duong Tung Nguyen,Long Bao Le +1 more
TL;DR: An optimal day-ahead price-based power scheduling problem for a community-scale microgrid (MG) is studied and the great benefits in exploiting the building thermal dynamics and the flexibility of the proposed scheduling method in achieving different practical design tradeoffs are presented.
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