Journal ArticleDOI
Transmission-Constrained Unit Commitment Considering Combined Electricity and District Heating Networks
TLDR
In this article, transmission-constrained unit commitment (UC) with combined electricity and district heating networks (UC-CEHN) is formulated with a linear DHN model to coordinate short-term operation of electric power and heating systems.Abstract:
Wind power integration could be restricted by inflexible operation of combined heat and power (CHP) units due to the strong linkage between power generation and heating supply in winter. Utilization of the heat storage capacity of existing district heating network (DHN) is a cost-effective measure to enhance power system operational flexibility to accommodate large amounts of variable wind power. In this paper, transmission-constrained unit commitment (UC) with combined electricity and district heating networks (UC-CEHN) is formulated with a linear DHN model to coordinate short-term operation of electric power and district heating systems. The heat storage capacity of the DHN is modeled by capturing the quasi-dynamics of pipeline temperature. Both deterministic and robust models are developed to incorporate UC with the linear DHN model. Case studies are carried out for two test systems to show the potential benefits of the proposed method in terms of wind power integration and efficient operation.read more
Citations
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Journal ArticleDOI
Optimal operation for integrated energy system considering thermal inertia of district heating network and buildings
TL;DR: In this paper, an optimal operation model for an integrated energy system (IES) combining the thermal inertia of a district heating network (DHN) and buildings to enhance the absorption of wind power is proposed.
Journal ArticleDOI
Dynamic Optimal Energy Flow in the Integrated Natural Gas and Electrical Power Systems
TL;DR: In this article, the optimal operation of the integrated gas and electrical power system with bidirectional energy conversion is studied. But the authors focus on the optimal operating of the system considering the different response times of the gas and power systems, the transient gas flow and steady-state power flow are combined to formulate the dynamic optimal energy flow in the integrated GA and power system.
Journal ArticleDOI
Distributed Multi-Energy Operation of Coupled Electricity, Heating, and Natural Gas Networks
TL;DR: A fully-distributed consensus-based alternating direction method of multipliers (ADMM) approach with only neighboring information exchange required is developed to optimize the multi-energy flows while considering the local energy-autonomy of heterogeneous energy hubs.
Journal ArticleDOI
Decentralized Solution for Combined Heat and Power Dispatch Through Benders Decomposition
TL;DR: In this paper, a decentralized solution to the CHPD model is proposed, where an optimal cut or a feasible cut is generated by the CHS operator and sent to the EPS operator.
Journal ArticleDOI
Feasible region method based integrated heat and electricity dispatch considering building thermal inertia
TL;DR: In this article, a new feasible region method is proposed for formulation of new district heating models, which exploit the flexibility of DHSs with consideration of building thermal inertia, and then the new models are sent to the ECC to be used in central dispatch considering DHS operation constraints, i.e., integrated heat and electricity dispatch.
References
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Journal ArticleDOI
The Price of Robustness
Dimitris Bertsimas,Melvyn Sim +1 more
TL;DR: In this paper, the authors propose an approach that attempts to make this trade-off more attractive by flexibly adjusting the level of conservatism of the robust solutions in terms of probabilistic bounds of constraint violations.
The price of the robustness
D Bertsimas,M Sim +1 more
TL;DR: An approach is proposed that flexibly adjust the level of conservatism of the robust solutions in terms of probabilistic bounds of constraint violations, and an attractive aspect of this method is that the new robust formulation is also a linear optimization problem, so it naturally extend to discrete optimization problems in a tractable way.
Journal ArticleDOI
Adaptive Robust Optimization for the Security Constrained Unit Commitment Problem
TL;DR: In this paper, a two-stage adaptive robust unit commitment model for the security constrained unit commitment problem in the presence of nodal net injection uncertainty is proposed, which only requires a deterministic uncertainty set, rather than a hard-to-obtain probability distribution on the uncertain data.
Journal ArticleDOI
Solving two-stage robust optimization problems using a column-and-constraint generation method
TL;DR: A computational study on a two-stage robust location-transportation problem shows that the column-and-constraint generation algorithm performs an order of magnitude faster than existing Benders-style cutting plane methods.
Journal ArticleDOI
Security-Constrained Unit Commitment With Volatile Wind Power Generation
TL;DR: In this article, a security-constrained unit commitment (SCUC) algorithm is proposed for managing the security of power system operation by taking into account the intermittency and volatility of wind power generation.