Linear programming techniques for developing an optimal electrical system including high-voltage direct-current transmission and storage

•Developed load-matching optimization of electric power system.•Developed cost optimization of electric power system.•Tested the optimizations on a demonstration electric power system.•Hybrid optimization discussed that blends different criteria.•Combined generation, transmission, storage and power...

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Vydané v:International journal of electrical power & energy systems Ročník 68; s. 103 - 114
Hlavní autori: Clack, C.T.M., Xie, Y., MacDonald, A.E.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Elsevier Ltd 01.06.2015
Predmet:
Computation
Costs
Electric power generation
Electric power systems
Electrical power systems
Generators
Linear programming
Mathematical models
Mathematical optimization
Methods and techniques
Optimization
Planning
Renewable energy
Transmission networks
Transmission networks
Planning
Renewable energy
Mathematical optimization
Electrical power systems
Methods and techniques
ISSN:0142-0615, 1879-3517
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Shrnutí:•Developed load-matching optimization of electric power system.•Developed cost optimization of electric power system.•Tested the optimizations on a demonstration electric power system.•Hybrid optimization discussed that blends different criteria.•Combined generation, transmission, storage and power flow in one optimization. The planning and design of an electric power system, including high-voltage direct-current transmission, is a complex optimization problem. The optimization must integrate and model the engineering requirements and limitations of the generation, while simultaneously balancing the system electric load at all times. The problem is made more difficult with the introduction of variable generators, such as wind and solar photovoltaics. In the present paper, we introduce two comprehensive linear programming techniques to solve these problems. Linear programming is intentionally chosen to keep the problems tractable in terms of time and computational resources. The first is an optimization that minimizes the deviation from the electric load requirements. The procedure includes variable generators, conventional generators, transmission, and storage, along with their most salient engineering requirements. In addition, the optimization includes some basic electric power system requirements. The second optimization is one that minimizes the overall system costs per annum while taking into consideration all the aspects of the first optimization. We discuss the benefits and disadvantages of the proposed approaches. We show that the cost optimization, although computationally more expensive, is superior in terms of optimizing a real-world electric power system. The present paper shows that linear programming techniques can represent an electrical power system from a high-level without undue complication brought on by moving to mixed integer or nonlinear programming. In addition, the optimizations can be implemented in the future in planning tools.
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ISSN:0142-0615
1879-3517
DOI:10.1016/j.ijepes.2014.12.049